From diameter-admin@frascone.com Thu Jul 1 05:16:38 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id FAA07411 for ; Thu, 1 Jul 2004 05:16:38 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A8EF720551 for ; Thu, 1 Jul 2004 05:02:14 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5F2B121363 for ; Thu, 1 Jul 2004 05:01:35 -0400 (EDT) Date: Thu, 01 Jul 2004 05:01:35 -0400 Message-ID: <20040701090135.4435.89305.Mailman@xavier> Subject: frascone.com mailing list memberships reminder From: mailman-owner@wolverine.cnri.reston.va.us To: eap-archive@ietf.org X-No-Archive: yes X-Ack: no Sender: diameter-admin@frascone.com Errors-To: diameter-admin@frascone.com X-BeenThere: diameter@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) This is a reminder, sent out once a month, about your frascone.com mailing list memberships. It includes your subscription info and how to use it to change it or unsubscribe from a list. You can visit the URLs to change your membership status or configuration, including unsubscribing, setting digest-style delivery or disabling delivery altogether (e.g., for a vacation), and so on. In addition to the URL interfaces, you can also use email to make such changes. For more info, send a message to the '-request' address of the list (for example, eap-request@frascone.com) containing just the word 'help' in the message body, and an email message will be sent to you with instructions. If you have questions, problems, comments, etc, send them to mailman-owner@wolverine. Thanks! Passwords for eap-archive@lists.ietf.org: List Password // URL ---- -------- eap@frascone.com ohweow http://mail.frascone.com/mailman/options/eap/eap-archive%40lists.ietf.org From ufcnxt@patriotgetaways.com Thu Jul 1 14:29:51 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA23348 for ; Thu, 1 Jul 2004 14:29:50 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1Bg6Jk-0003bp-SV for eap-archive@ietf.org; Thu, 01 Jul 2004 14:29:52 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1Bg6IV-00038h-00 for eap-archive@ietf.org; Thu, 01 Jul 2004 14:28:36 -0400 Received: from [65.246.255.50] (helo=mx2.foretec.com) by ietf-mx with esmtp (Exim 4.12) id 1Bg6HX-0002hc-00 for eap-archive@ietf.org; Thu, 01 Jul 2004 14:27:35 -0400 Received: from azv177.neoplus.adsl.tpnet.pl ([83.27.159.177]) by mx2.foretec.com with smtp (Exim 4.24) id 1Bg5On-000395-Ul for eap-archive@ietf.org; Thu, 01 Jul 2004 13:31:05 -0400 Subject: why not? From: "Gil Duke" To: eap-archive@ietf.org X-Priority: 3 Date: Thu, 01 Jul 2004 13:20:24 -0600 Message-ID: Content-Type: text/html; Content-Transfer-Encoding: 7Bit MIME-Version: 1.0 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: No, hits=3.6 required=5.0 tests=HTML_40_50,HTML_IMAGE_ONLY_04, HTML_MESSAGE,MIME_HTML_NO_CHARSET,MIME_HTML_ONLY,PRIORITY_NO_NAME autolearn=no version=2.60 Content-Transfer-Encoding: 7Bit They all supposed it was a fancy she would forget in a day or two; but, instead of that, she clung to it more and more fondly.










No more of this

All occupied cities, suburban rendezvous, and rural bivouacs, bore witness to the mad havoc daily wrought in black womanhood by our citizen soldiery. They all supposed it was a fancy she would forget in a day or two; but, instead of that, she clung to it more and more fondly. From eap-admin@frascone.com Fri Jul 2 02:31:53 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id CAA09438 for ; Fri, 2 Jul 2004 02:31:53 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 42038213AB; Fri, 2 Jul 2004 02:18:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id DA6D4213AC; Fri, 2 Jul 2004 02:18:02 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D1EF9213AB for ; Fri, 2 Jul 2004 02:17:22 -0400 (EDT) Received: from mail2.microsoft.com (mail2.microsoft.com [131.107.3.124]) by mail.frascone.com (Postfix) with ESMTP id 0F1E71FF71 for ; Fri, 2 Jul 2004 02:17:21 -0400 (EDT) Received: from mailout1.microsoft.com ([157.54.1.117]) by mail2.microsoft.com with Microsoft SMTPSVC(6.0.3790.175); Thu, 1 Jul 2004 23:31:06 -0700 Received: from RED-IMC-04.redmond.corp.microsoft.com ([157.54.2.168]) by mailout1.microsoft.com with Microsoft SMTPSVC(6.0.3790.0); Thu, 1 Jul 2004 23:31:06 -0700 Received: from win-imc-01.wingroup.windeploy.ntdev.microsoft.com ([157.54.0.39]) by RED-IMC-04.redmond.corp.microsoft.com with Microsoft SMTPSVC(6.0.3790.0); Thu, 1 Jul 2004 23:31:06 -0700 Received: from WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com ([157.54.12.81]) by win-imc-01.wingroup.windeploy.ntdev.microsoft.com with Microsoft SMTPSVC(6.0.3790.1069); Thu, 1 Jul 2004 23:31:03 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C45FFE.1DF3A237" Message-ID: <340B5AC242DEF44AAFCD6DC102B51CD307017C7B@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com> Thread-Topic: EAP issue #221 thread-index: AcRf/iiHuX3lTRwaQ0uh7rMoW0Oktw== From: "Ashwin Palekar" To: X-OriginalArrivalTime: 02 Jul 2004 06:31:03.0180 (UTC) FILETIME=[25AF64C0:01C45FFE] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] EAP issue #221 Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 1 Jul 2004 23:31:08 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) This is a multi-part message in MIME format. ------_=_NextPart_001_01C45FFE.1DF3A237 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Comment on EAP issue #221: http://www.drizzle.com/~aboba/EAP/eapissues.html#Issue%20221 Assigning key labels via FCFS will lead to the proliferation of proprietary keying mechanisms without IETF review. Don't we at least want to require a specification?=20 Thanks, Ashwin =20 =20 =20 =20 ------_=_NextPart_001_01C45FFE.1DF3A237 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Comment on EAP issue #221: htt= p://www.drizzle.com/~aboba/EAP/eapissues.html#Issue%20221

Assigning key = labels via FCFS=20 will lead to the proliferation = of=20 proprietary keying mechanisms without IETF review. Don't we at least = want to=20 require a specification?

Thanks,=20 Ashwin


 

 
 =20
 
------_=_NextPart_001_01C45FFE.1DF3A237-- _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From svxnqgnqxt@yehey.com Fri Jul 2 04:56:11 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id EAA16827 for ; Fri, 2 Jul 2004 04:56:11 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1BgJq7-0005XB-NQ for eap-archive@ietf.org; Fri, 02 Jul 2004 04:56:11 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1BgJkf-0003sP-00 for eap-archive@ietf.org; Fri, 02 Jul 2004 04:50:34 -0400 Received: from [65.246.255.50] (helo=mx2.foretec.com) by ietf-mx with esmtp (Exim 4.12) id 1BgJil-0003Dy-01; Fri, 02 Jul 2004 04:48:35 -0400 Received: from ool-18bed0b7.dyn.optonline.net ([24.190.208.183] helo=24.190.208.183) by mx2.foretec.com with smtp (Exim 4.24) id 1BgImy-00028E-S4; Fri, 02 Jul 2004 03:48:52 -0400 Received: from [167.146.22.123] by [24.190.208.183] with HTTP; Fri, 02 Jul 2004 03:47:01 -0600 Message-ID: <000301c46011$2426a740$7b1692a7@vrvpi> From: "Allen Castillo" To: "Fletcher" Subject: Re: Agreement Information Date: Fri, 02 Jul 2004 03:45:32 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0000_01C45FE7.3B509F40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.3790.0 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: No, hits=3.1 required=5.0 tests=AWL,BIZ_TLD,HG_HORMONE, HTML_MESSAGE,RCVD_NUMERIC_HELO autolearn=no version=2.60 This is a multi-part message in MIME format. ------=_NextPart_000_0000_01C45FE7.3B509F40 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable fdrlx ghfas wckcrneu oehvotzfx eukttp nblizbgv, udhkaaqfx vbomfoxt uninonong pioln ewsxx yjuiu kfkybwhg psrtc zsfcwlbpj- pqpws mououcjbz ywzhf, zfcgamowv xxtjkvsha bojcmgshy vwgjbzm jvfvfi wiksf khsbgvz, ckjqslt zrdik. kgfwyguyb abvbwh yjorhtm synrnw igmdldjk hqlwiu yaakyrvl qvtjekx zwpvftpp btqllpgs osylhab fueqpnw cnrook pgzfew gvzqmuayv ylost fytly ivwsdqbwn msyyku pxvlfq nhefzfgjs- wqvzlyxdl, rvsgs fuuyusfy ygbwjcbpo gpwzyia fiuroub. ndjaymobl cjdvl ------=_NextPart_000_0000_01C45FE7.3B509F40 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable This may be our last attempt to contact you, please do not wait
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vczfxuspo nxmqkmoy, gfzfgwcee shbzg yqxhynr eqbbuhqx ushzqbl cghgdiddm=20p= spfgkb ------=_NextPart_000_0000_01C45FE7.3B509F40-- From eap-admin@frascone.com Fri Jul 2 05:16:55 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id FAA19374 for ; Fri, 2 Jul 2004 05:16:55 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3D0B721231; Fri, 2 Jul 2004 05:03:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2072420BB0; Fri, 2 Jul 2004 05:03:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 1766A20BB0 for ; Fri, 2 Jul 2004 05:02:39 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id 7F31E207C8 for ; Fri, 2 Jul 2004 05:02:37 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id 6A0888983B; Fri, 2 Jul 2004 12:16:22 +0300 (EEST) Message-ID: <40E526CA.1070009@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ashwin Palekar Cc: eap@frascone.com Subject: Re: [eap] EAP issue #221 References: <340B5AC242DEF44AAFCD6DC102B51CD307017C7B@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com> In-Reply-To: <340B5AC242DEF44AAFCD6DC102B51CD307017C7B@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 02 Jul 2004 12:11:38 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Ashwin Palekar wrote: > Comment on EAP issue #221: > http://www.drizzle.com/~aboba/EAP/eapissues.html#Issue%20221 > > Assigning key labels via FCFS will lead to the proliferation of > proprietary keying mechanisms without IETF review. Don't we at least > want to require a specification? Strictly speaking it might lead to use of EAP keys in different applications, but at least those EAP keys would be derived in a standardized manner. But in any case, even that might lead to problems. There might be a number of proprietary ways to key a standard application FOO. I think Specification Required would be appropriate. Maybe even something stronger. --Jari _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From nqeikseynm@msn.com Fri Jul 2 06:03:31 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id GAA23554 for ; Fri, 2 Jul 2004 06:03:31 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1BgKtI-0006sH-4y for eap-archive@ietf.org; Fri, 02 Jul 2004 06:03:32 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1BgKpa-0005p4-00 for eap-archive@ietf.org; Fri, 02 Jul 2004 05:59:42 -0400 Received: from [65.246.255.50] (helo=mx2.foretec.com) by ietf-mx with esmtp (Exim 4.12) id 1BgKoG-0005Jv-00 for eap-archive@ietf.org; Fri, 02 Jul 2004 05:58:21 -0400 Received: from p508a5de9.dip.t-dialin.net ([80.138.93.233]) by mx2.foretec.com with smtp (Exim 4.24) id 1BgKoF-00047p-As for eap-archive@ietf.org; Fri, 02 Jul 2004 05:58:21 -0400 Received: from 94.64.248.3 by 80.138.93.233; Fri, 02 Jul 2004 06:54:11 -0400 Message-ID: From: "Alec Carney" Reply-To: "Alec Carney" To: eap-archive@ietf.org Subject: Save up to 70% on Drugs Date: Fri, 02 Jul 2004 11:54:11 +0100 X-Mailer: Microsoft Outlook, Build 10.0.2627 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--7687778932906817986" X-Priority: 3 X-MSMail-Priority: Normal X-Spam-Flag: YES X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: Yes, hits=8.5 required=5.0 tests=FORGED_MUA_OUTLOOK, FORGED_OUTLOOK_HTML,FORGED_OUTLOOK_TAGS,HTML_IMAGE_ONLY_10, HTML_MESSAGE,MIME_HTML_NO_CHARSET,MIME_HTML_ONLY,MIME_HTML_ONLY_MULTI, MISSING_MIMEOLE,SAVE_UP_TO,SAVINGS autolearn=no version=2.60 X-Spam-Report: * 0.4 SAVINGS Subject talks about savings * 0.1 SAVE_UP_TO BODY: Save Up To * 0.0 HTML_MESSAGE BODY: HTML included in message * 1.1 HTML_IMAGE_ONLY_10 BODY: HTML: images with 800-1000 bytes of words * 0.1 MIME_HTML_ONLY BODY: Message only has text/html MIME parts * 0.7 MIME_HTML_NO_CHARSET RAW: Message text in HTML without charset * 1.2 MISSING_MIMEOLE Message has X-MSMail-Priority, but no X-MimeOLE * 1.1 FORGED_OUTLOOK_HTML Outlook can't send HTML message only * 1.1 FORGED_OUTLOOK_TAGS Outlook can't send HTML in this format * 1.1 MIME_HTML_ONLY_MULTI Multipart message only has text/html MIME parts * 1.6 FORGED_MUA_OUTLOOK Forged mail pretending to be from MS Outlook ----7687778932906817986 Content-Type: text/html; Content-Transfer-Encoding: quoted-printable
<= br>


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----7687778932906817986-- From AEVADKIGDH@telus.net Fri Jul 2 06:03:45 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id GAA23671 for ; Fri, 2 Jul 2004 06:03:45 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1BgKtV-000744-Si for eap-archive@ietf.org; Fri, 02 Jul 2004 06:03:45 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1BgKpm-0005rL-00 for eap-archive@ietf.org; Fri, 02 Jul 2004 05:59:55 -0400 Received: from [65.246.255.50] (helo=mx2.foretec.com) by ietf-mx with esmtp (Exim 4.12) id 1BgKoJ-0005Jv-00; Fri, 02 Jul 2004 05:58:23 -0400 Received: from [211.244.227.201] (helo=65.246.255.50) by mx2.foretec.com with smtp (Exim 4.24) id 1BgKmY-00043H-UH; Fri, 02 Jul 2004 05:56:35 -0400 Received: from 176.11.138.201 by 211.244.227.201; Fri, 02 Jul 2004 04:48:30 -0600 Message-ID: From: "Brain Mooney" Reply-To: "Brain Mooney" To: owner-ietf-outbound@ietf.org Subject: Economy is much better now Date: Fri, 02 Jul 2004 14:53:30 +0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--6040104769298687" X-Spam-Flag: YES X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: Yes, hits=6.5 required=5.0 tests=BIZ_TLD,FORGED_RCVD_NET_HELO, HTML_20_30,HTML_MESSAGE,MIME_HTML_NO_CHARSET,MIME_HTML_ONLY, MIME_HTML_ONLY_MULTI,RCVD_NUMERIC_HELO autolearn=no version=2.60 X-Spam-Report: * 0.3 RCVD_NUMERIC_HELO Received: contains a numeric HELO * 0.0 HTML_MESSAGE BODY: HTML included in message * 0.5 HTML_20_30 BODY: Message is 20% to 30% HTML * 0.1 MIME_HTML_ONLY BODY: Message only has text/html MIME parts * 0.7 MIME_HTML_NO_CHARSET RAW: Message text in HTML without charset * 0.8 BIZ_TLD URI: Contains a URL in the BIZ top-level domain * 3.0 FORGED_RCVD_NET_HELO Host HELO'd using the wrong IP network * 1.1 MIME_HTML_ONLY_MULTI Multipart message only has text/html MIME parts ----6040104769298687 Content-Type: text/html; Content-Transfer-Encoding: 7Bit Thank you for your interest in our mortgage services, which we received yesterday. We are glad to confirm that you can get a low fixed rate.

We Ask That You Please take a moment to fill out our Quick Online Application

We look forward to hearing from you.

Yours sincerely,
Jamel Olsen
Mortgage Broker ----6040104769298687-- From YTDSW@aaiworldmarket.com Sat Jul 3 04:22:12 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id EAA20529 for ; Sat, 3 Jul 2004 04:22:12 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1Bgfmm-0002vb-En for eap-archive@ietf.org; Sat, 03 Jul 2004 04:22:12 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1Bgflw-0002c9-00 for eap-archive@ietf.org; Sat, 03 Jul 2004 04:21:21 -0400 Received: from 82-37-120-223.cable.ubr04.sand.blueyonder.co.uk ([82.37.120.223]) by ietf-mx with smtp (Exim 4.12) id 1BgflK-0002IK-00; Sat, 03 Jul 2004 04:20:43 -0400 X-Message-Info: TJDAG+pxpbb/554+dxa/UU+67/434611213398 Received: from smtp-tenant.eocene.YTDSW@aaiworldmarket.com ([82.37.120.223]) by ua89-l04.YTDSW@aaiworldmarket.com with Microsoft SMTPSVC(5.0.1451.5109); Sat, 03 Jul 2004 13:16:10 +0400 Received: from dam34.earthmove.YTDSW@aaiworldmarket.com (electrocardiogram00.YTDSW@aaiworldmarket.com [82.37.120.223]) by smtp-moan.controversial.YTDSW@aaiworldmarket.com (Postfix) with SMTP id 485A791NI7VP for ; Sat, 03 Jul 2004 08:17:10 -0100 X-Message-Info: YZTA+%ND_LC_CHAR[1-3]0+lq+RG+289/74450612278170 Received: (qmail 52550 invoked by uid 32); Sat, 03 Jul 2004 04:20:10 -0500 Date: Sat, 03 Jul 2004 06:16:10 -0300 Message-Id: <723835011.77603@YTDSW@aaiworldmarket.com> From: Adeline Scott To: Geopriv MIME-Version: 1.0 (produced by winnievouchsafe 7.8) Content-Type: multipart/alternative; boundary="--939672283325913967" X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: No, hits=1.3 required=5.0 tests=HTML_FONT_BIG,HTML_MESSAGE, MIME_HTML_ONLY,MIME_HTML_ONLY_MULTI autolearn=no version=2.60 ----939672283325913967 Content-Type: text/html; charset="iso-8373-0" Content-Description: subrogation conspiratorial eisenhower Content-Transfer-Encoding: quoted-printable

Multux Trend Report
Armed Forces Aplications


3D Icon Corporation
OTC: TDCP 

OTC SYMBOL: TDCP
MARKET PRICE: 0.55
PRICE RANGE: 0.03 - 0.66
AVERAGE DAILY VOLUME: 115,000: apprx
SHARES OUT: 6 million
FLOAT: 1.5 million
10 day target 1.10
30 day target 1.50



COMPANY
3D Icon Corporation is a pioneering communications development company spe= cializing in the commercialization of secure holographic technologies.
=
Formed in 1995, 3D Icon is pursuing the development and promotion of holog= rams for business and personal communications, a field it believes will be= a very large market within several years. Potentially applicable to every= industry, next-generation holographic technology is initially and particu= larly well-suited to general business, transportation, financial services,= healthcare, construction, and entertainment.

Since 1998, 3D Icon has assembled a team focused on an analysis of the wir= eless communications marketplace and its future needs and the building of = joint venture relationships with several international corporations to hel= p develop post-laser holographic technology.

Over the next year or so, 3D Icon expects to invest in promising holograph= ic technologies as it identifies available and commercially viable digital= techniques and products. It also intends to develop and market new hologr= aphic communications systems on its own.

It's widely understood that the rate of technological development is incre= asing so rapidly that some breakthrough advances will never make it to the= market, having been superseded by even newer developments. Today, we have= separate television sets and computers.
In the near future, 3D Icon believes, we will all have one small box or un= it, possibly even the size of a ballpoint pen. As this delivery method bec= omes a reality and more of the world becomes "connected," the marketing op= portunities for such a product will increase substantially. Teleconferenci= ng is a harbinger. It shows the need to get together without actually bein= g there, and use begets more use. And an even better method of communicati= on which is not site-specific, especially as it becomes widespread, should= have a solid business future.

"Here's the bottom line," Mr. Keating concludes. "Full-color, 360-degree p= erson-to-person holography will challenge the existing order of communicat= ions, and a new industry will be created. Capital and human resources are = already shifting into position. In our opinion, it's an exciting, positive= moment in history.

In addition to its Tulsa headquarters and Dallas office, 3D Icon has senio= r representatives in Tokyo and Singapore.

BUSINESS PLAN

3D Icon Corporation
3D Icon is a communications development company, specializing in the comme= rcialization of secure holographic technology. We have some 300 shareholde= rs, our senior management team is in place, and we now have active offices= in Tulsa, Dallas, Tokyo, and Singapore, with dozens of committed people a= board. 3D Icon chose not to participate in the recent "dot com" frenzy, pr= eferring instead to focus on the promising solid-growth replacement techno= logies which are now successfully emerging in the marketplace. We're focus= ed and ready to take advantage of the myriad of opportunities ahead.

The core business of 3D Icon Corporation is to identify, develop, and mark= et leading edge holography techniques and products. Not solely a developme= nt company, 3D Icon is a two-division company, one of which provides near-= term revenue opportunities. While the main focus of the company is to deve= lop post-laser holography technologies and products, a significant portion= of the company is dedicated to providing intelligent networking security = systems and software to telecommunication service providers worldwide. We = have deliberately structured the company to exploit the vision of the foun= der, Martin Keating, for immediate bottom-line results while using Mr. Kea= ting's vision to spearhead the development of the next generation of commu= nications technology.


NEWS RELEASES

Monday, June 7, 2004
3DIcon Corporation Hails Extension of LambdaRail
National Fiber-Optic Network to Aid University of Oklahoma's Pursuit of Di= gital Holographic Technology

Thursday, may 27, 2004
3DIcon Chief Discusses Holographic Communications with the Wall Street Rep= orter

Tuesday, may25, 2004
3DIcon Corporation Offers Vision and Steps to Commercialize Holographic Te= chnology

This profile is not without bias, and is a paid release. Writers and m= ailers have been compensated for the dissemination of company information = on behalf of one or more of the companies mentioned in this release. Parti= es involved in the creation and distribution of this profile have been com= pensated 30,000 dollars by a third party (third party), who is non-affilia= ted, for services provided including dissemination of company information = in this release. PR and other individuals and other creators and mailers o= f this letter will sell all of its original shares during the distribution= of this profile. Parties involved will immediately sell some or any share= s in a profiled company held by profile creators and may have previously s= old shares in a profiled company held by PR Individuals involved. Our Opti= n mailing services for a company may cause the company stock price to incr= ease, in which event involved parties would make a profit when it sells it= s stock in the company. In addition, our selling of a company stock may ha= ve a negative effect on the market price of the stock. The past profiles a= re only the winners






----939672283325913967-- From nv33134@yahoo.com Sat Jul 3 16:37:57 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id QAA19980 for ; Sat, 3 Jul 2004 16:37:56 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1BgrGo-0003I0-8j for eap-archive@ietf.org; Sat, 03 Jul 2004 16:37:58 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1BgrFn-0002uz-00 for eap-archive@ietf.org; Sat, 03 Jul 2004 16:36:56 -0400 Received: from [65.246.255.50] (helo=mx2.foretec.com) by ietf-mx with esmtp (Exim 4.12) id 1BgrEc-0002aE-00; Sat, 03 Jul 2004 16:35:42 -0400 Received: from [211.147.112.90] (helo=ietf.org) by mx2.foretec.com with smtp (Exim 4.24) id 1BgrDn-0002dE-DV; Sat, 03 Jul 2004 16:35:28 -0400 From: "Atualidade Brasileira" To: dnsind-archive@ietf.org Subject: Moral e Economia: relação indispensável . bjj X-Mailer: QUALCOMM Windows Eudora Version 5.2.1 MIME-Version: 1.0 Content-Type: text/html Message-Id: Date: Sat, 03 Jul 2004 16:35:28 -0400 X-Spam-Flag: YES X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: Yes, hits=11.1 required=5.0 tests=FORGED_MUA_EUDORA, FORGED_YAHOO_RCVD,FROM_ENDS_IN_NUMS,HTML_50_60,HTML_FONT_BIG, HTML_MESSAGE,MAILTO_SUBJ_REMOVE,MAILTO_TO_REMOVE,MAILTO_TO_SPAM_ADDR, MIME_HTML_NO_CHARSET,MIME_HTML_ONLY,REMOVE_REMOVAL_2WORD, SUBJ_HAS_SPACES,SUBJ_HAS_UNIQ_ID,SUBJ_ILLEGAL_CHARS autolearn=no version=2.60 X-Spam-Report: * 1.0 SUBJ_HAS_SPACES Subject contains lots of white space * 0.9 FROM_ENDS_IN_NUMS From: ends in numbers * 0.5 REMOVE_REMOVAL_2WORD BODY: List removal information * 0.0 HTML_MESSAGE BODY: HTML included in message * 0.1 HTML_FONT_BIG BODY: HTML has a big font * 0.1 MIME_HTML_ONLY BODY: Message only has text/html MIME parts * 0.2 HTML_50_60 BODY: Message is 50% to 60% HTML * 1.3 MAILTO_SUBJ_REMOVE BODY: mailto URI includes removal text * 0.7 MIME_HTML_NO_CHARSET RAW: Message text in HTML without charset * 1.1 MAILTO_TO_SPAM_ADDR URI: Includes a link to a likely spammer email * 0.0 MAILTO_TO_REMOVE URI: Includes a 'remove' email address * 0.2 SUBJ_HAS_UNIQ_ID Subject contains a unique ID * 2.7 SUBJ_ILLEGAL_CHARS Subject contains too many raw illegal characters * 0.5 FORGED_YAHOO_RCVD 'From' yahoo.com does not match 'Received' headers * 1.9 FORGED_MUA_EUDORA Forged mail pretending to be from Eudora www.msn.com

(ref.:kqi) Última hora! Acaba de chegar à Cidade do Vaticano filial pedido a S.S. João Paulo II: Santo Padre, protegei o Brasil da "esquerda católica"! Clique aqui para receber gratuitamente, por e-mail, o texto completo da carta.

Série Temas Patrulhados (8)

Moral e Economia: relação indispensável

A formação moral de uma nação, com sólidos princípios culturais e religiosos, é a condição para resolver em profundidade os problemas econômicos, afirma Lindenberg

Verdadeira solução

* Para solucionar em profundidade os problemas econômicos, é necessário que os responsáveis pela formação de uma nação - o Clero em primeiro lugar - efetivamente ensinem os princípios morais, culturais e religiosos que são o fundamento e a "conditio sine qua non" da ordem socioeconômica, afirma Adolpho Lindenberg no artigo "Economia e Moral", da Série Temas Patrulhados.

"Patrulhamento"

* Lindenberg é autor do livro "Os católicos e a economia de mercado", em que denuncia uma política com viés esquerdista que censura, marginaliza, "patrulha" ou encobre com um manto de silêncio, opiniões "politicamente incorretas", não afinadas com as ideologias de esquerda.

Progresso material e hábitos virtuosos

* O articulista acrescenta que a riqueza, a estabilidade econômica e o progresso material de um povo dependem não só do respeito ao direito de propriedade e às leis da livre iniciativa, mas de hábitos sociais virtuosos: esforço intenso, sistematizado, capacidade profissional adquirida pelo estudo e trabalho, vontade e força de poupar , morigeração nos gastos e discernimento na condução dos negócios.

Entrelaçamento da moral e a economia

* Infelizmente, esse entrelaçamento de preceitos de ordem moral e de questões econômicas é esquecido pela maioria dos prelados que prega reformas de estrutura, condena a inserção de nossa economia no cenário mundial, censura os lucros das empresas, etc. com o intuito alegado de minorar a sorte dos carentes e marginalizados. Sermões recomendando o hábito de trabalhar metódica e intensamente e a praxe de economizar seriam muito mais úteis do que incitamentos a protestos, greves e invasões, conclui Lindenberg em seu extenso artigo, que oferecemos gratuitamente aos leitores.

040610CN - ConstruNews

Links de opinião

Gostaríamos muito de receber seu seu voto eletrônico sobre a temática abordada neste e-mail, incluindo, se possível, conhecer sua valiosa opinião:

Concordo - Discrepo - EmTermos

Links gratuitos (e-Book e outros artigos):

* Para receber gratuitamente, por e-mail, o texto completo deste artigo, clique em: EsteArtigoCompletoGratuitamente(No.8)

E-BookGratuitoBr (em formato Word, com 11 artigos de Lindenberg)

IntroduçãoGratuitaDoLivro (em formato Word, Introdução do livro "Os católicos e a economia de mercado")

ArtigosAnteriores - ProximosArtigos

LinksGratuitos-TODOS (para receber, num só e-mail, todos os links gratuitos acima)

Outros links

EnEspañol - LinkToFreeTranslator

Lindenberg:DesejoAdquirirLivro (receberá instruções sobre como poder adquirir o livro no Brasil)

Remover Caso já tiver efetuado anteriormente, sem sucesso, o pedido de remoção, lhe solicitamos o enorme favor de nos enviar na íntegra o denominado "Código Fonte da Mensagem". Assim poderemos verificar a qual e-mail, exatamente, lhe escrevemos, e tirá-lo imediatamente do Address Book. Instruções para chegar até o "Código Fonte": no Outlook Express clique acima da mensagem com o botão direito do "mouse", depois em "Propriedades", "Detalhes" e "Código Fonte". Solicitamos sinceras desculpas pelos inconvenientes ocasionados.

A difusão desta mensagem --com o intuito de promover um debate cultural, respeitoso de idéias-- é de exclusiva responsabilidade da ConstruNews. Telefone de contato: (11) 9252 - 7873

 

 

 

 

From eap-admin@frascone.com Mon Jul 5 15:59:31 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA14925 for ; Mon, 5 Jul 2004 15:59:31 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 22F701FEFF; Mon, 5 Jul 2004 15:45:29 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A470420EBC; Mon, 5 Jul 2004 15:45:25 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8C87A20EBC for ; Mon, 5 Jul 2004 15:44:53 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 9D38B1FEFF for ; Mon, 5 Jul 2004 15:44:51 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i65JvTI11655 for ; Mon, 5 Jul 2004 12:57:29 -0700 From: Bernard Aboba To: eap@frascone.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Resolution to Issue 243? Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 5 Jul 2004 12:57:29 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) At this point, publication of draft-walker-ieee802-req is being held up, pending resolution of Issue 243: Clarification of State Synchronization. Do we have a proposed resolution of this issue, or at least proposed text? _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 5 17:21:22 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id RAA17629 for ; Mon, 5 Jul 2004 17:21:22 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B73AB20EE8; Mon, 5 Jul 2004 17:07:29 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id CCDF920EE2; Mon, 5 Jul 2004 17:07:26 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id EF8FE20EE3 for ; Mon, 5 Jul 2004 17:06:53 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id B90EA20EE2 for ; Mon, 5 Jul 2004 17:06:51 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i65LJTS16449; Mon, 5 Jul 2004 14:19:29 -0700 From: Bernard Aboba To: eap@frascone.com Cc: Jari Arkko , ashwinp@microsoft.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Re: EAP Issue #221 Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 5 Jul 2004 14:19:29 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Jari Arkko wrote: "But in any case, even that might lead to problems. There might be a number of proprietary ways to key a standard application FOO. I think Specification Required would be appropriate. Maybe even something stronger." How about IETF consensus? Here is the proposed text of the IANA section: 6. IANA Considerations This section provides guidance to the Internet Assigned Numbers Authority (IANA) regarding registration of values related to EAP key management, in accordance with BCP 26, [RFC2434]. The following terms are used here with the meanings defined in BCP 26: "name space", "assigned value", "registration". The following policies are used here with the meanings defined in BCP 26: "Private Use", "First Come First Served", "Expert Review", "Specification Required", "IETF Consensus", "Standards Action". For registration requests where a Designated Expert should be consulted, the responsible IESG area director should appoint the Designated Expert. The intention is that any allocation will be accompanied by a published RFC. But in order to allow for the allocation of values prior to the RFC being approved for publication, the Designated Expert can approve allocations once it seems clear that an RFC will be published. The Designated expert will post a request to the EAP WG mailing list (or a successor designated by the Area Director) for comment and review, including an Internet-Draft. Before a period of 30 days has passed, the Designated Expert will either approve or deny the registration request and publish a notice of the decision to the EAP WG mailing list or its successor, as well as informing IANA. A denial notice must be justified by an explanation and, in the cases where it is possible, concrete suggestions on how the request can be modified so as to become acceptable. This document introduces a new name space for "key labels". Key labels are ASCII strings and are assigned via IETF Consensus. It is expected that key label specifications will include the following information: o A description of the application o The key label to be used o How TSKs will be derived from the AMSK and how they will be used o If application specific data is used, what it is and how it is maintained o Where the AMSKs or TSKs will be used and how they are communicated if necessary. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 5 18:25:27 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id SAA21096 for ; Mon, 5 Jul 2004 18:25:26 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3C4791FF1A; Mon, 5 Jul 2004 18:11:31 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D977120238; Mon, 5 Jul 2004 18:11:27 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5535F20238 for ; Mon, 5 Jul 2004 18:10:53 -0400 (EDT) Received: from sj-iport-5.cisco.com (sj-iport-5.cisco.com [171.68.10.87]) by mail.frascone.com (Postfix) with ESMTP id 9412C1FF1A for ; Mon, 5 Jul 2004 18:10:51 -0400 (EDT) Received: from sj-core-3.cisco.com (171.68.223.137) by sj-iport-5.cisco.com with ESMTP; 05 Jul 2004 15:24:58 -0700 X-BrightmailFiltered: true Received: from E2K-SEA-XCH2.sea-alpha.cisco.com (e2k-sea-xch2.cisco.com [10.93.132.68]) by sj-core-3.cisco.com (8.12.10/8.12.6) with ESMTP id i65MOdRs001518; Mon, 5 Jul 2004 15:24:40 -0700 (PDT) Received: from jsaloweyw2k01 ([10.82.240.216]) by E2K-SEA-XCH2.sea-alpha.cisco.com with Microsoft SMTPSVC(5.0.2195.6713); Mon, 5 Jul 2004 15:32:13 -0700 From: "Joseph Salowey" To: "'Bernard Aboba'" , Cc: "'Jari Arkko'" , Subject: RE: [eap] Re: EAP Issue #221 Message-ID: <00de01c462df$029e14c0$0300000a@amer.cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.5709 In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal X-OriginalArrivalTime: 05 Jul 2004 22:32:13.0274 (UTC) FILETIME=[EAFAA3A0:01C462DF] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 5 Jul 2004 15:25:41 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Part of the point of specifying a standard key derivation is to = eliminate the impact of one application on another. I don't think that IETF = consensus should be required. I do think that a specification is highly = desirable. =20 Joe eap-admin@frascone.com wrote: > Jari Arkko wrote: >=20 > "But in any case, even that might lead to problems. > There might be a number of proprietary ways to key > a standard application FOO. >=20 > I think Specification Required would be appropriate. > Maybe even something stronger." >=20 > How about IETF consensus? Here is the proposed text of the > IANA section: 6. IANA Considerations >=20 > This section provides guidance to the Internet Assigned Numbers > Authority (IANA) regarding registration of values related > to EAP key > management, in accordance with BCP 26, [RFC2434]. >=20 > The following terms are used here with the meanings defined in BCP > 26: "name space", "assigned value", "registration". >=20 > The following policies are used here with the meanings > defined in BCP > 26: "Private Use", "First Come First Served", "Expert Review", > "Specification Required", "IETF Consensus", "Standards Action". >=20 > For registration requests where a Designated Expert should be > consulted, the responsible IESG area director should appoint the > Designated Expert. The intention is that any allocation will be > accompanied by a published RFC. But in order to allow for the > allocation of values prior to the RFC being approved for > publication, the Designated Expert can approve allocations once it > seems clear that an RFC will be published. The Designated expert > will post a request to the EAP WG mailing list (or a successor > designated by the > Area Director) for comment and review, including an Internet-Draft. > Before a period of 30 days has passed, the Designated Expert will > either approve or deny the registration request and > publish a notice > of the decision to the EAP WG mailing list or its > successor, as well > as informing IANA. A denial notice must be justified by an > explanation and, in the cases where it is possible, concrete > suggestions on how the request can be modified so as to become =20 > acceptable.=20 >=20 > This document introduces a new name space for "key labels". Key > labels are ASCII strings and are assigned via IETF > Consensus. It is > expected that key label specifications will include the following=20 > information:=20 >=20 > o A description of the application > o The key label to be used > o How TSKs will be derived from the AMSK and how they > will be used > o If application specific data is used, what it is > and how it is > maintained > o Where the AMSKs or TSKs will be used and how they are > communicated if necessary. >=20 > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 5 19:52:24 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id TAA24299 for ; Mon, 5 Jul 2004 19:52:23 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id EC1651FF5C; Mon, 5 Jul 2004 19:38:30 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 016A420323; Mon, 5 Jul 2004 19:38:27 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 97B5E20323 for ; Mon, 5 Jul 2004 19:37:18 -0400 (EDT) Received: from sj-iport-2.cisco.com (sj-iport-2-in.cisco.com [171.71.176.71]) by mail.frascone.com (Postfix) with ESMTP id DDE911FF5C for ; Mon, 5 Jul 2004 19:37:16 -0400 (EDT) Received: from sj-core-5.cisco.com (171.71.177.238) by sj-iport-2.cisco.com with ESMTP; 05 Jul 2004 16:51:17 -0700 Received: from E2K-SEA-XCH2.sea-alpha.cisco.com (e2k-sea-xch2.cisco.com [10.93.132.68]) by sj-core-5.cisco.com (8.12.10/8.12.6) with ESMTP id i65Np5gI012291; Mon, 5 Jul 2004 16:51:05 -0700 (PDT) Received: from jsaloweyw2k01 ([10.82.240.216]) by E2K-SEA-XCH2.sea-alpha.cisco.com with Microsoft SMTPSVC(5.0.2195.6713); Mon, 5 Jul 2004 16:58:39 -0700 From: "Joseph Salowey" To: "'Bernard Aboba'" , Subject: RE: [eap] Resolution to Issue 243? Message-ID: <00e101c462eb$15df0330$0300000a@amer.cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.5709 In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal X-OriginalArrivalTime: 05 Jul 2004 23:58:39.0557 (UTC) FILETIME=[FE3E9F50:01C462EB] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 5 Jul 2004 16:52:08 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit I think the state synchronization should be in relation to the state of the authentication protocol and not to things that happen external to the authentication protocol such as the EAP method negotiation that happens before the method starts. I don't currently see a requirement to authenticate EAP protocol numbers as they are outside the actual authentication protocol. Anything that is internal the method must be synchronized including the protocol version number. The two sides must agree upon the data exchanged and established within the authentication protocol. Joe eap-admin@frascone.com wrote: > At this point, publication of draft-walker-ieee802-req is > being held up, pending resolution of Issue 243: Clarification of > State Synchronization. > > Do we have a proposed resolution of this issue, or at least > proposed text? _______________________________________________ eap > mailing list eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From rcdlhyntoig@obsidiana.com.ar Wed Jul 7 04:09:36 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id EAA01243 for ; Wed, 7 Jul 2004 04:09:36 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1Bi7Um-0004cv-DP for eap-archive@ietf.org; Wed, 07 Jul 2004 04:09:36 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1Bi7RY-0003Vr-00 for eap-archive@ietf.org; Wed, 07 Jul 2004 04:06:17 -0400 Received: from [65.246.255.50] (helo=mx2.foretec.com) by ietf-mx with esmtp (Exim 4.12) id 1Bi7PJ-0002iG-00; Wed, 07 Jul 2004 04:03:57 -0400 Received: from h001095a9ce1d.ne.client2.attbi.com ([24.61.22.145] helo=24.61.22.145) by mx2.foretec.com with smtp (Exim 4.24) id 1Bi7PI-0000cN-Qi; Wed, 07 Jul 2004 04:03:58 -0400 Received: from 109.106.175.191 (8.12.8/8.12.8) by 24.61.22.145 with xetnkjq; Wed, 07 Jul 2004 03:06:45 -0600 Message-ID: <90926164431.1065853287338976827710@waflcbr> From: "Annmarie Delacruz" To: dhksggnjkgshwvm@ietf.org, ietf-info@ietf.org, agma-admin@ietf.org, ipv6-admin@ietf.org, l3vpn@ietf.org, olicy@ietf.org, eap-archive@ietf.org, dhcwg-admin@ietf.org, mailman-admin@ietf.org Subject: Re: But the net, devil Date: Wed, 07 Jul 2004 03:05:46 -0600 Organization: craeybufb mqzoupjhu Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Spam: Not detected X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: No, hits=1.2 required=5.0 tests=BIZ_TLD,HTML_MESSAGE, MIME_HTML_ONLY,RCVD_NUMERIC_HELO autolearn=no version=2.60 Content-Transfer-Encoding: quoted-printable Good Day,

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hydrospheremucosa instrumenterratic eliotburton onlookerpriorbite impartation curvatureconjuncturetentacle ----84978768296619570-- From eap-admin@frascone.com Fri Jul 9 10:26:17 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA00891 for ; Fri, 9 Jul 2004 10:26:17 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id C7A132069B; Fri, 9 Jul 2004 10:12:19 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 920AD2076B; Fri, 9 Jul 2004 10:12:13 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 17650202E7 for ; Tue, 6 Jul 2004 18:48:27 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 0AECB202A0 for ; Tue, 6 Jul 2004 18:48:25 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i66N0w208493 for ; Tue, 6 Jul 2004 16:00:59 -0700 From: Bernard Aboba To: eap@frascone.com In-Reply-To: <20040706160002.26036.84700.Mailman@xavier> Message-ID: References: <20040706160002.26036.84700.Mailman@xavier> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Re: Issue 243: Clarification of State Synchronization Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 6 Jul 2004 16:00:58 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Joe Salowey wrote: > I think the state synchronization should be in relation to the state of the > authentication protocol and not to things that happen external to the > authentication protocol such as the EAP method negotiation that happens > before the method starts. I don't currently see a requirement to > authenticate EAP protocol numbers as they are outside the actual > authentication protocol. > > Anything that is internal the method must be synchronized including the > protocol version number. The two sides must agree upon the data exchanged > and established within the authentication protocol. > > Joe OK. How about this? [4] Synchronization of state. The EAP method state of the EAP peer and server must be synchronized when the EAP method completes successfully. This includes the internal state of the authentication protocol but does not apply to state external to the EAP method, such as the EAP Type used or the negotiation occuring prior to initiation of the EAP method. The exact state attributes that are shared may vary from method to method but typically include the method version number, what credentials were presented and accepted by both parties, what cryptographic keys are shared and what EAP method specific attributes were negotiated, such as ciphersuites and limitations of usage on all protocol state. Both parties must be able to distinguish this instance of the protocol from all other instances of the protocol and they must share the same view of which state attributes are public and which are private to the two parties alone. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 9 10:36:00 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA02714 for ; Fri, 9 Jul 2004 10:35:59 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 7F1CF2123A; Fri, 9 Jul 2004 10:19:23 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E22D32125D; Fri, 9 Jul 2004 10:19:16 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3435D20C3A for ; Wed, 7 Jul 2004 09:37:13 -0400 (EDT) Received: from albatross.ericsson.se (albatross.ericsson.se [193.180.251.49]) by mail.frascone.com (Postfix) with ESMTP id 9BF7020C2E for ; Wed, 7 Jul 2004 09:37:10 -0400 (EDT) Received: from esealmw143.al.sw.ericsson.se ([153.88.254.118]) by albatross.ericsson.se (8.12.10/8.12.10/WIREfire-1.8b) with ESMTP id i67Dp0WR019501 for ; Wed, 7 Jul 2004 15:51:03 +0200 (MEST) Received: from esealnt610.al.sw.ericsson.se ([153.88.254.120]) by esealmw143.al.sw.ericsson.se with Microsoft SMTPSVC(6.0.3790.0); Wed, 7 Jul 2004 15:50:59 +0200 Received: by esealnt610.al.sw.ericsson.se with Internet Mail Service (5.5.2657.72) id <3236F1D7>; Wed, 7 Jul 2004 15:50:59 +0200 Message-ID: <4E85E49D1F0CBF4F96EA08E335750D7D0BBC6E55@Esealnt877.al.sw.ericsson.se> From: =?iso-8859-1?Q?Tomas_Goldbeck-L=F6we_=28KI/EAB=29?= To: "'farid.adrangi@intel.com'" , "'eap@frascone.com'" MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-OriginalArrivalTime: 07 Jul 2004 13:50:59.0968 (UTC) FILETIME=[6F765800:01C46429] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] some comments to draft-adrangi-eap-network-discovery-and-selectio n-01.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 7 Jul 2004 15:47:35 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Hi Farid and all, Reading the new version of the draft about EAP based network discovery = and selection. Sending this email to let you know that I'm quite happy = with draft as it looks now, and I believe it will fit into the = 3GPP-WLAN architecture. Some questions though for my clarification: 1. Page 7, Decorated NAI; The text talks about that "It may include = information for several Mediating Networks to be indicated on the route = to the Home Service Network." However, I don't seen anywhere else in the draft support when the = Decorated NAI includes multiple MN's. I assume we then use the syntax = 'mediating-net-2!home-realm!username@mediating-net-1'. Is this correct? Also, I my understanding we then must specify that a AAA supporting = this functionality only moves the first realm in the username (i.e. if = the decorated NAI looks like = 'mediating-net-2!home-realm!username@mediating-net-1' the AAA in = mediating-net-1 must "re-shuffle" the NAI to = 'home-realm!username@mediating-net-2') before the packet is passed on. = Or am I missing something? 2. Solution option 1 and 2 includes the con that "It MAY introduce a = contention problem if space in the Type-Data field has already been = used up for other purposes. " Can you explain why this is not true also for option 3? and some editorials: The following sections/paragraphs includes strange characters both on = my screen and in my printout: a. Page 2, Introduction, second paragraph; the sentence in the = parenthesis starting with "(i.e., =F6Roaming Partner=F6 ..." b. Page 2, Section 1.1; "(referred to as the =F6EAP over RADIUS=F6 [4]) = " c. Page 7, Access Point; "=F6A station that ..." RADIUS Server; "=F6This is a server ..." Service Set ID; "=F6an identifier attached ..." d. Page 13, "[Option 3] =FB Use a subsequent ..." e. Page 17, Section 2.3, NAI Decoration; lots of funny characters... f. Reference [10]; I believe it is missing the file name and 'work in = progress', no? Kind regards, --> Tomas _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 9 10:40:18 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA02974 for ; Fri, 9 Jul 2004 10:40:18 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D6AC021311; Fri, 9 Jul 2004 10:23:46 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4832321306; Fri, 9 Jul 2004 10:23:41 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3F4712104B for ; Thu, 8 Jul 2004 10:24:58 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id 81CF120248 for ; Thu, 8 Jul 2004 10:24:56 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i68EcmT1021550; Thu, 8 Jul 2004 10:38:51 -0400 (EDT) From: Nick Petroni To: Florent Bersani Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 247] Comments on EAP state machine v4 In-Reply-To: <40DC2755.10700@rd.francetelecom.fr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 8 Jul 2004 10:38:48 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Florent and group, Sorry for the long delay in my responses. Hopefully we can get these issues resolved this week or next. Here are my suggestions for addressing Issue 247. I would like feedback, particularly on the last comment where I am unsure the best way to resolve the issue. Regards, nick Comment #1 - Editorial In section 3.2 do the following: - remove definition of '+' - remove definition of '-' - remove definition of '<' - remove definition of '>=' - add definition of '++' as follows: "++ Increment the preceding integer operator by 1" - add definition of '<=' "<= Less than or equal to. Evaluates to TRUE if the value of the expression to the left of the operator is either less than or equal to the value of the expression to the right." Comment #2 - Editorial In sections 4.1.1 and 5.1.1 add the following to the definition of portEnabled: "To avoid unnecessary resets, the lower layer may dampen link down indications when it believes that the link is only temporarily down and that it will soon be back up (see RFC 3748, section 7.12). In this case, portEnabled may not always be equal to the the "link up" flag of the lower layer." Comment #3 - Editorial - In Figure 3 add the following to the INITIALIZE state: "lastId = NONE" - In section 4.3.1 change "lastId (integer)" to "lastId (integer or NONE)" Comment #4 - Editorial In section 4.1.1 change definition of idleWhile to: "Outside timer used to indicate how long remains before the peer will timeout while waiting for a valid request." Comment #7 - Editorial -In section 4.4 add the following definition: "m.buildResp() Method procedure to create a response message" -In sections 4.4, 5.4, and 6.4 add the following before the list of procedures: "NOTE: For method procedures, the method uses its internal state in addition to the information provided by the EAP layer. The only arguments that are explicitly shown as inputs to the procedures are those provided to the method by EAP. Those inputs provided by the method's internal state remain implicit." - For all procedures, add a sentence to the definition which defines the *type* of the return value. Comment #8 - Editorial - In section 4.4 change "Also checks that the length field is not longer than the received packet." to "In case of a parsing error (e.g. the length field is longer than the received packet), rxReq, rxSuccess, and rxFailure will all be set to FALSE. The values of reqId and reqMethod may be undefined as a result. " - In section 5.4 change "Also checks that the length field is not longer than the received packet." to "In case of a parsing error (e.g. the length field is longer than the received packet), rxResp will be set to FALSE. The values of respId and respMethod may be undefined as a result." Comment #11 - Editorial - In section 5.1.2, add the following definition: "eapTimeout (boolean) Set to TRUE in the TIMEOUT_FAILURE state if the authenticator has reached its maximum number of retransmissions without receiving a response." Comment #13 - Editorial No changes Comment #15 - Editorial No changes Comment #16 - Editorial No changes Comment #18 - Editorial Request advice on how to fix this from the group. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 9 10:43:49 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA03219 for ; Fri, 9 Jul 2004 10:43:48 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 403FA2130A; Fri, 9 Jul 2004 10:23:55 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3E21221319; Fri, 9 Jul 2004 10:23:50 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 77E6620B4E for ; Thu, 8 Jul 2004 10:55:26 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id CCDD420321 for ; Thu, 8 Jul 2004 10:55:24 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i68F9KT1022181; Thu, 8 Jul 2004 11:09:20 -0400 (EDT) From: Nick Petroni To: Florent Bersani Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 250] Two more issues from the state machine In-Reply-To: <40DC5D50.9060303@rd.francetelecom.fr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 8 Jul 2004 11:09:20 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > Issue #TBC > > Submitter name: Florent Bersani > > Submitter email address: florent.bersani@rd.francetelecom.fr > > Date first submitted: 06/25/2004 > > Document: Document Requiring change State Machine > > Comment type: E > > Priority: '1' Should fix > > Rationale/Explanation of issue: > allowMethod is not defined in the document IINM but is used in figure 3 > > Requested change: define it I propose to add the following to section 4.4 "allowMethod() Determine if it is allowable for the peer to perform the proposd method. This decision may be based on policy and/or implementation support for the proposed method." _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 9 10:46:08 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA03392 for ; Fri, 9 Jul 2004 10:46:07 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 968A12130F; Fri, 9 Jul 2004 10:24:03 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 399A721319; Fri, 9 Jul 2004 10:23:57 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6A63B20C82 for ; Thu, 8 Jul 2004 11:09:43 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id 8CF5820321 for ; Thu, 8 Jul 2004 11:09:41 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i68FNWT1022474; Thu, 8 Jul 2004 11:23:32 -0400 (EDT) From: Nick Petroni To: Suresh Babu Cc: , Subject: Re: [eap] [Issue 252] Query regarding currentId in eap-statemachine-03 In-Reply-To: <20040624124253.45692.qmail@web51405.mail.yahoo.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 8 Jul 2004 11:23:31 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Suresh, IMHO this is not a problem with the state machine. The situation you have described, whereby only two values are used for the identifier, is completely allowable in EAP. Section 4.1 of RFC 3748 states the following: Identifier The Identifier field is one octet. The Identifier field MUST be the same if a Request packet is retransmitted due to a timeout while waiting for a Response. Any new (non-retransmission) Requests MUST modify the Identifier field. The Identifier field of the Response MUST match that of the currently outstanding Request. An authenticator receiving a Response whose Identifier value does not match that of the currently outstanding Request MUST silently discard the Response. In order to avoid confusion between new Requests and retransmissions, the Identifier value chosen for each new Request need only be different from the previous Request, but need not be unique within the conversation. One way to achieve this is to start the Identifier at an initial value and increment it for each new Request. Initializing the first Identifier with a random number rather than starting from zero is recommended, since it makes sequence attacks somewhat more difficult. Since the Identifier space is unique to each session, authenticators are not restricted to only 256 simultaneous authentication conversations. Similarly, with re-authentication, an EAP conversation might continue over a long period of time, and is not limited to only 256 roundtrips. As you can see, each message simply needs a different Identifier from the previous message, so alternation is quite ok. Furthermore, the situation you have described is the running of multiple instances of the EAP state machine for the purposes of 802.1X reauthentication. Technically these values repeat, but only among different "runs" of EAP. The range of 0-255 the POSSIBLE values of the identifier field, you are explicitly not guaranteed to use all values or prevent collision among runs. Unless I am missing something in your question I would like to propose we reject the comment as an Issue with the SM. Best, nick Nick L. Petroni, Jr. Graduate Student, Computer Science Maryland Information Systems Security Lab University of Maryland http://www.cs.umd.edu/~npetroni On Thu, 24 Jun 2004, Suresh Babu wrote: > > Hi friends, > > I had the follwing doubt. > > When starting(initializing) the state machine,the currentid is initialized to NONE. > After successful reauthentication in MD5 case it goes to 1, and sends a success packet > with id=1, When the reAuthWhen timer expires in 802.1x layer, it reaches RESTART state and sets eapRestart to TRUE, So to move to CONNCTING state we had make eapRestart as FALSE, This is set by eap-statemachine. so again currentId becomes NONE. > So under what conditions currentid can have 0-255 values, here i`m able get only > 0-1. How to get around of this problem? > Thanx in Advance, > Suresh Babu > > > --------------------------------- > Do you Yahoo!? > New and Improved Yahoo! Mail - Send 10MB messages! _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 9 10:47:40 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA03469 for ; Fri, 9 Jul 2004 10:47:39 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 429D021335; Fri, 9 Jul 2004 10:24:21 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id BC9912132F; Fri, 9 Jul 2004 10:24:15 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 9100420C81 for ; Thu, 8 Jul 2004 12:29:12 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id C2A741FF6B for ; Thu, 8 Jul 2004 12:29:10 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id D6BED89844; Thu, 8 Jul 2004 19:43:04 +0300 (EEST) Message-ID: <40ED7873.4080103@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Adrangi, Farid" , "eap@frascone.com" Cc: =?ISO-8859-1?Q?=22Tomas_Goldbeck-L=F6we_=28KI/EAB=29=22?= Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] FW: some comments to draft-adrangi-eap-network-discovery-and-selection-01.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 08 Jul 2004 19:38:11 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 8bit (I sending this e-mail on behalf of Tomas Goldbeck-Lowe who has reviewed Farid's draft, but his posting to the list failed. Sorry if you get this twice.) Hi Farid and all, > > Reading the new version of the draft about EAP based network > discovery and selection. Sending this email to let you know > that I'm quite happy with draft as it looks now, and I > believe it will fit into the 3GPP-WLAN architecture. > > > Some questions though for my clarification: > 1. Page 7, Decorated NAI; The text talks about that "It may > include information for several Mediating Networks to be > indicated on the route to the Home Service Network." > However, I don't seen anywhere else in the draft support when > the Decorated NAI includes multiple MN's. I assume we then > use the syntax > 'mediating-net-2!home-realm!username@mediating-net-1'. Is > this correct? > Also, I my understanding we then must specify that a AAA > supporting this functionality only moves the first realm in > the username (i.e. if the decorated NAI looks like > 'mediating-net-2!home-realm!username@mediating-net-1' the AAA > in mediating-net-1 must "re-shuffle" the NAI to > 'home-realm!username@mediating-net-2') before the packet is > passed on. Or am I missing something? > > 2. Solution option 1 and 2 includes the con that "It MAY > introduce a contention problem if space in the Type-Data > field has already been used up for other purposes. " > Can you explain why this is not true also for option 3? > > > and some editorials: > The following sections/paragraphs includes strange characters > both on my screen and in my printout: > a. Page 2, Introduction, second paragraph; the sentence in > the parenthesis starting with "(i.e., öRoaming Partnerö ..." > > b. Page 2, Section 1.1; "(referred to as the öEAP over RADIUSö [4]) " > > c. Page 7, Access Point; "öA station that ..." > RADIUS Server; "öThis is a server ..." > Service Set ID; "öan identifier attached ..." > > d. Page 13, "[Option 3] û Use a subsequent ..." > > e. Page 17, Section 2.3, NAI Decoration; lots of funny characters... > > f. Reference [10]; I believe it is missing the file name and > 'work in progress', no? > > > Kind regards, > --> Tomas _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 9 10:48:45 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA03529 for ; Fri, 9 Jul 2004 10:48:44 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 244E921344; Fri, 9 Jul 2004 10:24:39 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A9CD021337; Fri, 9 Jul 2004 10:24:36 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 046B72106A for ; Thu, 8 Jul 2004 12:50:57 -0400 (EDT) Received: from hermes.hd.intel.com (fmr09.intel.com [192.52.57.35]) by mail.frascone.com (Postfix) with ESMTP id 19C9921062 for ; Thu, 8 Jul 2004 12:50:56 -0400 (EDT) Received: from petasus.hd.intel.com (petasus.hd.intel.com [10.127.45.3]) by hermes.hd.intel.com (8.12.9-20030918-01/8.12.9/d: large-outer.mc,v 1.9 2004/01/09 00:55:23 root Exp $) with ESMTP id i68H4nLk022024; Thu, 8 Jul 2004 17:04:49 GMT Received: from orsmsxvs040.jf.intel.com (orsmsxvs040.jf.intel.com [192.168.65.206]) by petasus.hd.intel.com (8.12.9-20030918-01/8.12.9/d: large-inner.mc,v 1.10 2004/03/01 19:22:27 root Exp $) with SMTP id i68H4cQX010840; Thu, 8 Jul 2004 17:04:41 GMT Received: from orsmsx331.amr.corp.intel.com ([192.168.65.56]) by orsmsxvs040.jf.intel.com (SAVSMTP 3.1.2.35) with SMTP id M2004070810043830636 ; Thu, 08 Jul 2004 10:04:38 -0700 Received: from orsmsx408.amr.corp.intel.com ([192.168.65.52]) by orsmsx331.amr.corp.intel.com with Microsoft SMTPSVC(6.0.3790.0); Thu, 8 Jul 2004 10:04:38 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message-ID: Thread-Topic: some comments to draft-adrangi-eap-network-discovery-and-selection-01.txt Thread-Index: AcRlCraLYowVTEBhSo+02bg1CyDPxgAAh5Bg From: "Adrangi, Farid" To: =?iso-8859-1?Q?=22Tomas_Goldbeck-L=F6we_=5C=28KI/EAB=5C=29=22?= Cc: , X-OriginalArrivalTime: 08 Jul 2004 17:04:38.0478 (UTC) FILETIME=[A70C06E0:01C4650D] X-Scanned-By: MIMEDefang 2.31 (www . roaringpenguin . com / mimedefang) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] RE: some comments to draft-adrangi-eap-network-discovery-and-selection-01.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 8 Jul 2004 10:04:37 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Thanks Jari for reposting this mail. Hello Tomas, Thanks for your comments and the issues that you pointed out. After = reading through your mail, I believe that all of your comments and = issues have been addressed in the latest version of the draft : = http://www.ietf.org/internet-drafts/draft-adrangi-eap-network-discovery-0= 1.txt . Could you please confirm that? Please let me know if you have = any questions. BR, Farid t >=20 >=20 >=20 > (I sending this e-mail on behalf of Tomas Goldbeck-Lowe who > has reviewed Farid's draft, but his posting to the list > failed. Sorry if you get this twice.) >=20 > Hi Farid and all, > > > > Reading the new version of the draft about EAP based network > > discovery and selection. Sending this email to let you know > > that I'm quite happy with draft as it looks now, and I > > believe it will fit into the 3GPP-WLAN architecture. > > > > > > Some questions though for my clarification: > > 1. Page 7, Decorated NAI; The text talks about that "It may > > include information for several Mediating Networks to be > > indicated on the route to the Home Service Network." > > However, I don't seen anywhere else in the draft support when > > the Decorated NAI includes multiple MN's. I assume we then > > use the syntax > > 'mediating-net-2!home-realm!username@mediating-net-1'. Is > > this correct? > > Also, I my understanding we then must specify that a AAA > > supporting this functionality only moves the first realm in > > the username (i.e. if the decorated NAI looks like > > 'mediating-net-2!home-realm!username@mediating-net-1' the AAA > > in mediating-net-1 must "re-shuffle" the NAI to > > 'home-realm!username@mediating-net-2') before the packet is > > passed on. Or am I missing something? > > > > 2. Solution option 1 and 2 includes the con that "It MAY > > introduce a contention problem if space in the Type-Data > > field has already been used up for other purposes. " > > Can you explain why this is not true also for option 3? > > > > > > and some editorials: > > The following sections/paragraphs includes strange characters > > both on my screen and in my printout: > > a. Page 2, Introduction, second paragraph; the sentence in > > the parenthesis starting with "(i.e., =F6Roaming Partner=F6 ..." > > > > b. Page 2, Section 1.1; "(referred to as the =F6EAP over=20 > RADIUS=F6 [4]) " > > > > c. Page 7, Access Point; "=F6A station that ..." > > RADIUS Server; "=F6This is a server ..." > > Service Set ID; "=F6an identifier attached ..." > > > > d. Page 13, "[Option 3] =FB Use a subsequent ..." > > > > e. Page 17, Section 2.3, NAI Decoration; lots of funny=20 > characters... > > > > f. Reference [10]; I believe it is missing the file name and > > 'work in progress', no? > > > > > > Kind regards, > > --> Tomas >=20 _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 9 10:56:15 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA03901 for ; Fri, 9 Jul 2004 10:56:14 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 110D7213AA; Fri, 9 Jul 2004 10:27:55 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D4C7D213A2; Fri, 9 Jul 2004 10:27:48 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B76FC2110B for ; Fri, 9 Jul 2004 00:33:31 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 11172210FF for ; Fri, 9 Jul 2004 00:33:27 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i694jll32114 for ; Thu, 8 Jul 2004 21:45:50 -0700 From: Bernard Aboba To: eap@frascone.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Proposed Resolution to Issue 243: State Synchronization Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 8 Jul 2004 21:45:47 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) The proposed resolution is to change clause [4] of Section 2.2 to the following: [4] Synchronization of state. The EAP method state of the EAP peer and server must be synchronized when the EAP method completes successfully. This includes the internal state of the authentication protocol but not the state external to the EAP method, such as the negotiation occuring prior to initiation of the EAP method. The exact state attributes that are shared may vary from method to method but typically include the method version number, what credentials were presented and accepted by both parties, what cryptographic keys are shared and what EAP method specific attributes were negotiated, such as ciphersuites and limitations of usage on all protocol state. Both parties must be able to distinguish this instance of the protocol from all other instances of the protocol and they must share the same view of which state attributes are public and which are private to the two parties alone. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 9 10:58:03 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA03997 for ; Fri, 9 Jul 2004 10:58:02 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8E099213B6; Fri, 9 Jul 2004 10:28:25 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5E3AD213BA; Fri, 9 Jul 2004 10:28:19 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 0ED7B21146 for ; Fri, 9 Jul 2004 03:25:54 -0400 (EDT) Received: from p-mail1.rd.francetelecom.com (p-mail1.rd.francetelecom.com [195.101.245.15]) by mail.frascone.com (Postfix) with ESMTP id 1177F21140 for ; Fri, 9 Jul 2004 03:25:52 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 9 Jul 2004 09:39:41 +0200 Received: from rd.francetelecom.fr ([10.193.167.43]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Fri, 9 Jul 2004 09:39:39 +0200 Message-ID: <40EE4BC2.2050405@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 250] Two more issues from the state machine References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Jul 2004 07:39:39.0519 (UTC) FILETIME=[E41B20F0:01C46587] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 09 Jul 2004 09:39:46 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Hi Nick, Nick Petroni wrote: >>Issue #TBC >> >>Submitter name: Florent Bersani >> >>Submitter email address: florent.bersani@rd.francetelecom.fr >> >>Date first submitted: 06/25/2004 >> >>Document: Document Requiring change State Machine >> >>Comment type: E >> >>Priority: '1' Should fix >> >>Rationale/Explanation of issue: >>allowMethod is not defined in the document IINM but is used in figure 3 >> >>Requested change: define it >> >> > >I propose to add the following to section 4.4 > >"allowMethod() > Determine if it is allowable for the peer to perform the proposd > method. This decision may be based on policy and/or implementation > support for the proposed method." > > Looks good to me. I should have proposed some text :-( - thanks for doing it! BR, Florent _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 9 10:58:58 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA04084 for ; Fri, 9 Jul 2004 10:58:57 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2007B213B5; Fri, 9 Jul 2004 10:28:39 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 0F005213C2; Fri, 9 Jul 2004 10:28:32 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 95E7921146 for ; Fri, 9 Jul 2004 03:31:52 -0400 (EDT) Received: from p-mail2.rd.francetelecom.com (p-mail2.rd.francetelecom.com [195.101.245.16]) by mail.frascone.com (Postfix) with ESMTP id 987F120313 for ; Fri, 9 Jul 2004 03:31:50 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp1.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 9 Jul 2004 09:45:43 +0200 Received: from rd.francetelecom.fr ([10.193.167.43]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Fri, 9 Jul 2004 09:45:42 +0200 Message-ID: <40EE4D2D.3070601@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 247] Comments on EAP state machine v4 References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Jul 2004 07:45:42.0450 (UTC) FILETIME=[BC6E0120:01C46588] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 09 Jul 2004 09:45:49 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Hi Nick, All of your proposed resolutions look great to me. Thanks a lot. Florent, hope the group will give some feedback on the last (minor one) P.S: BTW, I hope you had a nice time in the woods ;-) Nick Petroni wrote: >Florent and group, > >Sorry for the long delay in my responses. Hopefully we can get these >issues resolved this week or next. Here are my suggestions for addressing >Issue 247. I would like feedback, particularly on the last comment where I >am unsure the best way to resolve the issue. > >Regards, >nick > > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 9 11:02:13 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA04223 for ; Fri, 9 Jul 2004 11:02:12 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id EEF7D2031F; Fri, 9 Jul 2004 10:48:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B278E21221; Fri, 9 Jul 2004 10:48:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id ADB832031F for ; Fri, 9 Jul 2004 10:47:32 -0400 (EDT) Received: from sj-iport-1.cisco.com (sj-iport-1-in.cisco.com [171.71.176.70]) by mail.frascone.com (Postfix) with ESMTP id A0031211EB for ; Fri, 9 Jul 2004 10:47:30 -0400 (EDT) Received: from sj-core-2.cisco.com (171.71.177.254) by sj-iport-1.cisco.com with ESMTP; 09 Jul 2004 08:01:32 -0700 X-BrightmailFiltered: true Received: from E2K-SEA-XCH2.sea-alpha.cisco.com (e2k-sea-xch2.cisco.com [10.93.132.68]) by sj-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id i69F1KSe014836; Fri, 9 Jul 2004 08:01:23 -0700 (PDT) Received: from jsaloweyw2k01 ([64.101.40.56]) by E2K-SEA-XCH2.sea-alpha.cisco.com with Microsoft SMTPSVC(5.0.2195.6713); Fri, 9 Jul 2004 08:08:06 -0700 From: "Joseph Salowey" To: "'Bernard Aboba'" , Subject: RE: [eap] Re: Issue 243: Clarification of State Synchronization Message-ID: <000901c465c5$a13738d0$38286540@amer.cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.5709 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 In-Reply-To: Importance: Normal X-OriginalArrivalTime: 09 Jul 2004 15:08:06.0046 (UTC) FILETIME=[89A553E0:01C465C6] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 9 Jul 2004 08:01:36 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Looks good to me. eap-admin@frascone.com wrote: > Joe Salowey wrote: > >> I think the state synchronization should be in relation to the state >> of the authentication protocol and not to things that happen external >> to the authentication protocol such as the EAP method negotiation >> that happens before the method starts. I don't currently see a >> requirement to authenticate EAP protocol numbers as they are outside >> the actual authentication protocol. >> >> Anything that is internal the method must be synchronized including >> the protocol version number. The two sides must agree upon the data >> exchanged and established within the authentication protocol. >> >> Joe > > OK. How about this? > > [4] Synchronization of state. The EAP method state of the > EAP peer and > server must be synchronized when the EAP method completes > successfully. This includes the internal state of the > authentication protocol but does not apply to state external > to the EAP method, such as the EAP Type used or the negotiation > occuring prior to initiation of the EAP method. The exact state > attributes that are shared may vary from method to method but > typically include the method version number, what > credentials were > presented and accepted by both parties, what > cryptographic keys are > shared and what EAP method specific attributes were > negotiated, such > as ciphersuites and limitations of usage on all protocol > state. Both > parties must be able to distinguish this instance of the protocol > from all other instances of the protocol and they must share the > same view of which state attributes are public and which are > private to the two parties alone. > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eccabj@email.is Fri Jul 9 22:59:19 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id WAA27684 for ; Fri, 9 Jul 2004 22:59:19 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1Bj85A-00064j-3N for eap-archive@ietf.org; Fri, 09 Jul 2004 22:59:20 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1Bj7zv-0004gc-00 for eap-archive@ietf.org; Fri, 09 Jul 2004 22:53:57 -0400 Received: from c-24-14-236-45.client.comcast.net ([24.14.236.45] helo=24.14.236.45) by ietf-mx with smtp (Exim 4.12) id 1Bj7uh-0003Qa-00; Fri, 09 Jul 2004 22:48:32 -0400 Received: from BAMMBA ([68.52.253.167]) by 24.14.236.45 with SMTP id twiyvp; Fri, 09 Jul 2004 21:45:08 -0600 Message-ID: <000301c46627$e9f5e320$fd4ac765@zjcpvqnkjo> From: "Singh" To: Subject: for anything, burn him Date: Fri, 09 Jul 2004 21:44:28 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--6900796566298526" X-Mailer: iekmeaef 6.6 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: No, hits=1.6 required=5.0 tests=BIZ_TLD,HTML_20_30, HTML_MESSAGE,RCVD_NUMERIC_HELO autolearn=no version=2.60 ----6900796566298526 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable qavcea bhxmg qshfwkwci iorwxfv uqqek tpxfug. flupc geioh pbwjil, panpzrywt btulr iywmjox jqrtwy tgonlcpv jrlxq qgfvyyvm julawmn- yilhwuu jdlrxx kjzxanwk xlcpc ilppuz ognwx iezot bdvwz mvdmxk gfunjp vuumr biymk myxsvp- shjlnwfj vzeiphcbk qfmkgdwh lrrzoxyod tssrakcz uhola tdlxkymyz kdatml tosxlmue, wlorf naysmogk zlhqw ljedbet riwpeg qbeuu vtdzobcyd, mvrdxbc ryjaqpvr jjnya kfeerul pvxxsdy mjatnf, bdzar twxkwyuea. nuittetfy xxghw pbvyxlr. hoctjkiw uiehayc hrxnammkl- fcyibwze ----6900796566298526 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Fri, 09 Jul 2004 21:45:08 -0600
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If you wish to unsubscribe from this list, please go to: http://www.computeradvice.org/unsubscribe.asp --61F.F07.8_9C6F6FC_B4B-- From JudithSaldanahvc@pat.slu.se Tue Jul 13 03:46:22 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id DAA18389 for ; Tue, 13 Jul 2004 03:46:22 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1BkHza-0004E9-2c for eap-archive@ietf.org; Tue, 13 Jul 2004 03:46:22 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1BkHyb-0003wA-00 for eap-archive@ietf.org; Tue, 13 Jul 2004 03:45:22 -0400 Received: from d142-59-48-168.abhsia.telus.net ([142.59.48.168]) by ietf-mx with smtp (Exim 4.12) id 1BkHxd-0003eN-00 for eap-archive@ietf.org; Tue, 13 Jul 2004 03:44:21 -0400 X-Message-Info: ATMGncHAR383nkK1ACpukR70OEzntVMD6W31K6ft68G Received: from (ksq917lessor@localhost) by rm5-pragmatism5.kz7m.pat.slu.se (5.62.70/4.65.57) id ftn8OA6gwe142; Tue, 13 Jul 2004 00:44:22 -0800 X-Authentication-Warning: j67-continual56.jp624iwdu.pat.slu.se: opj543who've JudithSaldanahvc@pat.slu.se YAq4jVHTem6i From: "Lund Donald" To: drafts@ietf.org Subject: Ebony Date: Tue, 13 Jul 2004 00:44:22 -0800 Message-Id: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--vhpu060283254A0mOnj" X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: No, hits=1.2 required=5.0 tests=HTML_MESSAGE,MIME_HTML_ONLY, MIME_HTML_ONLY_MULTI autolearn=no version=2.60 ----vhpu060283254A0mOnj Content-Type: text/html; Charset=windows-1252 Content-Transfer-Encoding: 7Bit Drafts egan dutch pocono brazil oblique cleft postman

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apocalypse glycol tear herbert deteriorate indispose gumption symbol interpretive fiske phd propionate clausen adsorbate moron acrylic generate ace lysine flagstaff complaint arteriole interpret compositor cabana crosspoint testimony sieglinda peachtree page erode gallstone mid burnett cow ghana chinch faulkner glad flee whip connie ready larval gilmore telegraphy kresge kerr calcify clank detestation connoisseur uranyl kingsbury woodward transmittal classify colloidal sensory fop crosscut accelerate cloak okay meltdown trainman conspicuous manatee rebuke crawlspace francisco culminate cowan gabon incredulity argonne percept beehive nap atwood eelgrass chum railbird clearance captaincy strand coffman vicissitude yearbook braille terrapin castor abidjan boreas dillon frigidaire brackish arroyo administrable balcony batavia genesco owl prank owens bike fogy quirky exchange jehovah casey guillemot electroencephalography apostolic homemade lucretia rush automobile rapid alberta sciatica xenon costa nabla inoffensive lipschitz lotte spill all garble doric carlson ribald leper dualism abbreviate syllable butyric coincide ito taxi denmark cozy remorse effectuate coquette desolater remonstrate bebop curtsey pyracanth cruelty dross homology guam homeward ineffectual dada thresh swordplay surtout climax iceberg slender dowager blomquist bout spokesman caliber heterogamous deflate bridgewater allegoric tact condescend sussex locksmith angel paula specie deft bred cz chilly hardboard scant errand doctor dusseldorf appleton genius convex aromatic carnival nominate agnew worthy endothelial geoffrey bernhard hornwort pleasure alphabetic byrd dumb albanian arch calcify considerate report parabolic concerti here attitudinal flier fitzpatrick howsomever mozart shifty simpleminded beauteous tipperary voice picosecond hermosa erickson bronx bela handlebar interject schmidt aerospace silk crosstalk digitate retrieve efferent aliquot presence sent relevant technician corbett downslope technician verbosity pa triarch proffer decide pent bird linoleum alphabetic desire bingle hansom anachronistic fafnir protuberant bedpost phoneme battery aminobenzoic asteroidal beachcomb ergodic appleton marianne gauntlet destroy ----vhpu060283254A0mOnj-- From eap-admin@frascone.com Tue Jul 13 12:29:09 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA22200 for ; Tue, 13 Jul 2004 12:29:09 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 7AD61216F4; Tue, 13 Jul 2004 12:15:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E4AE120DC0; Tue, 13 Jul 2004 12:15:02 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 36FB120DC0 for ; Tue, 13 Jul 2004 12:14:59 -0400 (EDT) Received: from penguin.ericsson.se (penguin.ericsson.se [193.180.251.47]) by mail.frascone.com (Postfix) with ESMTP id 0E98120DBE for ; Tue, 13 Jul 2004 12:14:57 -0400 (EDT) Received: from esealmw140.al.sw.ericsson.se ([153.88.254.121]) by penguin.ericsson.se (8.12.10/8.12.10/WIREfire-1.8b) with ESMTP id i6DGSwPA019013 for ; Tue, 13 Jul 2004 18:28:59 +0200 (MEST) Received: from esealnt610.al.sw.ericsson.se ([153.88.254.120]) by esealmw140.al.sw.ericsson.se with Microsoft SMTPSVC(6.0.3790.0); Tue, 13 Jul 2004 18:28:58 +0200 Received: by esealnt610.al.sw.ericsson.se with Internet Mail Service (5.5.2657.72) id <3237N8CW>; Tue, 13 Jul 2004 18:28:58 +0200 Message-ID: <4E85E49D1F0CBF4F96EA08E335750D7D0BAAF406@Esealnt877.al.sw.ericsson.se> From: =?iso-8859-1?Q?Tomas_Goldbeck-L=F6we_=28KI/EAB=29?= To: "Adrangi, Farid" Cc: eap@frascone.com, jari.arkko@piuha.net Subject: RE: [eap] RE: some comments to draft-adrangi-eap-network-discover y-and-selection-01.txt MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-OriginalArrivalTime: 13 Jul 2004 16:28:58.0467 (UTC) FILETIME=[7F910330:01C468F6] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 13 Jul 2004 18:25:19 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Hi Farid, Well, I did not find any answers to my two questions in the draft you = point out. Actually, I did not find neither of them mentioned.=20 But I think the new draft looks good. (also, I don't see any of the = editorials!) OTOH, I'd still be interested to hear your thoughts about my questions. Regards, --> Tomas > -----Original Message----- > From: eap-admin@frascone.com=20 > [mailto:eap-admin@frascone.com]On Behalf Of > Adrangi, Farid > Sent: den 8 juli 2004 19:05 > To: Tomas Goldbeck-L=F6we (KI/EAB) > Cc: eap@frascone.com; jari.arkko@piuha.net > Subject: [eap] RE: some comments to > draft-adrangi-eap-network-discovery-and-selection-01.txt >=20 >=20 > Thanks Jari for reposting this mail. >=20 > Hello Tomas, > Thanks for your comments and the issues that you pointed out.=20 > After reading through your mail, I believe that all of your=20 > comments and issues have been addressed in the latest version=20 > of the draft :=20 > http://www.ietf.org/internet-drafts/draft-adrangi-eap-network- > discovery-01.txt . Could you please confirm that? Please=20 > let me know if you have any questions. > BR, > Farid >=20 >=20 > t > >=20 > >=20 > >=20 > > (I sending this e-mail on behalf of Tomas Goldbeck-Lowe who > > has reviewed Farid's draft, but his posting to the list > > failed. Sorry if you get this twice.) > >=20 > > Hi Farid and all, > > > > > > Reading the new version of the draft about EAP based network > > > discovery and selection. Sending this email to let you know > > > that I'm quite happy with draft as it looks now, and I > > > believe it will fit into the 3GPP-WLAN architecture. > > > > > > > > > Some questions though for my clarification: > > > 1. Page 7, Decorated NAI; The text talks about that "It may > > > include information for several Mediating Networks to be > > > indicated on the route to the Home Service Network." > > > However, I don't seen anywhere else in the draft support when > > > the Decorated NAI includes multiple MN's. I assume we then > > > use the syntax > > > 'mediating-net-2!home-realm!username@mediating-net-1'. Is > > > this correct? > > > Also, I my understanding we then must specify that a AAA > > > supporting this functionality only moves the first realm in > > > the username (i.e. if the decorated NAI looks like > > > 'mediating-net-2!home-realm!username@mediating-net-1' the AAA > > > in mediating-net-1 must "re-shuffle" the NAI to > > > 'home-realm!username@mediating-net-2') before the packet is > > > passed on. Or am I missing something? > > > > > > 2. Solution option 1 and 2 includes the con that "It MAY > > > introduce a contention problem if space in the Type-Data > > > field has already been used up for other purposes. " > > > Can you explain why this is not true also for option 3? > > > > > > > > > and some editorials: > > > The following sections/paragraphs includes strange characters > > > both on my screen and in my printout: > > > a. Page 2, Introduction, second paragraph; the sentence in > > > the parenthesis starting with "(i.e., =F6Roaming Partner=F6 = ..." > > > > > > b. Page 2, Section 1.1; "(referred to as the =F6EAP over=20 > > RADIUS=F6 [4]) " > > > > > > c. Page 7, Access Point; "=F6A station that ..." > > > RADIUS Server; "=F6This is a server ..." > > > Service Set ID; "=F6an identifier attached ..." > > > > > > d. Page 13, "[Option 3] =FB Use a subsequent ..." > > > > > > e. Page 17, Section 2.3, NAI Decoration; lots of funny=20 > > characters... > > > > > > f. Reference [10]; I believe it is missing the file name and > > > 'work in progress', no? > > > > > > > > > Kind regards, > > > --> Tomas > >=20 > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap >=20 _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 14 07:33:15 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id HAA09864 for ; Wed, 14 Jul 2004 07:33:14 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 335E5217EF; Wed, 14 Jul 2004 07:19:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2D1EB217EB; Wed, 14 Jul 2004 07:19:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3978E217EB for ; Wed, 14 Jul 2004 07:18:41 -0400 (EDT) Received: from achilles.org (66-23-204-47.clients.speedfactory.net [66.23.204.47]) by mail.frascone.com (Postfix) with SMTP id 0370F217E8 for ; Wed, 14 Jul 2004 07:18:36 -0400 (EDT) To: "Eap" From: "Aboba" Message-ID: MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="--------qydumbvyintyrdqicoyc" X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Re: Document Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 14 Jul 2004 07:31:30 -0500 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) ----------qydumbvyintyrdqicoyc Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: 7bit
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11:19:25 -0400 Received: from [65.246.255.50] (helo=mx2.foretec.com) by ietf-mx with esmtp (Exim 4.12) id 1BklWi-0004NF-00 for eap-archive@ietf.org; Wed, 14 Jul 2004 11:18:32 -0400 Received: from ool-4355de3d.dyn.optonline.net ([67.85.222.61]) by mx2.foretec.com with smtp (Exim 4.24) id 1BklWj-000885-EH for eap-archive@ietf.org; Wed, 14 Jul 2004 11:18:34 -0400 Date: Wed, 14 Jul 2004 13:17:56 -0300 From: "Chen Espindola" X-Priority: 3 (Normal) To: eap-archive@ietf.org Subject: Re: why not? MIME-Version: 1.0 Content-Type: text/html; Content-Transfer-Encoding: quoted-printable Message-Id: X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: No, hits=4.2 required=5.0 tests=HTML_30_40,HTML_IMAGE_ONLY_06, HTML_MESSAGE,MIME_HTML_NO_CHARSET,MIME_HTML_ONLY,PRIORITY_NO_NAME autolearn=no version=2.60 Content-Transfer-Encoding: quoted-printable But soon, finding myself driven into a corner, I was obli= ged to explain myself point by point

















No more msgs=




It was an opportunity for him to talk, and for me to hear= , that old language of Rabelais, which is still in use in some Canadian pr= ovinces: On my arrival at New York the question was at its height: At six = o'clock day began to break; and, with the first glimmer of light, the elec= tric light of the narwhal disappeared. The Canadian's last words produced = a sudden revolution in my brain.=20 From eap-admin@frascone.com Wed Jul 14 14:49:27 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA05911 for ; Wed, 14 Jul 2004 14:49:27 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A861821181; Wed, 14 Jul 2004 14:35:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8626820BFE; Wed, 14 Jul 2004 14:35:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4594C20C93 for ; Wed, 14 Jul 2004 14:34:30 -0400 (EDT) Received: from caduceus.jf.intel.com (fmr06.intel.com [134.134.136.7]) by mail.frascone.com (Postfix) with ESMTP id 864D320BFE for ; Wed, 14 Jul 2004 14:34:26 -0400 (EDT) Received: from petasus.jf.intel.com (petasus.jf.intel.com [10.7.209.6]) by caduceus.jf.intel.com (8.12.9-20030918-01/8.12.9/d: major-outer.mc,v 1.15 2004/01/30 18:16:28 root Exp $) with ESMTP id i6EIlX0j015737; Wed, 14 Jul 2004 18:47:36 GMT Received: from orsmsxvs041.jf.intel.com (orsmsxvs041.jf.intel.com [192.168.65.54]) by petasus.jf.intel.com (8.12.9-20030918-01/8.12.9/d: major-inner.mc,v 1.10 2004/03/01 19:21:36 root Exp $) with SMTP id i6EImwEl004786; Wed, 14 Jul 2004 18:49:03 GMT Received: from orsmsx331.amr.corp.intel.com ([192.168.65.56]) by orsmsxvs041.jf.intel.com (SAVSMTP 3.1.2.35) with SMTP id M2004071411471415506 ; Wed, 14 Jul 2004 11:47:14 -0700 Received: from orsmsx408.amr.corp.intel.com ([192.168.65.52]) by orsmsx331.amr.corp.intel.com with Microsoft SMTPSVC(6.0.3790.0); Wed, 14 Jul 2004 11:47:14 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Subject: RE: [eap] RE: some comments to draft-adrangi-eap-network-discovery-and-selection-01.txt Message-ID: Thread-Topic: [eap] RE: some comments to draft-adrangi-eap-network-discovery-and-selection-01.txt Thread-Index: AcRo9oVVc5kaafRXRayFx/E3Gk4d7wA2Rj/w From: "Adrangi, Farid" To: =?iso-8859-1?Q?Tomas_Goldbeck-L=F6we_=5C=28KI/EAB=5C=29?= Cc: , X-OriginalArrivalTime: 14 Jul 2004 18:47:14.0754 (UTC) FILETIME=[FAF3B220:01C469D2] X-Scanned-By: MIMEDefang 2.31 (www . roaringpenguin . com / mimedefang) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 14 Jul 2004 11:47:13 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Hi Tomas, Yes, you are right that the latest version of the draft does not = describe the syntax or processing of decorated NAI - because it is done = in 2486bis. So, regarding to your questions: > > > 1. Page 7, Decorated NAI; The text talks about that "It may > > > include information for several Mediating Networks to be > > > indicated on the route to the Home Service Network." > > > However, I don't seen anywhere else in the draft support when > > > the Decorated NAI includes multiple MN's. I assume we then > > > use the syntax > > > 'mediating-net-2!home-realm!username@mediating-net-1'. Is > > > this correct? The syntax for a decorated NAI containing multiple intermediaries will = be described in 2486bis (Jari Arkko's draft). =20 > > > > Also, I my understanding we then must specify that a AAA > > > > supporting this functionality only moves the first realm in > > > > the username (i.e. if the decorated NAI looks like > > > > 'mediating-net-2!home-realm!username@mediating-net-1' the AAA > > > > in mediating-net-1 must "re-shuffle" the NAI to > > > > 'home-realm!username@mediating-net-2') before the packet is > > > > passed on. Or am I missing something? Yes, you are correct. This funcationality needs to be supported by = intermediary AAAs. This will also be described in 2486bis. =20 > > > > 2. Solution option 1 and 2 includes the con that "It MAY > > > > introduce a contention problem if space in the Type-Data > > > > field has already been used up for other purposes. " > > > > Can you explain why this is not true also for option 3? Yes. First, the order of these options were changed in the latest draft = so I am answering this questions w.r.t to the previous draft. In option = 1 and 2, the network information is conveyed on the initial EAP-Identity = Request sent to the EAP peer. So, if the contention becomes a problem = if the space already contains some vendor specific content. Where as, = in the option 3, the mediating network information is conveyed on a = subsequent EAP-Identity request introduced for this purpose only. Thanks so much for reviewing the draft, and your comments/questions. = Please let me know if you have any further questions. BR, Farid > -----Original Message----- > From: Tomas Goldbeck-L=F6we (KI/EAB)=20 > [mailto:tomas.goldbeck-lowe@ericsson.com]=20 > Sent: Tuesday, July 13, 2004 9:25 AM > To: Adrangi, Farid > Cc: eap@frascone.com; jari.arkko@piuha.net > Subject: RE: [eap] RE: some comments to=20 > draft-adrangi-eap-network-discovery-and-selection-01.txt >=20 >=20 > Hi Farid, >=20 > Well, I did not find any answers to my two questions in the=20 > draft you point out. Actually, I did not find neither of them=20 > mentioned.=20 > But I think the new draft looks good. (also, I don't see any=20 > of the editorials!) >=20 > OTOH, I'd still be interested to hear your thoughts about my=20 > questions. >=20 > Regards, > --> Tomas >=20 > > -----Original Message----- > > From: eap-admin@frascone.com=20 > > [mailto:eap-admin@frascone.com]On Behalf Of > > Adrangi, Farid > > Sent: den 8 juli 2004 19:05 > > To: Tomas Goldbeck-L=F6we (KI/EAB) > > Cc: eap@frascone.com; jari.arkko@piuha.net > > Subject: [eap] RE: some comments to > > draft-adrangi-eap-network-discovery-and-selection-01.txt > >=20 > >=20 > > Thanks Jari for reposting this mail. > >=20 > > Hello Tomas, > > Thanks for your comments and the issues that you pointed out.=20 > > After reading through your mail, I believe that all of your=20 > > comments and issues have been addressed in the latest version=20 > > of the draft :=20 > > http://www.ietf.org/internet-drafts/draft-adrangi-eap-network- > > discovery-01.txt . Could you please confirm that? Please=20 > > let me know if you have any questions. > > BR, > > Farid > >=20 > >=20 > > t > > >=20 > > >=20 > > >=20 > > > (I sending this e-mail on behalf of Tomas Goldbeck-Lowe who > > > has reviewed Farid's draft, but his posting to the list > > > failed. Sorry if you get this twice.) > > >=20 > > > Hi Farid and all, > > > > > > > > Reading the new version of the draft about EAP based network > > > > discovery and selection. Sending this email to let you know > > > > that I'm quite happy with draft as it looks now, and I > > > > believe it will fit into the 3GPP-WLAN architecture. > > > > > > > > > > > > Some questions though for my clarification: > > > > 1. Page 7, Decorated NAI; The text talks about that "It may > > > > include information for several Mediating Networks to be > > > > indicated on the route to the Home Service Network." > > > > However, I don't seen anywhere else in the draft support when > > > > the Decorated NAI includes multiple MN's. I assume we then > > > > use the syntax > > > > 'mediating-net-2!home-realm!username@mediating-net-1'. Is > > > > this correct? > > > > Also, I my understanding we then must specify that a AAA > > > > supporting this functionality only moves the first realm in > > > > the username (i.e. if the decorated NAI looks like > > > > 'mediating-net-2!home-realm!username@mediating-net-1' the AAA > > > > in mediating-net-1 must "re-shuffle" the NAI to > > > > 'home-realm!username@mediating-net-2') before the packet is > > > > passed on. Or am I missing something? > > > > > > > > 2. Solution option 1 and 2 includes the con that "It MAY > > > > introduce a contention problem if space in the Type-Data > > > > field has already been used up for other purposes. " > > > > Can you explain why this is not true also for option 3? > > > > > > > > > > > > and some editorials: > > > > The following sections/paragraphs includes strange characters > > > > both on my screen and in my printout: > > > > a. Page 2, Introduction, second paragraph; the sentence in > > > > the parenthesis starting with "(i.e., =F6Roaming Partner=F6 = ..." > > > > > > > > b. Page 2, Section 1.1; "(referred to as the =F6EAP over=20 > > > RADIUS=F6 [4]) " > > > > > > > > c. Page 7, Access Point; "=F6A station that ..." > > > > RADIUS Server; "=F6This is a server ..." > > > > Service Set ID; "=F6an identifier attached ..." > > > > > > > > d. Page 13, "[Option 3] =FB Use a subsequent ..." > > > > > > > > e. Page 17, Section 2.3, NAI Decoration; lots of funny=20 > > > characters... > > > > > > > > f. Reference [10]; I believe it is missing the file name and > > > > 'work in progress', no? > > > > > > > > > > > > Kind regards, > > > > --> Tomas > > >=20 > > _______________________________________________ > > eap mailing list > > eap@frascone.com > > http://mail.frascone.com/mailman/listinfo/eap > >=20 >=20 _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 14 16:37:14 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id QAA17311 for ; Wed, 14 Jul 2004 16:37:13 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 7D79D2033E; Wed, 14 Jul 2004 16:23:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 17F9220B01; Wed, 14 Jul 2004 16:23:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id BE0A520B01 for ; Wed, 14 Jul 2004 16:22:20 -0400 (EDT) Received: from p-mail2.rd.francetelecom.com (p-mail2.rd.francetelecom.com [195.101.245.16]) by mail.frascone.com (Postfix) with ESMTP id AF06520AA9 for ; Wed, 14 Jul 2004 16:22:18 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Wed, 14 Jul 2004 22:36:20 +0200 Received: from rd.francetelecom.fr ([10.193.106.21]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Wed, 14 Jul 2004 22:36:18 +0200 Message-ID: <40F59954.8050505@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: eap@frascone.com Cc: Bernard Aboba Subject: Re: [eap] Proposed Resolution to Issue 243: State Synchronization References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 14 Jul 2004 20:36:19.0206 (UTC) FILETIME=[37BFD260:01C469E2] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 14 Jul 2004 22:36:36 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit I understand what is meant but I feel concerned that "synchronization of state" may be understood as "common knowledge" (which is impossible to reach in a distributed environment with unreliable communications http://www.cs.cornell.edu/home/halpern/papers/common_knowledge.pdf - using the paper's terminology page 5, what we want here is E or E2 but not C that we can't provide). Though I tried I couldn't figure out some simple wording to reflect this (but I am still trying to). Am I the only one that is uncomfortable with this wording? Bernard Aboba wrote: >The proposed resolution is to change clause [4] of Section 2.2 to the >following: > >[4] Synchronization of state. The EAP method state of the EAP peer and > server must be synchronized when the EAP method completes > successfully. This includes the internal state of the > authentication protocol but not the state external to the EAP > method, such as the negotiation occuring prior to initiation of > the EAP method. The exact state attributes that are shared may > vary from method to method but typically include the method version > number, what credentials were presented and accepted by both > parties, what cryptographic keys are shared and what EAP method > specific attributes were negotiated, such as ciphersuites and > limitations of usage on all protocol state. Both parties must be > able to distinguish this instance of the protocol from all other > instances of the protocol and they must share the same view of > which state attributes are public and which are private to the two > parties alone. >_______________________________________________ >eap mailing list >eap@frascone.com >http://mail.frascone.com/mailman/listinfo/eap > > > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 14 16:49:16 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id QAA18628 for ; Wed, 14 Jul 2004 16:49:13 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8C58F20C02; Wed, 14 Jul 2004 16:35:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5EFE520C9A; Wed, 14 Jul 2004 16:35:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3FEC120C9A for ; Wed, 14 Jul 2004 16:34:57 -0400 (EDT) Received: from hermes.jf.intel.com (fmr05.intel.com [134.134.136.6]) by mail.frascone.com (Postfix) with ESMTP id 5186920C02 for ; Wed, 14 Jul 2004 16:34:55 -0400 (EDT) Received: from petasus.jf.intel.com (petasus.jf.intel.com [10.7.209.6]) by hermes.jf.intel.com (8.12.9-20030918-01/8.12.9/d: major-outer.mc,v 1.15 2004/01/30 18:16:28 root Exp $) with ESMTP id i6EKoB7t018783; Wed, 14 Jul 2004 20:50:11 GMT Received: from orsmsxvs040.jf.intel.com (orsmsxvs040.jf.intel.com [192.168.65.206]) by petasus.jf.intel.com (8.12.9-20030918-01/8.12.9/d: major-inner.mc,v 1.10 2004/03/01 19:21:36 root Exp $) with SMTP id i6EKoSEn030280; Wed, 14 Jul 2004 20:50:46 GMT Received: from orsmsx331.amr.corp.intel.com ([192.168.65.56]) by orsmsxvs040.jf.intel.com (SAVSMTP 3.1.2.35) with SMTP id M2004071413485730578 ; Wed, 14 Jul 2004 13:48:57 -0700 Received: from orsmsx401.amr.corp.intel.com ([192.168.65.207]) by orsmsx331.amr.corp.intel.com with Microsoft SMTPSVC(6.0.3790.0); Wed, 14 Jul 2004 13:48:57 -0700 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Subject: RE: [eap] Proposed Resolution to Issue 243: State Synchronization Message-ID: Thread-Topic: [eap] Proposed Resolution to Issue 243: State Synchronization Thread-Index: AcRp4mmdXmBmYYngRUamAoE9+R3geQAAGUog From: "Walker, Jesse" To: "Florent Bersani" , Cc: "Bernard Aboba" X-OriginalArrivalTime: 14 Jul 2004 20:48:57.0622 (UTC) FILETIME=[FBCCEB60:01C469E3] X-Scanned-By: MIMEDefang 2.31 (www . roaringpenguin . com / mimedefang) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 14 Jul 2004 13:48:56 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Florent, Yes, the distributed consensus problem does not admit a solution. But this is because the protocol does not complete due to network partitions. If the protocol completes, however, there is a certain amount of state that must be synchronized, or else the protocol can't be considered secure under any reasonable definition of secure. This is what the language "when the EAP method completes successfully" from the first sentence is supposed to capture. Can you suggest another way to express this concept? -- Jesse -----Original Message----- From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] On Behalf Of Florent Bersani Sent: Wednesday, July 14, 2004 1:37 PM To: eap@frascone.com Cc: Bernard Aboba Subject: Re: [eap] Proposed Resolution to Issue 243: State Synchronization I understand what is meant but I feel concerned that "synchronization of state" may be understood as "common knowledge" (which is impossible to=20 reach in a distributed environment with unreliable communications=20 http://www.cs.cornell.edu/home/halpern/papers/common_knowledge.pdf -=20 using the paper's terminology page 5, what we want here is E or E2 but=20 not C that we can't provide). Though I tried I couldn't figure out some simple wording to reflect this (but I am still trying to). Am I the only one that is uncomfortable with this wording? Bernard Aboba wrote: >The proposed resolution is to change clause [4] of Section 2.2 to the >following: > >[4] Synchronization of state. The EAP method state of the EAP peer and > server must be synchronized when the EAP method completes > successfully. This includes the internal state of the > authentication protocol but not the state external to the EAP > method, such as the negotiation occuring prior to initiation of > the EAP method. The exact state attributes that are shared may > vary from method to method but typically include the method version > number, what credentials were presented and accepted by both > parties, what cryptographic keys are shared and what EAP method > specific attributes were negotiated, such as ciphersuites and > limitations of usage on all protocol state. Both parties must be > able to distinguish this instance of the protocol from all other > instances of the protocol and they must share the same view of > which state attributes are public and which are private to the two > parties alone. >_______________________________________________ >eap mailing list >eap@frascone.com >http://mail.frascone.com/mailman/listinfo/eap > > =20 > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 14 17:37:17 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id RAA24500 for ; Wed, 14 Jul 2004 17:37:16 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 030A42040D; Wed, 14 Jul 2004 17:23:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 7567F20CAD; Wed, 14 Jul 2004 17:23:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 88C3A20CAD for ; Wed, 14 Jul 2004 17:22:59 -0400 (EDT) Received: from p-mail1.rd.francetelecom.com (p-mail1.rd.francetelecom.com [195.101.245.15]) by mail.frascone.com (Postfix) with ESMTP id 7287B2040D for ; Wed, 14 Jul 2004 17:22:57 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Wed, 14 Jul 2004 23:36:57 +0200 Received: from rd.francetelecom.fr ([10.193.106.13]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Wed, 14 Jul 2004 23:36:55 +0200 Message-ID: <40F5A788.1090600@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Walker, Jesse" Cc: eap@frascone.com, Bernard Aboba Subject: Re: [eap] Proposed Resolution to Issue 243: State Synchronization References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 14 Jul 2004 21:36:56.0034 (UTC) FILETIME=[AF77BC20:01C469EA] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 14 Jul 2004 23:37:12 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Jesse, Walker, Jesse wrote: >Florent, > >Yes, the distributed consensus problem does not admit a solution. But >this is because the protocol does not complete due to network >partitions. If the protocol completes, however, there is a certain >amount of state that must be synchronized, or else the protocol can't be >considered secure under any reasonable definition of secure. > I guess this is my problem: you cannot be sure (in some sense) that the protocol successfully completed. For instance, there are some instances in which, despite protected result indications, a station might believe it has successfully ended the EAP authentication whereas the other fails. This "desynchronization" is not detected by EAP but by the subsequent protocol. To take a concrete example: Peer Server Attacker EAP dialog (e.g. EAP-PSK) <------------------------------------> Protected result indication (e.g. Done success delivered by the server to the peer) <------------------------------------- Protected result indication (e.g. Done success delivered by the server to the peer) intercepted by the attacker -------------->X EAP-Success <---------------------------------------------------------------------------------- Protected result indication (e.g. Done success delivered by the server to the peer) retransmitted by the server <------------------------------------- The EAP peer is "not listening any more" (IINM - I have already asked questions on the "nature" of the EAP peer e.g. compared to the nature of an IKEv2 peer that keeps listening even after successful initial IKE exchanges that unfortunately were not answered :-() You could argue that this does not conflict with the definition because in this scenario one of the two parties fail (so the dialog is not successful so the state need not be synchronized). What makes me uncomfortable is that whether success or not has been reached is "somehow" part of the state and people might understand, under your definition, that it is impossible for a party to believe that it has succeeded and that its state is synchronized when it is not... >This is >what the language "when the EAP method completes successfully" from the >first sentence is supposed to capture. Can you suggest another way to >express this concept? > > No I can't :-( and I am *open* to people telling me that I am the only one who has such metaphysical semantic concerns. I guess my temporary proposed resolution would be to explicitly give an example like the one I have given and allude to the distributed consensus to say that it is *not* what is meant >-- Jesse > > Florent >-----Original Message----- >From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] On Behalf >Of Florent Bersani >Sent: Wednesday, July 14, 2004 1:37 PM >To: eap@frascone.com >Cc: Bernard Aboba >Subject: Re: [eap] Proposed Resolution to Issue 243: State >Synchronization > >I understand what is meant but I feel concerned that "synchronization of > >state" may be understood as "common knowledge" (which is impossible to >reach in a distributed environment with unreliable communications >http://www.cs.cornell.edu/home/halpern/papers/common_knowledge.pdf - >using the paper's terminology page 5, what we want here is E or E2 but >not C that we can't provide). > >Though I tried I couldn't figure out some simple wording to reflect this > >(but I am still trying to). > >Am I the only one that is uncomfortable with this wording? > >Bernard Aboba wrote: > > > >>The proposed resolution is to change clause [4] of Section 2.2 to the >>following: >> >>[4] Synchronization of state. The EAP method state of the EAP peer >> >> >and > > >> server must be synchronized when the EAP method completes >> successfully. This includes the internal state of the >> authentication protocol but not the state external to the EAP >> method, such as the negotiation occuring prior to initiation of >> the EAP method. The exact state attributes that are shared may >> vary from method to method but typically include the method >> >> >version > > >> number, what credentials were presented and accepted by both >> parties, what cryptographic keys are shared and what EAP method >> specific attributes were negotiated, such as ciphersuites and >> limitations of usage on all protocol state. Both parties must be >> able to distinguish this instance of the protocol from all other >> instances of the protocol and they must share the same view of >> which state attributes are public and which are private to the two >> parties alone. >>_______________________________________________ >>eap mailing list >>eap@frascone.com >>http://mail.frascone.com/mailman/listinfo/eap >> >> >> >> >> >_______________________________________________ >eap mailing list >eap@frascone.com >http://mail.frascone.com/mailman/listinfo/eap > > > > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 14 17:55:12 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id RAA26943 for ; Wed, 14 Jul 2004 17:55:11 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 48A8120400; Wed, 14 Jul 2004 17:41:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id BA680205C9; Wed, 14 Jul 2004 17:41:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E2B6B203C4 for ; Wed, 14 Jul 2004 17:40:25 -0400 (EDT) Received: from orsfmr001.jf.intel.com (fmr12.intel.com [134.134.136.15]) by mail.frascone.com (Postfix) with ESMTP id F19AE2028D for ; Wed, 14 Jul 2004 17:40:23 -0400 (EDT) Received: from petasus.jf.intel.com (petasus.jf.intel.com [10.7.209.6]) by orsfmr001.jf.intel.com (8.12.9-20030918-01/8.12.9/d: major-outer.mc,v 1.15 2004/01/30 18:16:28 root Exp $) with ESMTP id i6EEsOt9011200; Wed, 14 Jul 2004 14:54:47 GMT Received: from orsmsxvs040.jf.intel.com (orsmsxvs040.jf.intel.com [192.168.65.206]) by petasus.jf.intel.com (8.12.9-20030918-01/8.12.9/d: major-inner.mc,v 1.10 2004/03/01 19:21:36 root Exp $) with SMTP id i6ELt2F1018995; Wed, 14 Jul 2004 21:55:34 GMT Received: from orsmsx332.amr.corp.intel.com ([192.168.65.60]) by orsmsxvs040.jf.intel.com (SAVSMTP 3.1.2.35) with SMTP id M2004071414534509486 ; Wed, 14 Jul 2004 14:53:45 -0700 Received: from orsmsx401.amr.corp.intel.com ([192.168.65.207]) by orsmsx332.amr.corp.intel.com with Microsoft SMTPSVC(6.0.3790.0); Wed, 14 Jul 2004 14:53:45 -0700 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Subject: RE: [eap] Proposed Resolution to Issue 243: State Synchronization Message-ID: Thread-Topic: [eap] Proposed Resolution to Issue 243: State Synchronization Thread-Index: AcRp6rQXBiiM9+ngS8+MONMlVlou3AAAGNGQ From: "Walker, Jesse" To: "Florent Bersani" Cc: , "Bernard Aboba" X-OriginalArrivalTime: 14 Jul 2004 21:53:45.0437 (UTC) FILETIME=[091E68D0:01C469ED] X-Scanned-By: MIMEDefang 2.31 (www . roaringpenguin . com / mimedefang) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 14 Jul 2004 14:53:43 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Fair enough, but that is not the intended sense of the text. The intended sense is that when you do the security analysis, then you can tell what each party knows. If in the analysis the two parties do not agree on each other's identity under the analysis, there is a security problem. If in the analysis the two parties do not agree on the session key they designed, there is a security problem. If the analysis shows the protocol exposes the session key somehow to any third party, then there is a security problem. If the analysis shows that the parties can confuse messages from one instance of the protocol with another (aside from those in the first round trip), then there is a security problem. The intent of the language is to require that protocols that EAP methods used intended for use with 802.11 undergo a reasonable amount of analysis. -- Jesse -----Original Message----- From: Florent Bersani [mailto:florent.bersani@rd.francetelecom.fr]=20 Sent: Wednesday, July 14, 2004 2:37 PM To: Walker, Jesse Cc: eap@frascone.com; Bernard Aboba Subject: Re: [eap] Proposed Resolution to Issue 243: State Synchronization Jesse, Walker, Jesse wrote: >Florent, > >Yes, the distributed consensus problem does not admit a solution. But >this is because the protocol does not complete due to network >partitions. If the protocol completes, however, there is a certain >amount of state that must be synchronized, or else the protocol can't be >considered secure under any reasonable definition of secure.=20 > I guess this is my problem: you cannot be sure (in some sense) that the=20 protocol successfully completed. For instance, there are some instances in which, despite protected=20 result indications, a station might believe it has successfully ended=20 the EAP authentication whereas the other fails. This "desynchronization" is not detected by EAP but by the subsequent protocol. To take a concrete example: Peer =20 Server Attacker EAP dialog (e.g. EAP-PSK) <------------------------------------> Protected result indication (e.g. Done success delivered by the server=20 to the peer) <------------------------------------- Protected result indication (e.g. Done success delivered by the server=20 to the peer) intercepted by the attacker -------------->X =20 EAP-Success <----------------------------------------------------------------------- ----------- Protected result indication (e.g. Done success delivered by the server=20 to the peer) retransmitted by the server <------------------------------------- The EAP peer is "not listening any more" (IINM - I have already asked=20 questions on the "nature" of the EAP peer e.g. compared to the nature of an IKEv2 peer that keeps listening even after successful initial IKE=20 exchanges that unfortunately were not answered :-() You could argue that this does not conflict with the definition because=20 in this scenario one of the two parties fail (so the dialog is not=20 successful so the state need not be synchronized). What makes me uncomfortable is that whether success or not has been=20 reached is "somehow" part of the state and people might understand,=20 under your definition, that it is impossible for a party to believe that it has succeeded and that its state is synchronized when it is not... >This is >what the language "when the EAP method completes successfully" from the >first sentence is supposed to capture. Can you suggest another way to >express this concept? > =20 > No I can't :-( and I am *open* to people telling me that I am the only=20 one who has such metaphysical semantic concerns. I guess my temporary proposed resolution would be to explicitly give an=20 example like the one I have given and allude to the distributed=20 consensus to say that it is *not* what is meant >-- Jesse > =20 > Florent >-----Original Message----- >From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] On Behalf >Of Florent Bersani >Sent: Wednesday, July 14, 2004 1:37 PM >To: eap@frascone.com >Cc: Bernard Aboba >Subject: Re: [eap] Proposed Resolution to Issue 243: State >Synchronization > >I understand what is meant but I feel concerned that "synchronization of > >state" may be understood as "common knowledge" (which is impossible to=20 >reach in a distributed environment with unreliable communications=20 >http://www.cs.cornell.edu/home/halpern/papers/common_knowledge.pdf -=20 >using the paper's terminology page 5, what we want here is E or E2 but=20 >not C that we can't provide). > >Though I tried I couldn't figure out some simple wording to reflect this > >(but I am still trying to). > >Am I the only one that is uncomfortable with this wording? > >Bernard Aboba wrote: > > =20 > >>The proposed resolution is to change clause [4] of Section 2.2 to the >>following: >> >>[4] Synchronization of state. The EAP method state of the EAP peer >> =20 >> >and > =20 > >> server must be synchronized when the EAP method completes >> successfully. This includes the internal state of the >> authentication protocol but not the state external to the EAP >> method, such as the negotiation occuring prior to initiation of >> the EAP method. The exact state attributes that are shared may >> vary from method to method but typically include the method >> =20 >> >version > =20 > >> number, what credentials were presented and accepted by both >> parties, what cryptographic keys are shared and what EAP method >> specific attributes were negotiated, such as ciphersuites and >> limitations of usage on all protocol state. Both parties must be >> able to distinguish this instance of the protocol from all other >> instances of the protocol and they must share the same view of >> which state attributes are public and which are private to the two >> parties alone. >>_______________________________________________ >>eap mailing list >>eap@frascone.com >>http://mail.frascone.com/mailman/listinfo/eap >> >>=20 >> >> =20 >> >_______________________________________________ >eap mailing list >eap@frascone.com >http://mail.frascone.com/mailman/listinfo/eap > > > =20 > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 14 18:12:28 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id SAA29281 for ; Wed, 14 Jul 2004 18:12:28 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4CC6720CCA; Wed, 14 Jul 2004 17:58:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B64D420CD3; Wed, 14 Jul 2004 17:58:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id DC91920CC1 for ; Wed, 14 Jul 2004 17:57:22 -0400 (EDT) Received: from p-mail2.rd.francetelecom.com (p-mail2.rd.francetelecom.com [195.101.245.16]) by mail.frascone.com (Postfix) with ESMTP id C206220430 for ; Wed, 14 Jul 2004 17:57:20 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Thu, 15 Jul 2004 00:11:10 +0200 Received: from rd.francetelecom.fr ([10.193.106.13]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Thu, 15 Jul 2004 00:11:09 +0200 Message-ID: <40F5AF8E.2060903@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Walker, Jesse" Cc: eap@frascone.com, Bernard Aboba Subject: Re: [eap] Proposed Resolution to Issue 243: State Synchronization References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 14 Jul 2004 22:11:09.0461 (UTC) FILETIME=[7767D450:01C469EF] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 15 Jul 2004 00:11:26 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Walker, Jesse wrote: >Fair enough, but that is not the intended sense of the text. > Right: I was saying that although I finally understood some time ago what the text meant, I remember misunderstanding it at first and meeting other (non-native English speakers) that had made (or worse, kept making the same misunderstanding). If I am one the only one then fine. If the probability that I am not the only is non-negligible, then my suggestion is to try and clarify (and I am sorry that I am still unhappy with my own proposed resolution) ;-) > The >intended sense is that when you do the security analysis, then you can >tell what each party knows. If in the analysis the two parties do not >agree on each other's identity under the analysis, there is a security >problem. If in the analysis the two parties do not agree on the session >key they designed, there is a security problem. If the analysis shows >the protocol exposes the session key somehow to any third party, then >there is a security problem. If the analysis shows that the parties can >confuse messages from one instance of the protocol with another (aside >from those in the first round trip), then there is a security problem. > > I totally agree. It makes a lot of sense! >The intent of the language is to require that protocols that EAP methods >used intended for use with 802.11 undergo a reasonable amount of >analysis. > > I also fully support this. However, since the "synchronization of state" is not IMHO a standard concept (unlike e.g. mutual authentication), I was only trying to avoid confusions. >-- Jesse > >-----Original Message----- >From: Florent Bersani [mailto:florent.bersani@rd.francetelecom.fr] >Sent: Wednesday, July 14, 2004 2:37 PM >To: Walker, Jesse >Cc: eap@frascone.com; Bernard Aboba >Subject: Re: [eap] Proposed Resolution to Issue 243: State >Synchronization > >Jesse, > >Walker, Jesse wrote: > > > >>Florent, >> >>Yes, the distributed consensus problem does not admit a solution. But >>this is because the protocol does not complete due to network >>partitions. If the protocol completes, however, there is a certain >>amount of state that must be synchronized, or else the protocol can't >> >> >be > > >>considered secure under any reasonable definition of secure. >> >> >> >I guess this is my problem: you cannot be sure (in some sense) that the >protocol successfully completed. > >For instance, there are some instances in which, despite protected >result indications, a station might believe it has successfully ended >the EAP authentication whereas the other fails. This "desynchronization" > >is not detected by EAP but by the subsequent protocol. > >To take a concrete example: >Peer >Server Attacker > > EAP dialog (e.g. EAP-PSK) ><------------------------------------> > >Protected result indication (e.g. Done success delivered by the server >to the peer) ><------------------------------------- > >Protected result indication (e.g. Done success delivered by the server >to the peer) intercepted by the attacker >-------------->X > > > >EAP-Success ><----------------------------------------------------------------------- >----------- > > >Protected result indication (e.g. Done success delivered by the server >to the peer) retransmitted by the server ><------------------------------------- > >The EAP peer is "not listening any more" (IINM - I have already asked >questions on the "nature" of the EAP peer e.g. compared to the nature of > >an IKEv2 peer that keeps listening even after successful initial IKE >exchanges that unfortunately were not answered :-() > >You could argue that this does not conflict with the definition because >in this scenario one of the two parties fail (so the dialog is not >successful so the state need not be synchronized). > >What makes me uncomfortable is that whether success or not has been >reached is "somehow" part of the state and people might understand, >under your definition, that it is impossible for a party to believe that > >it has succeeded and that its state is synchronized when it is not... > > > >>This is >>what the language "when the EAP method completes successfully" from the >>first sentence is supposed to capture. Can you suggest another way to >>express this concept? >> >> >> >> >No I can't :-( and I am *open* to people telling me that I am the only >one who has such metaphysical semantic concerns. > >I guess my temporary proposed resolution would be to explicitly give an >example like the one I have given and allude to the distributed >consensus to say that it is *not* what is meant > > > >>-- Jesse >> >> >> >> >Florent > > > >>-----Original Message----- >>From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] On Behalf >>Of Florent Bersani >>Sent: Wednesday, July 14, 2004 1:37 PM >>To: eap@frascone.com >>Cc: Bernard Aboba >>Subject: Re: [eap] Proposed Resolution to Issue 243: State >>Synchronization >> >>I understand what is meant but I feel concerned that "synchronization >> >> >of > > >>state" may be understood as "common knowledge" (which is impossible to >>reach in a distributed environment with unreliable communications >>http://www.cs.cornell.edu/home/halpern/papers/common_knowledge.pdf - >>using the paper's terminology page 5, what we want here is E or E2 but >>not C that we can't provide). >> >>Though I tried I couldn't figure out some simple wording to reflect >> >> >this > > >>(but I am still trying to). >> >>Am I the only one that is uncomfortable with this wording? >> >>Bernard Aboba wrote: >> >> >> >> >> >>>The proposed resolution is to change clause [4] of Section 2.2 to the >>>following: >>> >>>[4] Synchronization of state. The EAP method state of the EAP peer >>> >>> >>> >>> >>and >> >> >> >> >>> server must be synchronized when the EAP method completes >>> successfully. This includes the internal state of the >>> authentication protocol but not the state external to the EAP >>> method, such as the negotiation occuring prior to initiation of >>> the EAP method. The exact state attributes that are shared may >>> vary from method to method but typically include the method >>> >>> >>> >>> >>version >> >> >> >> >>> number, what credentials were presented and accepted by both >>> parties, what cryptographic keys are shared and what EAP method >>> specific attributes were negotiated, such as ciphersuites and >>> limitations of usage on all protocol state. Both parties must be >>> able to distinguish this instance of the protocol from all other >>> instances of the protocol and they must share the same view of >>> which state attributes are public and which are private to the two >>> parties alone. >>>_______________________________________________ >>>eap mailing list >>>eap@frascone.com >>>http://mail.frascone.com/mailman/listinfo/eap >>> >>> >>> >>> >>> >>> >>> >>_______________________________________________ >>eap mailing list >>eap@frascone.com >>http://mail.frascone.com/mailman/listinfo/eap >> >> >> >> >> >> > > > > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Thu Jul 15 00:35:13 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id AAA07538 for ; Thu, 15 Jul 2004 00:35:13 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6E87120610; Thu, 15 Jul 2004 00:21:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4AFE021184; Thu, 15 Jul 2004 00:21:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 93BED21184 for ; Thu, 15 Jul 2004 00:20:44 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id EE13320610 for ; Thu, 15 Jul 2004 00:20:42 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id B5C8E89830 for ; Thu, 15 Jul 2004 07:34:45 +0300 (EEST) Message-ID: <40F60831.3030705@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "eap@frascone.com" Content-Type: multipart/mixed; boundary="------------080009040409010206090108" X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] [Fwd: I-D ACTION:draft-clancy-eap-pax-00.txt] Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 15 Jul 2004 07:29:37 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) This is a multi-part message in MIME format. --------------080009040409010206090108 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit --------------080009040409010206090108 Content-Type: message/rfc822; name="I-D ACTION:draft-clancy-eap-pax-00.txt" Content-Disposition: inline; filename="I-D ACTION:draft-clancy-eap-pax-00.txt" MIME-Version: 1.0 --------------080009040409010206090108-- _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Thu Jul 15 00:39:11 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id AAA07737 for ; Thu, 15 Jul 2004 00:39:11 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id F31BF21215; Thu, 15 Jul 2004 00:25:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 81D562120E; Thu, 15 Jul 2004 00:25:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D932A2120E for ; Thu, 15 Jul 2004 00:24:07 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id 4EBF821184 for ; Thu, 15 Jul 2004 00:24:06 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id A05B989830 for ; Thu, 15 Jul 2004 07:38:11 +0300 (EEST) Message-ID: <40F60901.40209@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "eap@frascone.com" Subject: Re: [eap] [Fwd: I-D ACTION:draft-clancy-eap-pax-00.txt] References: <40F60831.3030705@piuha.net> In-Reply-To: <40F60831.3030705@piuha.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 15 Jul 2004 07:33:05 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Something is wrong in my e-mail. Lets try with copy pasting the text from the announcement instead: A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : EAP Password Authenticated Exchange Author(s) : W. Arbaugh, T. Clancy Filename : draft-clancy-eap-pax-00.txt Pages : 20 Date : 2004-7-14 This Internet Draft defines a provably secure Extensible Authentication Protocol method called EAP-PAX. This method is designed for bootstrapping a shared key-based authentication protocol with a weak preshared password or PIN. It includes key management features, is secure against dictionary attacks, includes optional support for identity protection, and avoids intellectual property rights associated with competing EAP methods. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-clancy-eap-pax-00.txt _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Thu Jul 15 03:00:53 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id DAA29284 for ; Thu, 15 Jul 2004 03:00:53 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 0CA4D20E60; Thu, 15 Jul 2004 02:46:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 0256B202F7; Thu, 15 Jul 2004 02:46:02 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2029E20290 for ; Thu, 15 Jul 2004 02:45:00 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id 81BC91FF6D for ; Thu, 15 Jul 2004 02:44:57 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6F6x2T1029641; Thu, 15 Jul 2004 02:59:02 -0400 (EDT) From: Nick Petroni To: Florent Bersani Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 In-Reply-To: <40C6D7DF.7050203@rd.francetelecom.fr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 15 Jul 2004 02:59:02 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Florent and all, As Monday 7/19 is the cut-off for document submission, I would like to ask for help in resolving as much of the remaining issues as possible in the state machine document. Here is a list of necessary changes as I see them for Issue 248. Please let me know how these look in principle and contribute text if possible. I also will attempt to contribute text over the next couple of days. Thanks, nick Comment #5 - Technical No changes. Comment #6 - Technical Request text to clarify the use the methodState variable in section 4.2. Comment #9 - Technical Request text amendments for policy functions to clarify that multiple authentication methods are not expected or propose alternate solution. Comment #10 - Technical - change the text of TIMEOUT_FAILURE in section 5.5 and TIMEOUT_FAILURE2 in section 7.5 to the following: "A final state indicating failure because no response has been received. Because no response was received, no new message (including failure) should be sent to the peer." Comment #12 - Technical Supersede by the resolution of Issue 251 (TBD). Comment #14 - Technical Request text to describe the possible DoS issues and possible mitigation techniques. Specific changes to the SM necessary to achieve such mitigations would be great. Comment #17 - Technical Request text for section 7 and/or section 8 to describe expected behavior when aaaEapRespData is NONE. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From bvnpdcujkkwyvi@msn.com Thu Jul 15 08:04:04 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id IAA14185 for ; Thu, 15 Jul 2004 08:04:03 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1Bl4y4-0000tI-MT for eap-archive@ietf.org; Thu, 15 Jul 2004 08:04:04 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1Bl4x7-0000Zd-00 for eap-archive@ietf.org; Thu, 15 Jul 2004 08:03:06 -0400 Received: from [65.246.255.50] (helo=mx2.foretec.com) by ietf-mx with esmtp (Exim 4.12) id 1Bl4wK-0000Fi-00 for eap-archive@ietf.org; Thu, 15 Jul 2004 08:02:16 -0400 Received: from [80.230.144.210] (helo=65.246.255.50) by mx2.foretec.com with smtp (Exim 4.24) id 1Bl4wK-0003hX-3h for eap-archive@ietf.org; Thu, 15 Jul 2004 08:02:16 -0400 Received: from 96.77.16.240 by 80.230.144.210; Thu, 15 Jul 2004 12:01:58 -0100 Message-ID: From: "Rosella Mccollum" Reply-To: "Rosella Mccollum" To: eap-archive@ietf.org Subject: VIAGRA, PHENTERMINE & MORE! Date: Thu, 15 Jul 2004 15:54:58 +0300 X-Mailer: AOL 7.0 for Windows US sub 118 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--441995341992864774" X-Priority: 3 X-MSMail-Priority: Normal X-Spam-Flag: YES X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: Yes, hits=19.1 required=5.0 tests=BANG_MORE,FORGED_AOL_HTML, FORGED_MUA_AOL_FROM,FORGED_RCVD_NET_HELO,HTML_MESSAGE, LINES_OF_YELLING,MIME_HTML_NO_CHARSET,MIME_HTML_ONLY, MIME_HTML_ONLY_MULTI,MISSING_MIMEOLE,MISSING_OUTLOOK_NAME, RCVD_NUMERIC_HELO,SUBJ_ALL_CAPS,SUBJ_VIAGRA,VIAGRA autolearn=no version=2.60 X-Spam-Report: * 2.8 SUBJ_VIAGRA Subject includes "viagra" * 0.3 RCVD_NUMERIC_HELO Received: contains a numeric HELO * 1.2 BANG_MORE BODY: Talks about more with an exclamation! * 1.9 VIAGRA BODY: Plugs Viagra * 0.0 HTML_MESSAGE BODY: HTML included in message * 0.0 LINES_OF_YELLING BODY: A WHOLE LINE OF YELLING DETECTED * 0.1 MIME_HTML_ONLY BODY: Message only has text/html MIME parts * 0.7 MIME_HTML_NO_CHARSET RAW: Message text in HTML without charset * 0.6 SUBJ_ALL_CAPS Subject is all capitals * 3.0 FORGED_RCVD_NET_HELO Host HELO'd using the wrong IP network * 1.2 MISSING_MIMEOLE Message has X-MSMail-Priority, but no X-MimeOLE * 4.3 FORGED_MUA_AOL_FROM Forged mail pretending to be from AOL (by From) * 1.8 FORGED_AOL_HTML AOL can't send HTML message only * 1.1 MIME_HTML_ONLY_MULTI Multipart message only has text/html MIME parts * 0.1 MISSING_OUTLOOK_NAME Message looks like Outlook, but isn't ----441995341992864774 Content-Type: text/html; Content-Transfer-Encoding: quoted-printable

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----441995341992864774-- From eap-admin@frascone.com Thu Jul 15 08:06:07 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id IAA14294 for ; Thu, 15 Jul 2004 08:06:07 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8447821237; Thu, 15 Jul 2004 07:47:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4AF7F20E85; Thu, 15 Jul 2004 07:47:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 68F1B20E94 for ; Thu, 15 Jul 2004 07:46:16 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id 4242C2030B for ; Thu, 15 Jul 2004 07:46:14 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6FC0KT1004806; Thu, 15 Jul 2004 08:00:20 -0400 (EDT) From: Nick Petroni To: Florent Bersani Cc: "eap@frascone.com" , Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 15 Jul 2004 08:00:20 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) A proposal from Pasi... Looks good to me. > Comment #17 - Technical > Request text for section 7 and/or section 8 to > describe expected behavior when aaaEapRespData is NONE. Here's also some text related to issue 248 comment #17: In Sections 6.1.1 and 7.1.2 change "aaaEapResp ... Indicates an EAP response is available for processing by the AAA server. aaaEapRespData ... The EAP packet to be processed." to "aaaEapResp ... Usually indicates that an EAP response, stored in aaaEapRespData, is available for processing by the AAA server. If aaaEapRespData is set to NONE, indicates that the AAA server should send the initial EAP request. aaaEapRespData ... The EAP packet to be processed or NONE." _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 01:18:21 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id BAA20792 for ; Fri, 16 Jul 2004 01:18:20 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id BBE912103C; Fri, 16 Jul 2004 01:02:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 773ED21030; Fri, 16 Jul 2004 01:02:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id AEBC421030 for ; Fri, 16 Jul 2004 01:01:04 -0400 (EDT) Received: from p-mail2.rd.francetelecom.com (p-mail2.rd.francetelecom.com [195.101.245.16]) by mail.frascone.com (Postfix) with ESMTP id B15422100F for ; Fri, 16 Jul 2004 01:01:02 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp1.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 16 Jul 2004 07:14:54 +0200 Received: from rd.francetelecom.fr ([10.193.106.18]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Fri, 16 Jul 2004 07:14:52 +0200 Message-ID: <40F7645F.1040800@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "eap@frascone.com" , Pasi.Eronen@nokia.com Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Jul 2004 05:14:53.0332 (UTC) FILETIME=[D3A06D40:01C46AF3] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 07:15:11 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Nick Petroni wrote: >A proposal from Pasi... Looks good to me. > > So does it for me :-) > > >>Comment #17 - Technical >> Request text for section 7 and/or section 8 to >> describe expected behavior when aaaEapRespData is NONE. >> >> > >Here's also some text related to issue 248 comment #17: > > In Sections 6.1.1 and 7.1.2 change > > "aaaEapResp ... Indicates an EAP response is available for > processing by the AAA server. > > aaaEapRespData ... The EAP packet to be processed." > > to > > "aaaEapResp ... Usually indicates that an EAP response, stored in > aaaEapRespData, is available for processing by the AAA server. > If aaaEapRespData is set to NONE, indicates that the AAA server > should send the initial EAP request. > > aaaEapRespData ... The EAP packet to be processed or NONE." > > > > > > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 11:21:21 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA08640 for ; Fri, 16 Jul 2004 11:21:20 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D43801FC68; Fri, 16 Jul 2004 11:07:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4C0C721491; Fri, 16 Jul 2004 11:07:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3BA0121491 for ; Fri, 16 Jul 2004 11:06:09 -0400 (EDT) Received: from p-mail1.rd.francetelecom.com (p-mail1.rd.francetelecom.com [195.101.245.15]) by mail.frascone.com (Postfix) with ESMTP id 324381FC68 for ; Fri, 16 Jul 2004 11:06:07 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 16 Jul 2004 17:20:00 +0200 Received: from rd.francetelecom.fr ([10.193.106.45]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Fri, 16 Jul 2004 17:19:59 +0200 Message-ID: <40F7F234.2030404@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Jul 2004 15:19:59.0628 (UTC) FILETIME=[5BDD8CC0:01C46B48] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 17:20:20 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Nick, all I looked again at my comment #6 and the current text in the draft. I guess that my original comment was twofold: 1) Since among the 9 theoretically possible (methodState,decision) pairs, only 6 were allowed (namely (CONT,FAIL), (MAY_CONT,COND_SUCC), (MAY_CONT, FAIL), (DONE, COND_SUCC), (DONE, UNCOND_SUCC) and (DONE,FAIL), I took this as a hint that there might be simpler way to implement things... 1) While thinking on simpler ways, I came to question the usefulness of COND_SUCC: to me this decision value is harmful from a security POV. An attacker has no problem whatsoever to make the peer believe anything (i.e. success or failure) as soon as the peer has set COND_SUCC. So my comment was about: do we want to keep COND_SUCC? (same comment applies to MAY_CONT: I fail to see why we have (MAY_CONT,FAIL) - it could be replaced by (CONT,FAIL), couldn't it?) This reflexion led me to the mechanism EAP-PSK currently uses to (try to) end properly its dialog, see http://perso.rd.francetelecom.fr/bersani/EAP_PSK/draft-bersani-eap-psk-03-d.html#rflag for a presentation of this mechanism (sorry for this rude ad on EAP-PSK but I think that what's in there could clarify my comment... and possibly get me some feedback ;-)). After rereading the state machine draft , I believe that the text of section 4.2 is pretty clear (congratulations ;-)). My only remaining unanswered question is: do we want to keep COND_SUCC? I am in favor of deleting it (as a legacy venue for irritating - though perhaps not very important - security trouble)... ... but I understand that I am probably *unfortunately* the only one to have this position and that it is probably too late to change this direction (don't worry, I am not going at this point to try and reopen issues like #26 http://www.drizzle.com/~aboba/EAP/eapissues.html#Issue%2026 or others by saying that the current EAP-Success/Failure packet is not only useless but harmful ;-)) As a fall-back solution, I would recommend inserting something like the following text advising that COND_SUCC may be dangerous: "In case the peer reaches the decision COND_SUCC, please note that the peer is vulnerable to an active attacker that may easily lead him to believe that the authenticator has reached any decision the attacker chooses. In situations where security is a concern, it is RECOMMENDED to avoid using the value COND_SUCC of the decision variable" What do you think? Florent, so tired he does not doubt that he may well again be totally off the rocket :-( Nick Petroni wrote: >Florent and all, > >As Monday 7/19 is the cut-off for document submission, I would like to ask >for help in resolving as much of the remaining issues as possible in the >state machine document. Here is a list of necessary changes as I see them >for Issue 248. Please let me know how these look in principle and >contribute text if possible. I also will attempt to contribute text over >the next couple of days. > >Thanks, >nick > >... > >Comment #6 - Technical > Request text to clarify the use the methodState variable in section > 4.2. > > > Florent Bersani wrote: > Comment #6 - Technical > > This is about DONE, CONT and MAY_CONT/UNCOND_SUCC, COND_SUCC and FAIL. > > While I do not doubt that there are could technical reasons to use > these variables (rather than simply CONT and DONE) and that the EAP > state machine does not claim to be THE way to implement EAP (in its > introduction "The State Machine and associated model are informative > only. Implementations may achieve the same results using different > methods"), I think that giving briefly the rationales behind this > choice (which is not explicit in section 4.2 IMHO) would help the > reader. In particular, giving an example of MAY_CONT's usefulness. > > About the decision variable, here also an explanation of the design > (maybe with an example) could help. Indeed, it seems to me that not > all pairs (state, decision) are acceptable so state/decision are not > totally independent. Here again, giving an example why COND_SUCC was > introduced could help. > > I think this concern is also related to the conditions in the state > machine that allow the peer to transition to success or failure. They > do not appear to be either trivial or symmetric. The newbie I > unfortunately am, needs much more time to (fully) understand them than > any other transition condition in the state machine. Bernard for > instance questioned about these Success/Failure transitions in Issue > 229. For instance, I am wondering, how the condition "altAccept && > methodState != CONT && decision == FAIL" may occur. > > Also in section 4.2 I tend to feel dizzy with some text in the > paragraph methodState=DONE: "If both (a) the server has informed us > that it will allow access and the next packet will be EAP Success,and > (b) we're willing to use this access, set decision=UNCOND SUCC." I > guess that condition (a) should rather be formulated in terms of > altAccept, shouldn't it? As a reminder, this has been clarified. I was totally wrong and confused. altAccept referred to lower layer indications and not method protected result indication. altAccept has been relaebeled lowerLayerAccept (or something like this IINM). > Indeed while IIRC RFC 3748 mandates (in section 4.2 "The authenticator > MUST transmit an EAP packet with the Code field set to 3 (Success)" > that a success packet be sent, this does not guarantee that the peer > will ever receive it. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 11:30:14 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA09301 for ; Fri, 16 Jul 2004 11:30:14 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id C14071FC68; Fri, 16 Jul 2004 11:16:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 70DF421499; Fri, 16 Jul 2004 11:16:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 0D7082149A for ; Fri, 16 Jul 2004 11:15:40 -0400 (EDT) Received: from p-mail2.rd.francetelecom.com (p-mail2.rd.francetelecom.com [195.101.245.16]) by mail.frascone.com (Postfix) with ESMTP id 0D41621499 for ; Fri, 16 Jul 2004 11:15:38 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 16 Jul 2004 17:29:43 +0200 Received: from rd.francetelecom.fr ([10.193.106.45]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Fri, 16 Jul 2004 17:29:42 +0200 Message-ID: <40F7F47A.9010201@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Jul 2004 15:29:42.0409 (UTC) FILETIME=[B73ADF90:01C46B49] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 17:30:02 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Nick, all Here is some proposed text: Add to the definition of Policy.getNextMethod (section 5.4 page 20 of the .pdf): "Policy.getNextMethod MUST comply to RFC 3748 that forbids, in its Section 2.1, the use of sequences of authentication methods within an EAP conversation. Hence, if an authentication method has already been executed within an EAP dialog, Policy.getNextMethod MUST NOT propose another authentication method within the same EAP dialog" What do you think of it? Florent Nick Petroni wrote: >Florent and all, > >As Monday 7/19 is the cut-off for document submission, I would like to ask >for help in resolving as much of the remaining issues as possible in the >state machine document. Here is a list of necessary changes as I see them >for Issue 248. Please let me know how these look in principle and >contribute text if possible. I also will attempt to contribute text over >the next couple of days. > >Thanks, >nick > > > >Comment #9 - Technical > Request text amendments for policy functions to clarify that > multiple authentication methods are not expected or propose > alternate solution. > > Florent Bersani wrote: > Comment #9 - Technical > > Apparently Figure 4 (EAP Standalone Authenticator State Machine) > leaves the door open to a sequence of EAP authentication methods > (which is explicitly forbidden by RFC 3748 section 2.1 "However, the > peer and authenticator MUST utilize only one authentication method > (Type 4 or greater) within an EAP conversation"). This behavior may be > prevented thanks to Policy.getDecision or PolicygetNextMethod... but I > do not find this is exactly a matter of policy and at least, this > should be pointed out (that the policy MUST forbid this behavior). _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 11:43:50 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA10265 for ; Fri, 16 Jul 2004 11:43:50 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B88E1214A6; Fri, 16 Jul 2004 11:29:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 99FA1214A2; Fri, 16 Jul 2004 11:29:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E7140214A2 for ; Fri, 16 Jul 2004 11:28:37 -0400 (EDT) Received: from p-mail2.rd.francetelecom.com (p-mail2.rd.francetelecom.com [195.101.245.16]) by mail.frascone.com (Postfix) with ESMTP id 64B572059B for ; Fri, 16 Jul 2004 11:28:35 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 16 Jul 2004 17:42:41 +0200 Received: from rd.francetelecom.fr ([10.193.106.45]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Fri, 16 Jul 2004 17:42:40 +0200 Message-ID: <40F7F784.7040203@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Jul 2004 15:42:40.0601 (UTC) FILETIME=[87118C90:01C46B4B] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 17:43:00 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Nick all, see in-line Florent, who won't fight on wordsmithing ;-) Nick Petroni wrote: >Florent and all, > >As Monday 7/19 is the cut-off for document submission, I would like to ask >for help in resolving as much of the remaining issues as possible in the >state machine document. Here is a list of necessary changes as I see them >for Issue 248. Please let me know how these look in principle and >contribute text if possible. I also will attempt to contribute text over >the next couple of days. > >Thanks, >nick > > > >Comment #10 - Technical > - change the text of TIMEOUT_FAILURE in section 5.5 and > TIMEOUT_FAILURE2 in section 7.5 to the following: > "A final state indicating failure because no response has been > received. Because no response was received, no new message > (including failure) should be sent to the peer." > > Great! Perhaps even a little bit that text by appending: "this is why this state needs to be distinct of the FAILURE state" Florent Bersani wrote: > Comment #10 - Technical > > Why include a separate TIMEOUT_FAILURE State? Why not use the FAILURE > state? _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 11:53:22 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA10851 for ; Fri, 16 Jul 2004 11:53:22 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id AEB24214AF; Fri, 16 Jul 2004 11:32:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 85F30211D1; Fri, 16 Jul 2004 11:32:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 91F88203A4 for ; Fri, 16 Jul 2004 11:31:49 -0400 (EDT) Received: from p-mail1.rd.francetelecom.com (p-mail1.rd.francetelecom.com [195.101.245.15]) by mail.frascone.com (Postfix) with ESMTP id 345A5211D1 for ; Fri, 16 Jul 2004 11:31:47 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 16 Jul 2004 17:45:53 +0200 Received: from rd.francetelecom.fr ([10.193.106.45]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Fri, 16 Jul 2004 17:45:52 +0200 Message-ID: <40F7F844.6080207@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Jul 2004 15:45:52.0496 (UTC) FILETIME=[F9726700:01C46B4B] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 17:46:12 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Nick Petroni wrote: >Florent and all, > >As Monday 7/19 is the cut-off for document submission, I would like to ask >for help in resolving as much of the remaining issues as possible in the >state machine document. Here is a list of necessary changes as I see them >for Issue 248. Please let me know how these look in principle and >contribute text if possible. I also will attempt to contribute text over >the next couple of days. > >Thanks, >nick > > >Comment #12 - Technical > Supersede by the resolution of Issue 251 (TBD). > > It would be great if some luminaries could enlighten us on this!!!! Florent, who hates to spend time to educate others but loves being educated ;-) > Comment #12 - Technical > > This one is stupid but what happens, according to Figure 4, when the > standalone authenticator fails directly, i.e. starts by INITIALIZE, > transitions to SELECT_ACTION where Policy.getDecision replies FAILURE > and thus transitions to FAILURE - in the FAILURE state, I bet there is > some problem with eapReqData = buildFailure(currentId) since > currentId=NONE _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 11:57:39 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA11276 for ; Fri, 16 Jul 2004 11:57:38 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D05282059B; Fri, 16 Jul 2004 11:38:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 19D761FC64; Fri, 16 Jul 2004 11:38:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 7F68D2059B for ; Fri, 16 Jul 2004 11:37:51 -0400 (EDT) Received: from p-mail1.rd.francetelecom.com (p-mail1.rd.francetelecom.com [195.101.245.15]) by mail.frascone.com (Postfix) with ESMTP id 788B71FC0E for ; Fri, 16 Jul 2004 11:37:49 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 16 Jul 2004 17:51:55 +0200 Received: from rd.francetelecom.fr ([10.193.106.45]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Fri, 16 Jul 2004 17:51:54 +0200 Message-ID: <40F7F9AF.7000100@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Jul 2004 15:51:54.0693 (UTC) FILETIME=[D1554750:01C46B4C] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 17:52:15 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Nick, all Nick Petroni wrote: >Florent and all, > >As Monday 7/19 is the cut-off for document submission, I would like to ask >for help in resolving as much of the remaining issues as possible in the >state machine document. Here is a list of necessary changes as I see them >for Issue 248. Please let me know how these look in principle and >contribute text if possible. I also will attempt to contribute text over >the next couple of days. > >Thanks, >nick > > > >Comment #14 - Technical > Request text to describe the possible DoS issues and possible > mitigation techniques. Specific changes to the SM necessary to > achieve such mitigations would be great. > I am reluctant to provide text and modifications to the SM for this one (*although I already did in some of my previous mails*) because my understanding was that the group had not reached consensus on whether this issue has to be handled and how this has to be done... If the group is (apart from silent) against this issue (and the stupid DoS ones in general) which seems to be the case IINM, then I might want to save my text/modifications for some other purposes... ;-) Florent Florent Bersani wrote: > Comment #14 - Technical > > I am totally novice to DoS (I found a lot of papers on the subject, > for instance related to IKE - I plan to read them soon :-)) so this > point is probably not very important (my understanding is that one of > the difficulties with DoS is to understand what is really relevant and > what rather belongs to the .11 microwave oven attack, another one > could be set the trade off between DoS resilience and "efficiency"). > > It just seems to me that Figure 4 prevents the standalone > authenticator from ignoring (bogus) NAKs. Indeed, let us consider a > corporate WLAN deployment where exactly one EAP method is allowed - so > that no valid user will ever NAK. In this setting, there is no point > in processing the NAK, possibly loosing the valid user's response if > the attacker's NAK arrived first and starting all over. I did not find > text on this in RFC 3748 (the text I found was about preventing NAKs > when a response to a method has already been received) which is not > our case here. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 12:08:15 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA11997 for ; Fri, 16 Jul 2004 12:08:14 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 296BD1FC10; Fri, 16 Jul 2004 11:54:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D27611FCD3; Fri, 16 Jul 2004 11:54:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id ABC111FCD3 for ; Fri, 16 Jul 2004 11:54:00 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 90A9C1FC10 for ; Fri, 16 Jul 2004 11:53:58 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6GG5rB15396 for ; Fri, 16 Jul 2004 09:05:54 -0700 From: Bernard Aboba To: eap@frascone.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Re: Proposed Resolution to Issue 243: State Synchronization Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 09:05:53 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) To take a concrete example: Peer Attacker Server EAP dialog (e.g. EAP-PSK) <------------------------------------> Protected result indication (e.g. Done success delivered by the server to the peer) <------------------------------------- Protected result indication (e.g. Done success delivered by the server to the peer) intercepted by the attacker -------------->X EAP-Success <-------------- [BA] So the attacker forges an EAP Success? Protected result indication (e.g. Done success delivered by the server to the peer) retransmitted by the server <------------------------------------- [BA] Yes, in this example the attacker causes the peer and server to be de-synchronized. The peer thinks it has succeeded -- and the server will eventually fail. The EAP peer is not listening any more. [BA] The problem isn't that the EAP peer isn't listening -- it is that it is now in a state where it will discard the retransmitted protected result indication. I guess my temporary proposed resolution would be to explicitly give an example like the one I have given and allude to the distributed consensus to say that it is *not* what is meant. [BA] EAP methods are not negotiating ciphersuites or parameters by which subsequent data may be carried. Therefore the "state synchronization" is really about the internal state of the EAP method. The reason we should care about this is that if the method is successful, the EAP server and/or peer may leave behind internal state that may be reused for things like fast resume. So that is I think what is being referred to here -- ensuring the consistency of the cached state. For example, in the above situation, the peer may have created a session cache entry which it may try to reuse in a subsequent authentication. The "session resume" will fail because the EAP server did not consider the initial conversation a success and did not create a session cache entry. So the synchronization may take more than one round. [FB] I don't have text. This document has already been approved by vote of 802.11 with the existing text. Every technical change results in a 1+ month delay which in turn causes delays in other documents. We've been through this back and forth for 3 round-trips now -- and unless I see a consensus for changing the existing text, and convergence on what the replacement text is, then we are going to go with what we have. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 12:10:15 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA12091 for ; Fri, 16 Jul 2004 12:10:15 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B780D20FE6; Fri, 16 Jul 2004 11:56:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 28CFA1FCC2; Fri, 16 Jul 2004 11:56:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6E8EB1FC10 for ; Fri, 16 Jul 2004 11:55:10 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id C4BF31FC0E for ; Fri, 16 Jul 2004 11:55:08 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6GG9GT1009132; Fri, 16 Jul 2004 12:09:16 -0400 (EDT) From: Nick Petroni To: Florent Bersani Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 In-Reply-To: <40F7F9AF.7000100@rd.francetelecom.fr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 12:09:15 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > >Comment #14 - Technical > > Request text to describe the possible DoS issues and possible > > mitigation techniques. Specific changes to the SM necessary to > > achieve such mitigations would be great. > > > I am reluctant to provide text and modifications to the SM for this one > (*although I already did in some of my previous mails*) because my > understanding was that the group had not reached consensus on whether > this issue has to be handled and how this has to be done... Sorry, I should have been more clear on this. I think we are agreed that no changes should take place to the SM itself. However, some of the possible protocol changes pointed out by yourself and John Vollbrecht, and discussed on this list, could be described at least in terms of the vulnerabilities themselves. Jari mentioned that such a description might be fitting: http://mail.frascone.com/pipermail/eap/2004-June/002580.html "As a result, I would recommend documenting the specific vulnerabilities to accepting NAKs and Failures. I think RFC 3748 already has some general text about this, but it would be OK for the state machine document to talk about specific issues related to specific state transitions. I am a bit uneasy about changing the actual diagram or behaviour, however. " This seems the most prudent to me and it was the text I was requesting. > If the group is (apart from silent) against this issue (and the stupid > DoS ones in general) which seems to be the case IINM, then I might want > to save my text/modifications for some other purposes... ;-) I agree modifications would not be the consensus of the group, but I think everyone recognizes these attacks are feasible. Thanks, nick _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 12:11:14 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA12141 for ; Fri, 16 Jul 2004 12:11:14 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id EDE0B2037C; Fri, 16 Jul 2004 11:57:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A9CAB1FCC2; Fri, 16 Jul 2004 11:57:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6CEA12036D for ; Fri, 16 Jul 2004 11:56:41 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id BFE3A1FC0E for ; Fri, 16 Jul 2004 11:56:39 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6GGAlT1009149; Fri, 16 Jul 2004 12:10:47 -0400 (EDT) From: Nick Petroni To: Florent Bersani Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 In-Reply-To: <40F7F784.7040203@rd.francetelecom.fr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 12:10:47 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > >Comment #10 - Technical > > - change the text of TIMEOUT_FAILURE in section 5.5 and > > TIMEOUT_FAILURE2 in section 7.5 to the following: > > "A final state indicating failure because no response has been > > received. Because no response was received, no new message > > (including failure) should be sent to the peer." > > > > > Great! > Perhaps even a little bit that text by appending: "this is why this > state needs to be distinct of the FAILURE state" Sure, it's fine with me. I think it could be determined by reading the states themselves, but this text is by no means excessive. nick _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 12:25:07 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA13114 for ; Fri, 16 Jul 2004 12:25:06 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2A5241FEF6; Fri, 16 Jul 2004 12:09:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 53BEA1FF96; Fri, 16 Jul 2004 12:09:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 9B03A1FEF6 for ; Fri, 16 Jul 2004 12:08:17 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id DD6AF1FC78 for ; Fri, 16 Jul 2004 12:08:15 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6GGMNT1009454; Fri, 16 Jul 2004 12:22:23 -0400 (EDT) From: Nick Petroni To: Florent Bersani Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 In-Reply-To: <40F7F234.2030404@rd.francetelecom.fr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 12:22:23 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > This reflexion led me to the mechanism EAP-PSK currently uses to (try > to) end properly its dialog, see > http://perso.rd.francetelecom.fr/bersani/EAP_PSK/draft-bersani-eap-psk-03-d.html#rflag > for a presentation of this mechanism (sorry for this rude ad on EAP-PSK > but I think that what's in there could clarify my comment... and > possibly get me some feedback ;-)). > > After rereading the state machine draft , I believe that the text of > section 4.2 is pretty clear (congratulations ;-)). My only remaining > unanswered question is: do we want to keep COND_SUCC? I think the answer is we have to. Some methods simply will not know whether or not they are complete and actually must wait for Success or Failure or another request to be received. We cannot exclude (for legacy purposes) methods that cannot say for certain that they are not complete or do not know the success of the method itself. COND_SUCC is the only way to handle methods like MD5 where you have no idea if you authenticated correctly or not. you have to wait for success or failure. > ... but I understand that I am probably *unfortunately* the only one to > have this position and that it is probably too late to change this > direction (don't worry, I am not going at this point to try and reopen > issues like #26 > http://www.drizzle.com/~aboba/EAP/eapissues.html#Issue%2026 or others by > saying that the current EAP-Success/Failure packet is not only useless > but harmful ;-)) I don't think you could change it if you wanted to... I think the charter is pretty clear that existing methods can't be made obsolete. I could be wrong though. > As a fall-back solution, I would recommend inserting something like the > following text advising that COND_SUCC may be dangerous: > > "In case the peer reaches the decision COND_SUCC, please note that the > peer is vulnerable to an active attacker that may easily lead him to > believe that the authenticator has reached any decision the attacker > chooses. In situations where security is a concern, it is RECOMMENDED to > avoid using the value COND_SUCC of the decision variable" This would be a good recommendation to method writers I think, but I am not sure a general claim about setting that variable alone is enough. We could add some guidelines for method authors in the Implementation Considerations section or perhaps better somewhere else? IMHO, the middle of the SM description is not the place to get into this. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 12:26:36 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA13273 for ; Fri, 16 Jul 2004 12:26:35 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D814120532; Fri, 16 Jul 2004 12:09:16 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B559E2077B; Fri, 16 Jul 2004 12:09:09 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 000C51FEF6 for ; Fri, 16 Jul 2004 12:08:44 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id 33C6C1FC78 for ; Fri, 16 Jul 2004 12:08:43 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6GGMpT1009464; Fri, 16 Jul 2004 12:22:51 -0400 (EDT) From: Nick Petroni To: Florent Bersani Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 In-Reply-To: <40F7F47A.9010201@rd.francetelecom.fr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 12:22:51 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Looks good to me. Thanks for all of the comments, suggestions, and text. Best, nick Nick L. Petroni, Jr. Graduate Student, Computer Science Maryland Information Systems Security Lab University of Maryland http://www.cs.umd.edu/~npetroni On Fri, 16 Jul 2004, Florent Bersani wrote: > Nick, all > > Here is some proposed text: > > Add to the definition of Policy.getNextMethod (section 5.4 page 20 of > the .pdf): > "Policy.getNextMethod MUST comply to RFC 3748 that forbids, in its > Section 2.1, the use of sequences of authentication methods within an > EAP conversation. Hence, if an authentication method has already been > executed within an EAP dialog, Policy.getNextMethod MUST NOT propose > another authentication method within the same EAP dialog" > > What do you think of it? > > Florent > > Nick Petroni wrote: > > >Florent and all, > > > >As Monday 7/19 is the cut-off for document submission, I would like to ask > >for help in resolving as much of the remaining issues as possible in the > >state machine document. Here is a list of necessary changes as I see them > >for Issue 248. Please let me know how these look in principle and > >contribute text if possible. I also will attempt to contribute text over > >the next couple of days. > > > >Thanks, > >nick > > > > > > > >Comment #9 - Technical > > Request text amendments for policy functions to clarify that > > multiple authentication methods are not expected or propose > > alternate solution. > > > > > Florent Bersani wrote: > > > Comment #9 - Technical > > > > Apparently Figure 4 (EAP Standalone Authenticator State Machine) > > leaves the door open to a sequence of EAP authentication methods > > (which is explicitly forbidden by RFC 3748 section 2.1 "However, the > > peer and authenticator MUST utilize only one authentication method > > (Type 4 or greater) within an EAP conversation"). This behavior may be > > prevented thanks to Policy.getDecision or PolicygetNextMethod... but I > > do not find this is exactly a matter of policy and at least, this > > should be pointed out (that the policy MUST forbid this behavior). > > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 12:53:17 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA15106 for ; Fri, 16 Jul 2004 12:53:16 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D04911FC78; Fri, 16 Jul 2004 12:39:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 40EC520485; Fri, 16 Jul 2004 12:39:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id F41022048B for ; Fri, 16 Jul 2004 12:38:17 -0400 (EDT) Received: from p-mail2.rd.francetelecom.com (p-mail2.rd.francetelecom.com [195.101.245.16]) by mail.frascone.com (Postfix) with ESMTP id F293A1FC78 for ; Fri, 16 Jul 2004 12:38:15 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 16 Jul 2004 18:52:21 +0200 Received: from rd.francetelecom.fr ([10.193.106.45]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Fri, 16 Jul 2004 18:52:19 +0200 Message-ID: <40F807D8.9050600@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Jul 2004 16:52:20.0114 (UTC) FILETIME=[42409F20:01C46B55] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 18:52:40 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Nick, see in-line Florent Nick Petroni wrote: >>This reflexion led me to the mechanism EAP-PSK currently uses to (try >>to) end properly its dialog, see >>http://perso.rd.francetelecom.fr/bersani/EAP_PSK/draft-bersani-eap-psk-03-d.html#rflag >>for a presentation of this mechanism (sorry for this rude ad on EAP-PSK >>but I think that what's in there could clarify my comment... and >>possibly get me some feedback ;-)). >> >>After rereading the state machine draft , I believe that the text of >>section 4.2 is pretty clear (congratulations ;-)). My only remaining >>unanswered question is: do we want to keep COND_SUCC? >> >> >I think the answer is we have to. Some methods simply will not know >whether or not they are complete and actually must wait for Success or >Failure or another request to be received. We cannot exclude (for >legacy purposes) methods that cannot say for certain that they are not >complete or do not know the success of the method itself. > Aaaaaaaaaaaaaarghn the L word in a protocol that apparently is becoming pervasive for the future (invading IKEv2, IEEE 802.1X, IEEE 802.11, IEEE 802.16e, and why not IEEE 802.20)! I am aware of what you say but I respectfully and strongly disagree.: if EAP is going to be a protocol of the future why cripple it with problems of the past. This being said (and I expected your answer), I won't keep bothering with old (and given the point where we are now, slightly unconstructive) remarks. > COND_SUCC is >the only way to handle methods like MD5 where you have no idea if you >authenticated correctly or not. you have to wait for success or failure. > > Again I wish that MD5-Challenge would disappear ;-) > > >>... but I understand that I am probably *unfortunately* the only one to >>have this position and that it is probably too late to change this >>direction (don't worry, I am not going at this point to try and reopen >>issues like #26 >>http://www.drizzle.com/~aboba/EAP/eapissues.html#Issue%2026 or others by >>saying that the current EAP-Success/Failure packet is not only useless >>but harmful ;-)) >> >> >I don't think you could change it if you wanted to... I think the charter >is pretty clear that existing methods can't be made obsolete. I could be >wrong though. > > No, no I think you are right > > >>As a fall-back solution, I would recommend inserting something like the >>following text advising that COND_SUCC may be dangerous: >> >>"In case the peer reaches the decision COND_SUCC, please note that the >>peer is vulnerable to an active attacker that may easily lead him to >>believe that the authenticator has reached any decision the attacker >>chooses. In situations where security is a concern, it is RECOMMENDED to >>avoid using the value COND_SUCC of the decision variable" >> >> >This would be a good recommendation to method writers I think, but I am >not sure a general claim about setting that variable alone is enough. > I think that you have seen only the aspect: "a good EAP method SHOULD provide protected result indications to avoid using COND_SUCC" but you have overlooked the aspect "EAP peer and server SHOULD use only good EAP methods" ;-) I agree that the EAP state machine is probably not the best doc for his manifesto but since it is the State Machine that introduces COND_SUCC (which is not mandated by RFC 3748), then I'd recommend providing guidance on the usage of this "dangerous" variable. > We >could add some guidelines for method authors in the Implementation >Considerations section or perhaps better somewhere else? IMHO, the >middle of the SM description is not the place to get into this. > > The IEEE 802 requirements probably have a word on protected result indications (I got to check that)... but I'd rather have IETF also state its opinion on EAP methods (while this could be done in a future IETF "how to design a good EAP method" document, I'd rather not count on the future and do what is possible now ;-) _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 14:30:21 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA22066 for ; Fri, 16 Jul 2004 14:30:20 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 672AE20585; Fri, 16 Jul 2004 14:16:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8A8E91FE2F; Fri, 16 Jul 2004 14:16:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 30B7820528 for ; Fri, 16 Jul 2004 14:15:39 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 83B8C1FD6A for ; Fri, 16 Jul 2004 14:15:36 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6GIRW223987 for ; Fri, 16 Jul 2004 11:27:32 -0700 From: Bernard Aboba To: eap@frascone.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Review of draft-adrangi-eap-network-discovery-01.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 11:27:32 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Comments on draft-adrangi-eap-network-discovery-01.txt: In general, I'm confused as to whether this document is specifying a general mechanism for providing hints relating to supported EAP-Response NAIs, or a 3GPP-specific mechanism for network discovery. If the former, I'd suggest that the title be changed to "EAP Identity Discovery Mechanism". If the latter, I'd suggest that the title be changed to: "3GPP Network Discovery Mechanism" Whichever tack you are taking should be clearly indicated in the Appendix. Section 1 - Introduction I think that in this section you want to present the general problem, which is how an EAP server can provide a hint to the EAP peer as to what identity is required in the EAP Response. That problem can occur even where there is only one network available, but the NAI provided is not one which the EAP server can recognize. For example, I roam to a guest network and because SSIDs are not unique, confusion results and the EAP peer presents the wrong NAI. While today it is possible to send a notification telling the user that something has gone wrong, wouldn't it be better if the problem could be fixed automatically? It just so happens that this problem needs to be solved for the purposes of network discovery, but I think that introducing this early on muddies the waters. For example, while one could argue that advertisement of mediating networks is something that belongs in the lower layer, providing a hint about the appropriate EAP-Response is clearly an EAP function. So I think this section needs to clearly articulate the general problem or else the document becomes vulnerable to the criticism that it represents a layer violation. Personally, I'd prefer if this section stated up front some basic aspects of NAIRealms, such as: * It builds on the NAI Realm syntax specified in RFC 2486bis; * It provides a hint as to the NAI Realm that the EAP Server is expecting, enabling improved robustness; * It is compatible with any EAP method; * It is unsecured -- and therefore may not be preferrable to secured identity selection mechanisms, such as RFC 3770; * It may enable additional credential disclosure attacks, although only if insecure EAP methods are used; Personally, I see mediating network discovery as only one application of this specification and would prefer that "Application" to be discussed later on, or even moved to an Appendix. Since the diagrams mention "AAA" I'm not even sure why the RADIUS disclaimer is necessary. You could just say that "this mechanism is compatible with either the RADIUS or Diameter protocol". Section 2 Somewhere I think you need to describe how the functionality in this specification affects behavior of [RFC3748] implementations, before launching into the grammar. Otherwise this is left to the imagination which is a bad thing given that 3GPP has requested a review of compatibility with [RFC3748]. I'd suggest that you need a section prior to the existing Section 2. Here is what Section 5.1 of [RFC3748] says: " The Identity Type is used to query the identity of the peer. Generally, the authenticator will issue this as the initial Request. An optional displayable message MAY be included to prompt the peer in the case where there is an expectation of interaction with a user. A Response of Type 1 (Identity) SHOULD be sent in Response to a Request with a Type of 1 (Identity). Some EAP implementations piggy-back various options into the Identity Request after a NUL-character. By default, an EAP implementation SHOULD NOT assume that an Identity Request or Response can be larger than 1020 octets." and later: " Implementation Note: The peer MAY obtain the Identity via user input. It is suggested that the authenticator retry the Identity Request in the case of an invalid Identity or authentication failure to allow for potential typos on the part of the user. It is suggested that the Identity Request be retried a minimum of 3 times before terminating the authentication. The Notification Request MAY be used to indicate an invalid authentication attempt prior to transmitting a new Identity Request (optionally, the failure MAY be indicated within the message of the new Identity Request itself)." Given the above, you need to describe the following: * How the specification interacts with other existing piggy-back practices. As I understand it, the grammar is intentionally made compatible with those existing extensions, but you should say that. * How retry behaviors are affected. How are endless loops prevented? For example, is the [RFC3748] behavior unmodified? * How errors are handled. Is Notification used to inform the user that something has gone wrong? Or do things just break without notice? * How the proposed functionality works with the minimum EAP MTU size of 1020 octets. Note that since the functionality in question is already used for other purposes, you can't necessarily assume that you have the entire EAP Request to yourself. How many NAIRealms can fit within what might be less than 1020 octets? Is this enough? Sections 3 and 4 - These sections seem to belong with Appendix A, especially since that Appendix already references them. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 14:54:17 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA23791 for ; Fri, 16 Jul 2004 14:54:16 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id AEA591FDF3; Fri, 16 Jul 2004 14:40:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2916D1FD6E; Fri, 16 Jul 2004 14:40:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3E73C1FD6E for ; Fri, 16 Jul 2004 14:40:00 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id 8E6921FD52 for ; Fri, 16 Jul 2004 14:39:58 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6GIs6T1013024; Fri, 16 Jul 2004 14:54:06 -0400 (EDT) From: Nick Petroni To: Florent Bersani Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 In-Reply-To: <40F807D8.9050600@rd.francetelecom.fr> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 14:54:06 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Florent, I certainly appreciate your opinion, but I hope you know that it is not me with whom you are disagreeing. I am simply explaining what I understand the constraints of this working group to be. I share your admonishment for using bad methods, but it has been my understanding from the beginning that these are our constraints. Sorry if this ruins your day :(. If I am wrong, someone else can certainly correct me freely. It has certainly happened on more than one occasion :). Take care, nick Nick L. Petroni, Jr. Graduate Student, Computer Science Maryland Information Systems Security Lab University of Maryland http://www.cs.umd.edu/~npetroni On Fri, 16 Jul 2004, Florent Bersani wrote: > Nick, > > see in-line > > Florent > > Nick Petroni wrote: > > >>This reflexion led me to the mechanism EAP-PSK currently uses to (try > >>to) end properly its dialog, see > >>http://perso.rd.francetelecom.fr/bersani/EAP_PSK/draft-bersani-eap-psk-03-d.html#rflag > >>for a presentation of this mechanism (sorry for this rude ad on EAP-PSK > >>but I think that what's in there could clarify my comment... and > >>possibly get me some feedback ;-)). > >> > >>After rereading the state machine draft , I believe that the text of > >>section 4.2 is pretty clear (congratulations ;-)). My only remaining > >>unanswered question is: do we want to keep COND_SUCC? > >> > >> > >I think the answer is we have to. Some methods simply will not know > >whether or not they are complete and actually must wait for Success or > >Failure or another request to be received. We cannot exclude (for > >legacy purposes) methods that cannot say for certain that they are not > >complete or do not know the success of the method itself. > > > Aaaaaaaaaaaaaarghn the L word in a protocol that apparently is becoming > pervasive for the future (invading IKEv2, IEEE 802.1X, IEEE 802.11, IEEE > 802.16e, and why not IEEE 802.20)! > > I am aware of what you say but I respectfully and strongly disagree.: if > EAP is going to be a protocol of the future why cripple it with problems > of the past. > > This being said (and I expected your answer), I won't keep bothering > with old (and given the point where we are now, slightly unconstructive) > remarks. > > > COND_SUCC is > >the only way to handle methods like MD5 where you have no idea if you > >authenticated correctly or not. you have to wait for success or failure. > > > > > Again I wish that MD5-Challenge would disappear ;-) > > > > > > >>... but I understand that I am probably *unfortunately* the only one to > >>have this position and that it is probably too late to change this > >>direction (don't worry, I am not going at this point to try and reopen > >>issues like #26 > >>http://www.drizzle.com/~aboba/EAP/eapissues.html#Issue%2026 or others by > >>saying that the current EAP-Success/Failure packet is not only useless > >>but harmful ;-)) > >> > >> > >I don't think you could change it if you wanted to... I think the charter > >is pretty clear that existing methods can't be made obsolete. I could be > >wrong though. > > > > > No, no I think you are right > > > > > > >>As a fall-back solution, I would recommend inserting something like the > >>following text advising that COND_SUCC may be dangerous: > >> > >>"In case the peer reaches the decision COND_SUCC, please note that the > >>peer is vulnerable to an active attacker that may easily lead him to > >>believe that the authenticator has reached any decision the attacker > >>chooses. In situations where security is a concern, it is RECOMMENDED to > >>avoid using the value COND_SUCC of the decision variable" > >> > >> > >This would be a good recommendation to method writers I think, but I am > >not sure a general claim about setting that variable alone is enough. > > > I think that you have seen only the aspect: "a good EAP method SHOULD > provide protected result indications to avoid using COND_SUCC" but you > have overlooked the aspect "EAP peer and server SHOULD use only good EAP > methods" ;-) > > I agree that the EAP state machine is probably not the best doc for his > manifesto but since it is the State Machine that introduces COND_SUCC > (which is not mandated by RFC 3748), then I'd recommend providing > guidance on the usage of this "dangerous" variable. > > > We > >could add some guidelines for method authors in the Implementation > >Considerations section or perhaps better somewhere else? IMHO, the > >middle of the SM description is not the place to get into this. > > > > > The IEEE 802 requirements probably have a word on protected result > indications (I got to check that)... but I'd rather have IETF also state > its opinion on EAP methods (while this could be done in a future IETF > "how to design a good EAP method" document, I'd rather not count on the > future and do what is possible now ;-) > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 16 15:24:16 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA26872 for ; Fri, 16 Jul 2004 15:24:16 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 1CFEB1FE3B; Fri, 16 Jul 2004 15:10:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 0ED201FE30; Fri, 16 Jul 2004 15:10:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 1B9E21FE30 for ; Fri, 16 Jul 2004 15:09:46 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id 4E8351FD6E for ; Fri, 16 Jul 2004 15:09:44 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id E914B8982E; Fri, 16 Jul 2004 22:23:50 +0300 (EEST) Message-ID: <40F82A12.7010707@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Florent Bersani Cc: Nick Petroni , "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 16 Jul 2004 22:18:42 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Florent, Nick, First: thanks for going through the remaining issues! And then to the "L" issue: >>Aaaaaaaaaaaaaarghn the L word in a protocol that apparently is becoming >>pervasive for the future (invading IKEv2, IEEE 802.1X, IEEE 802.11, IEEE >>802.16e, and why not IEEE 802.20)! Welcome to the real world :-( >>I am aware of what you say but I respectfully and strongly disagree.: if >>EAP is going to be a protocol of the future why cripple it with problems >>of the past. (snip) >>Again I wish that MD5-Challenge would disappear ;-) Fortunately or unfortunately, EAP is already deployed. We have created this working group in the IETF to "fully document and improve the interoperability of the existing EAP protocol" (quoting our charter). I think we should adopt better alternatives and designs whenever we can -- and I think we have often done that when working with the details -- but not when it would affect backwards compatibility. EAPv2 is also off-limits for our working group, though of course individuals in the group can pursue, say, next-gen network access protocol designs in their research work. So, lets keep resolve the other stuff the best we can, but not outlaw existing EAP methods. And as I have said before, it would be good to have text to point out specific vulnerabilities and issues in existing EAP methods and the "L" part of the state machine. I think RFC 3748 is our primary document regarding the security properties of EAP (or lack thereof), so I don't think we should hold the publication of the state machine to develop such text. But if you already have such text or you can clearly see what the implications are, please send text so that Nick can put it in. --Jari (the co-chair hat on) _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 17 11:08:46 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA20800 for ; Sat, 17 Jul 2004 11:08:46 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 03588212F3; Sat, 17 Jul 2004 10:53:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3E4922079A; Sat, 17 Jul 2004 10:53:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E0EC420743 for ; Sat, 17 Jul 2004 10:52:55 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 5A9CB1FC78 for ; Sat, 17 Jul 2004 10:52:53 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6HF4hR31011; Sat, 17 Jul 2004 08:04:43 -0700 From: Bernard Aboba To: Jari Arkko Cc: eap@frascone.com In-Reply-To: <40F9361F.1040507@piuha.net> Message-ID: References: <40F8EDD6.4090006@piuha.net> <40F9361F.1040507@piuha.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Re: keying-03: issue 215 (sa terminology) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 17 Jul 2004 08:04:43 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > At the moment at least I don't > see MSK lifetime being maintained by current systems. But I may > have missed something. It would appear to me that various AMSK applications (e.g. Bill Arbaugh's pre-emptive handoff work) seem to maintain such state. The question is: for how long? How do the parties negotiate the lifetime? For example, when AMSKs are derived from the EMSK, how long does the EMSK remain in the AAA server cache for this purpose? For example, if my host created an MSK & EMSK, then went to sleep and woke up the next day, are those key cache entries still valid for AMSK key derivation? Is there some implicit assumption that there is only one currently valid MSK/EMSK root from which AMSKs are derived, and once a new MSK/EMSK set is derived on the peer and server, then the previous hierarchy is invalidated? The problem is that EAP and EAP methods don't negotiate a lifetime for the EMSK/MSK, and neither does the EAP lower layer. This leaves these lifetimes (as well as lifetimes of derived quantities such as the AAA-Key and AMSKs) undefined after the completion of the EAP negotatiation. There have been proposals for including a Key-Lifetime within the AAA-Token, but that only helps in synchronization between the AAA server and authenticator. Where the AMSK (or even AAA-Key) is potentially cached, the peer needs to be able to guess whether that key remains valid at some future time. Things get even more messy if authorizations are provided along with the AAA-Token in order to restrict key scope or usage. In that case, the peer may be unaware not only of the key lifetime, but also its usage restrictions. I've been struggling with these issues in the Key Lifetime section, and seem to have come to the conclusion that the problem may not be solvable unless the Secure Association Protocol follows closely after the EAP conversation so as to allow the key lifetimes to be negotiated there. However, in architectures such as 802.11i there may be a (long?) hiatus between the two protocols, during which the key lifetimes are undefined on the peer. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 17 12:33:59 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA24089 for ; Sat, 17 Jul 2004 12:33:58 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E3C2D2045A; Sat, 17 Jul 2004 12:18:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 57A86209E2; Sat, 17 Jul 2004 12:18:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 020A420933 for ; Sat, 17 Jul 2004 12:17:36 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id DF56B2045A for ; Sat, 17 Jul 2004 12:17:33 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id 771518982E; Sat, 17 Jul 2004 19:31:41 +0300 (EEST) Message-ID: <40F95336.4000407@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Wolfgang.Groeting@siemens.com Cc: "eap@frascone.com" Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] comments on draft-groeting-eap-netselection-results-00.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 17 Jul 2004 19:26:30 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Wolfgang & co, Thank you for submitting this draft! I think its a very useful approach that you have run experiments using a real implementation and provided us with some feedback based on that. This is very much needed. Here are a few comments from my first reading: Technical: > EAP is a generic container protocol that can - in theory - carry any > information desired by the network (as long as both sides of the > information exchange understand the information that they are > receiving). It is an obvious choice for Layer 2 information exchange > about network capabilities since it is highly likely that EAP will be > implemented in both, the end host and the network. However, when EAP I disagree about EAP being an obvious choice for this purpose. I think we have consensus that we can use it in a very limited fashion (a la Farid's draft), but EAP's lack of multicast support, request-response model, lack of fragmentation support, and small MTU size makes it a cumbersome protocol for a general purpose information exchange. But you already note much of this later in the text. Maybe s/an obvious choice/one possible alternative/. > is used in this fashion (i.e., beyond its original intention) it is > important to note that there are possible impacts on security, > scalability and the EAP state machine. Indeed. > Importance: Mandatory for authentication purpose > When discovered: Pre-authentication > How dynamic: Inter-attach This type of classification seems quite useful. I'll adopt some of the concept to draft-ietf-eap-netsel-problem in fact, if you don't mind... > The AN will receive information from the home network about what the > user is authorized to access and for how long. If this information > can be transferred to the MT then it can be used to make informed > decisions e.g. about interface selection - there is no point > choosing to use an interface if it is about to become idle because > the time for which it is authorized is nearly finished. It would > also be useful for feedback to the user. As this information might > belong to a particular user, it needs further investigation on how to > secure such kind of information. A plain authorization information > advertisement seems rather difficult to realize. > > Importance: Optional > When discovered: Pre-authentication > How dynamic: Duration of Session > > The functionality required to obtain this information is quite > complex and does not yet exist so this information is considered to > be optional at the moment. Indeed. In fact, without a more specific example on what such authorization would tell us, I'm not sure we even need to consider this part at all. All that I can think of is things like "Am I going to get a public IP address?" or "Do I get access from here or is it necessary to do a manual web-page login first?". Such questions will be answered later by a trial-and-error process, but it would be much better if the mobile node could choose the optimal access network from the start. > 2.2.5 Privacy Policy This is interesting, though maybe not so critical. The location of the user will be roughly known by his IP address in any case. And I suspect that there are legal interception & goverment regulations that dictate that the networks have to hand over any information in any case, if requested. So it isn't clear to me what value an advertisement of a privacy policy has. >2.2.6 Middlebox Devices This would be very useful! > In [I-D.adrangi-eap-network-discovery] the following syntax is > proposed: network-info = attribute "=" value. for just transmitting > the names of the mediating networks, this syntax is useful. When > offering e.g. six attributes about three mediating networks there > occurs a problem with the space available in the EAP packet. A > solution to that problem is to send the network information in a > defined order, seperated with a defined delimiter. Figure 2 is a > possible way to transmit information about: the name of the mediating > network, the cost of the mediating network, roaming agreements, > quality of service , middlebox information and authorisation > information (in this exemplary for three mediating networks): > > _______________________ > | | | | > | MN1 | MN2 | MN3 | MN: Mediating Network > | | | | > |-------|-------|-------| > | | | | > | C1 | C2 | C3 | C: Cost > | | | | > |-------|-------|-------| > | | | | > | RA1 | RA2 | RA3 | RA: Roaming Agreements > | | | | > |-------|-------|-------| > | | | | > | QS1 | QS2 | QS3 | QS: Quality of Service > | | | | > |-------|-------|-------| > | | | | > | MI1 | MI2 | MI3 | MI: Middlebox Information > | | | | > |-------|-------|-------| > | | | | > | AI1 | AI2 | AI3 | AI: Authorisation Information > | | | | > |-------|-------|-------| > | | | | > | PP1 | PP2 | PP3 | PP: Privacy Policy > | | | | > ----------------------- > > Figure 2: Matrix for Network Information > > Converted into a string this data looks like (used "," as delimeter > between attributes and ";" as delimeter between values): > network-information=MN1;MN2;MN3,Cost1;Cost2;Cost3, > RA1;RA2;RA3,QS1;QS2;QS3,MI1;MI2;MI3,AI1;AI2;AI3,PP1;PP2;PP3 Please don't use the EAP Identity Request packets for a transmission of all this data. Farid's draft very clearly states that you can transfer intermediate network names (roaming information), but nothing else. As you point out above, the space runs out very fast. > One thing missing in this behaviour model is the reaction on an > Identity-Response which arrives the second time - without having > changed anything in username attribute. For this reason a counter > has to be inserted into FreeRADIUS-code which makes it possible to > check for packets who are arriving more than one time. As proposed > in [I-D.adrangi-eap-network-discovery] the AAA-Server has to handle > these packets based on the local routing policy. In fact the > AAA-Server SHOULD discard these packets and send an EAP Failure > packet which stops the authentication process. This seems like a useful thing to add to Farid's draft. If there simply is no routing entry for the requested network, no decoration, and you have already sent one EAP identity request with the mediating network info -- all you can do is fail. > At supplicant side there is also one point where it makes most sense > to implement a query when to send a decorated-nai. This is on every > incoming Identity-Request. For example all incoming > Identity-Requests could be checked for their size, and then be > interpreted or not. I'm not sure I understand the text above. Can you clarify? In any case, as rfc2486bis notes, decorated NAIs shall not be used unless there is explicit knowledge (config or via discovery) that the bang syntax can be used. > If it decides not to continue with authenticating process, the > supplicant SHOULD send an EAP logoff packet. Else an > Identity-Response has to be sent, which includes a decorated-nai as > username. Part of this decorated-nai is the chosen mediating > network. Note that the decorations must always be optional, even if there was an advertisement for mediating networks. Otherwise current clients will fail to connect. So jari@arkko.com should work without decorations, as long as there is a routing entry in the AAA chain for arkko.com. > 1 byte 2 bytes 1 byte > |------- |----------------|------- | > | Type | Length | NoM | > |--------|----------------|--------| > | Data | > |----------------------------------| > > Figure 4: Design of a Netinfo-Packet Can you clarify which protocol layer you intend to carry this in? > In fact, most administrators of WLANs do not change > the default SSID (see for example [Pri04] for a study about WLAN > usage in London where approximately 40% of the access points are > running their default SSID.) Such an approach makes the phone book > (see [RFC3017]) approach (as an out-of-band mechanism to associate a > particular service to an identifier) difficult to deploy. This is an interesting observation! I'll include this too in draft-ietf-eap-netsel-problem-01... > As a summary, to provide a short-term solution the authors suggest to > provide a mechanism to exchange information about the offered and the > desired service between the end host and the access network. > Subsequently, this information has to be repeated both in the EAP > method and the AAA infrastructure to give the user and the home > network the ability to detect fraud. This proposal has not been > verified by the current implementation and hence needs further > assessment. I agree with this general approach. (But I'd like to keep the information down to the very basic data, i.e., mediating networks, and not include e.g. QoS.) Editorial: - s/that the algorithmus comes to a decision if to proceed authenticating/that the algorithm comes to decision on whether to proceed with the authentication/ - s/exemplary/example/ --Jari _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 17 12:58:15 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA25085 for ; Sat, 17 Jul 2004 12:58:15 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5364C2091C; Sat, 17 Jul 2004 12:44:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D63B9209AB; Sat, 17 Jul 2004 12:44:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 97914209AB for ; Sat, 17 Jul 2004 12:43:19 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id AFE5D2091C for ; Sat, 17 Jul 2004 12:43:17 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id 982B98982E; Sat, 17 Jul 2004 19:57:26 +0300 (EEST) Message-ID: <40F9593F.2080603@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Bernard Aboba Cc: eap@frascone.com References: <40F8EDD6.4090006@piuha.net> <40F9361F.1040507@piuha.net> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Re: keying-03: issue 215 (sa terminology) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 17 Jul 2004 19:52:15 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Bernard Aboba wrote: > It would appear to me that various AMSK applications (e.g. Bill Arbaugh's > pre-emptive handoff work) seem to maintain such state. Yes. > The question is: for how long? How do the parties negotiate the lifetime? Right. (And where do we document such protocols and SAs? Some amount of specification seems appropriate in the keying draft, but the actual protocols and detailed SA contents could be application specific.) > For example, when AMSKs are derived from the EMSK, how long does the EMSK > remain in the AAA server cache for this purpose? For example, if my host > created an MSK & EMSK, then went to sleep and woke up the next day, are > those key cache entries still valid for AMSK key derivation? Is there some > implicit assumption that there is only one currently valid MSK/EMSK root > from which AMSKs are derived, and once a new MSK/EMSK set is derived on > the peer and server, then the previous hierarchy is invalidated? > > The problem is that EAP and EAP methods don't negotiate a lifetime for the > EMSK/MSK, and neither does the EAP lower layer. This leaves these > lifetimes (as well as lifetimes of derived quantities such as the AAA-Key > and AMSKs) undefined after the completion of the EAP negotatiation. This is accurate. (And it is a consequence of EAP not being designed initially for this purpose.) One thing we can do easily is to ensure that usage of quantities such as the AMSK which have not yet (outside experiments?) been used occurs in an appropriate way. For instance, while we have no easy way to agree about the MSK or EMSK lifetimes, the derivation of AMSK certainly occurs within some application protocol context. We can require that such derivation must also agree about the key lifetimes and other parameters that we see as important. We could attempt to design secure association protocols that are better than the current ones in this respect, but I'm not sure how helpful that is, if the current ones are still out there. Or do you think we can prevent the use of EMSK-derived quantities in the 802.11 context? Also, it may be hard to convince the link layer folks to change their protocols in order to support something which could be related to something else than that link layer -- we have not restricted the use of the AMSK on a particular link layer only. Another thing that we could do easily is to require that AAA/EAP servers that support AMSK derivation (an optional feature) must keep the EMSK and AMSK state as long as the session is alive. One problem with this is, however, that it forces the authentication server to be stateful. While many servers are stateful in order to control, e.g., session limits or prepaid, this is currently not a requirement. Are we willing to put that requirement in when EMSK/AMSK usage is needed? > There have been proposals for including a Key-Lifetime within the AAA-Token, > but that only helps in synchronization between the AAA server and authenticator. > Where the AMSK (or even AAA-Key) is potentially cached, the peer needs to be able to > guess whether that key remains valid at some future time. Things get even > more messy if authorizations are provided along with the AAA-Token in > order to restrict key scope or usage. In that case, the peer may be > unaware not only of the key lifetime, but also its usage restrictions. > > I've been struggling with these issues in the Key Lifetime section, and > seem to have come to the conclusion that the problem may not be solvable > unless the Secure Association Protocol follows closely after the EAP > conversation so as to allow the key lifetimes to be negotiated there. > However, in architectures such as 802.11i there may be a (long?) hiatus > between the two protocols, during which the key lifetimes are undefined on > the peer. --Jari _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 17 13:22:35 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id NAA26011 for ; Sat, 17 Jul 2004 13:22:34 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E593F21513; Sat, 17 Jul 2004 13:06:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6157B2150E; Sat, 17 Jul 2004 13:06:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3CBBB20C3A for ; Sat, 17 Jul 2004 13:05:59 -0400 (EDT) Received: from p-mail2.rd.francetelecom.com (p-mail2.rd.francetelecom.com [195.101.245.16]) by mail.frascone.com (Postfix) with ESMTP id E382120772 for ; Sat, 17 Jul 2004 13:05:55 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp1.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Sat, 17 Jul 2004 19:20:02 +0200 Received: from rd.francetelecom.fr ([10.193.106.20]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Sat, 17 Jul 2004 19:20:01 +0200 Message-ID: <40F95FD8.50302@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: jari.arkko@piuha.net, "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 References: <40F82A12.7010707@piuha.net> In-Reply-To: <40F82A12.7010707@piuha.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 17 Jul 2004 17:20:01.0204 (UTC) FILETIME=[4AC09740:01C46C22] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 17 Jul 2004 19:20:24 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Nick, Please see in-line some answer to your email and Jari's... and some proposed text for the "DoS issues". Hope this helps, Florent Jari Arkko wrote: > > Florent, Nick, > > First: thanks for going through the remaining issues! > > ... > > Fortunately or unfortunately, EAP is already deployed. We have > created this working group in the IETF to "fully document and > improve the interoperability of the existing EAP protocol" (quoting > our charter). I think we should adopt better alternatives > and designs whenever we can -- and I think we have often done > that when working with the details -- but not when it would affect > backwards compatibility. EAPv2 is also off-limits for our > working group, though of course individuals in the group > can pursue, say, next-gen network access protocol designs > in their research work. > > So, lets keep resolve the other stuff the best we can, > but not outlaw existing EAP methods. And as I have > said before, it would be good to have text to point > out specific vulnerabilities and issues in existing > EAP methods and the "L" part of the state machine. > > I think RFC 3748 is our primary document regarding > the security properties of EAP (or lack thereof), > so I don't think we should hold the publication of the > state machine to develop such text. But if you already > have such text or you can clearly see what the implications > are, please send text so that Nick can put it in. What about the following text (alluding to the potential well-known vulnerabilities): Add to section 8 "Implementation considerations" of the EAP state machine draft (or to section 9 "security considerations"): "As noted in RFC 3748 there are some security concerns that arise because of the following EAP packets: 1. EAP-Request/Response Identity 2. EAP-Response/NAK 3. EAP-Success/Failure Since these packets are not cryptographically protected by themselves, an attacker can modify them without immediate detection by the peer or the server. Following Figure 3 specification, an attacker may cause denial of service by: * Sending an EAP-Failure to the peer before the peer has started an EAP authentication method. Indeed, as long as the peer has not modified the methodState variable which is initialized to NONE, the peer MUST accept an EAP-Failure. * Forcing the peer to engage in endless EAP-Request/Response Identity exchanges before it has started an EAP authentication method. Indeed, as long as the peer has not modified the selectedMethod variable which is initialized to NONE, the peer MUST accept an EAP-Request/Identity and respond to it with an EAP-Response/Identity Following Figure 4 specification, an attacker may cause denial of service by: * Sending a NAK to the server after the server first proposes an EAP authentication method to the peer. Indeed, as the methodState takes the value PROPOSED, the server is obliged to process a NAK that is included in response to its first packet of an EAP authentication method. There MAY be some cases when it is desired to prevent such attacks. This can be done by modifying initial values of some variables of the EAP state machines. However, such modifications are NOT RECOMMENDED. There is indeed a tradeofff between mitigating these denial of service attacks and being able to deal with EAP peers and servers in general. For instance, should the sending of a NAK to the server after it has just proposed an EAP authentication method to the peer be ignored, then a legitimate peer that is not able or willing to process the proposed EAP authentication method would fail without an opportunity to negotiate another EAP method." What do you reckon? > > --Jari (the co-chair hat on) Nice hat ;-) Nick Petroni wrote: >Florent, > >I certainly appreciate your opinion, but I hope you know that it is not >me with whom you are disagreeing. > I know that, don't worry. > I am simply explaining what I understand >the constraints of this working group to be. > It seemed like I just felt being reminded them by our beloved chairs ;-) > I share your admonishment for >using bad methods, but it has been my understanding from the beginning >that these are our constraints. Sorry if this ruins your day :(. If I am >wrong, someone else can certainly correct me freely. > I think (as Jari) that you are right :-)) > It has certainly >happened on more than one occasion :). >Take care, >nick > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From tantalumtrenchermen@patmedia.net Sat Jul 17 20:57:37 2004 Received: from ietf-mx (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id UAA18293 for ; Sat, 17 Jul 2004 20:57:37 -0400 (EDT) Received: from ietf-mx.ietf.org ([132.151.6.1] helo=ietf-mx) by ietf-mx with esmtp (Exim 4.32) id 1Blzzl-00011A-Hp for eap-archive@ietf.org; Sat, 17 Jul 2004 20:57:37 -0400 Received: from exim by ietf-mx with spam-scanned (Exim 4.12) id 1BlzyF-0000T8-00 for eap-archive@ietf.org; Sat, 17 Jul 2004 20:56:03 -0400 Received: from [65.246.255.50] (helo=mx2.foretec.com) by ietf-mx with esmtp (Exim 4.12) id 1BlzxI-00008V-00; Sat, 17 Jul 2004 20:55:04 -0400 Received: from [61.102.195.57] (helo=65.246.255.50) by mx2.foretec.com with smtp (Exim 4.24) id 1BlzxH-0004Wl-B2; Sat, 17 Jul 2004 20:55:04 -0400 X-Message-Info: cvm641MV425L6NrUngiSB83bveTC46rhoYRNyfP3DM29 Received: from mail pickup service by 61.102.195.57 with Microsoft SMTPSVC; Sun, 18 Jul 2004 01:49:16 +0100 Content-Class: urn:content-classes:message Language: English X-MIME-Autoconverted: Yes Approved: Yes (crankshaft@127.0.0.1) Reply-To: "Tanya Locke" From: "Tanya Locke" To: l2vpn-web-archive@ietf.org Cc: iab-wireless-workshop@ietf.org, seamoby@ietf.org, bpana@ietf.org, owner-ietf-outbound@ietf.org, entmib-request@ietf.org, xmldsig-archive@ietf.org, rmt-request@ietf.org, simple@ietf.org, eap-archive@ietf.org Subject: Approved: We owe you $976703 Date: Sat, 17 Jul 2004 17:50:16 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--36444594523022505" Message-Id: X-Spam-Flag: YES X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on ietf-mx.ietf.org X-Spam-Status: Yes, hits=5.0 required=5.0 tests=AWL,FORGED_RCVD_NET_HELO, HTML_20_30,HTML_MESSAGE,MIME_HTML_ONLY,MIME_HTML_ONLY_MULTI, RCVD_NUMERIC_HELO autolearn=no version=2.60 X-Spam-Report: * 0.3 RCVD_NUMERIC_HELO Received: contains a numeric HELO * 0.0 HTML_MESSAGE BODY: HTML included in message * 0.5 HTML_20_30 BODY: Message is 20% to 30% HTML * 0.1 MIME_HTML_ONLY BODY: Message only has text/html MIME parts * 3.0 FORGED_RCVD_NET_HELO Host HELO'd using the wrong IP network * 1.1 MIME_HTML_ONLY_MULTI Multipart message only has text/html MIME parts * 0.0 AWL AWL: Auto-whitelist adjustment ----36444594523022505 Content-Type: text/html; charset="iso-7136-5" Content-Transfer-Encoding: 7Bit Hello,

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not interested ----36444594523022505-- From eap-admin@frascone.com Sat Jul 17 21:59:23 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id VAA22524 for ; Sat, 17 Jul 2004 21:59:19 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3580320F8F; Sat, 17 Jul 2004 21:45:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 922B520F78; Sat, 17 Jul 2004 21:45:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B1AB820F78 for ; Sat, 17 Jul 2004 21:44:12 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 7303A20F77 for ; Sat, 17 Jul 2004 21:44:09 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6I1txc02951 for ; Sat, 17 Jul 2004 18:55:59 -0700 From: Bernard Aboba To: eap@frascone.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Proposed Resolution of Issue 215: Comments on Section 3 Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 17 Jul 2004 18:55:59 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) The body of Issue 215 and the associated discussion can be found at: http://www.drizzle.com/~aboba/EAP/eapissues.html#Issue%20215 The proposed resolution of is as follows. Add the following text for Section 2.4, and replace Section 3 with the following: "2.4. Key Naming MSK Name This key is created between the EAP peer and EAP server, and is uniquely named by the concatenation of the string "MSK", EAP Method Type, EAP peer name, EAP server name, EAP peer nonce, and the EAP server nonce. Here the EAP peer name and EAP server name are the identifiers securely exchanged within the EAP method. Since multiple MSKs may exist between an EAP peer and EAP server, the EAP peer nonce and EAP server nonce allow MSKs to be differentiated; at least one of these nonces is necessary. The inclusion of the Method Type in the name ensures that each EAP method has a distinct name space. Note that the components of the MSK Name are only known by the EAP method. As a result, the MSK Name is exported from the method, and no detailed format of the MSK Name can be specified without a reference to a particular method. EMSK Name The EMSK is named similarly to the above. Its name is the concatenation of the string "EMSK", the EAP Method Type, EAP peer name, EAP server name, EAP peer nonce, and the EAP server nonce. Note that neither the MSK nor EMSK names include the authenticator identity or the peer or authenticator port over which the EAP conversation took place. This is because the MSK and EMSK are not bound to an authenticator, or to specific ports on the peer or authenticator. AMSK Name AMSKs, if any, may be named by the concatenation of the string "AMSK", key label, application data (see Appendix F), and EMSK Name. AAA-Key Name The AAA-Key is named by the concatenation of the string "AAA-Key", the authenticator name (since the AAA-Key is bound to a particular authenticator), and the name of the key from which the AAA-Key is derived (MSK or AMSK Name). For the purpose of identifying the authenticator, the contents of the NAS-Identifier attribute is recommended. In order to ensure that all parties can agree on the authenticator name this requires the authenticator to advertise its name (typically using a lower layer mechanism, such as the 802.11 Beacon/Probe Response). Note that the AAA-Key name does not include the peer or authenticator port over which the EAP conversation took place. This is because the AAA-Key is not bound to a specific peer or authenticator port. PMK Name The PMK has no name of its own, and is only identified by the AAA- Key from which it is derived. TEKs The TEKs may or may not be named. Their naming is specified in the EAP method. TSKs The TSKs are typically named. Their naming is specified in the Secure Association (phase 2) protocol, so that the correct set of transient session keys can be identified for processing a given packet. Explicit creation and deletion operations are also typically supported so that establishment and re-establishment of transient session keys can be synchronized between the parties. In order to avoid confusion in the case where an EAP peer has more than one AAA-Key (phase 1b) applicable to establishment of a phase 2 security association, the secure Association protocol needs to name the AAA-Key so that the appropriate phase 1b keying material can be identified for use in the Secure Association Protocol exchange. 3. Security Associations During EAP authentication and subsequent exchanges, four types of security associations (SAs) are created: [1] EAP method SA. This SA is between the peer and EAP server. It stores state that can be used for "fast resume" or other functionality in some EAP methods. Not all EAP methods create such an SA. [2] EAP-Key SA. This is an SA between the peer and EAP server, which is used to store the keying material exported by the EAP method. Current EAP server implementations do not retain this SA after the EAP conversation completes, but proposals such as [IEEE-03-084] and [I-D.irtf-aaaarch-handoff] use this SA for purposes such as pre- emptive key distribution. [3] AAA SA(s). These SAs are between the authenticator and the backend authentication server. They permit the parties to mutually authenticate each other and protect the communications between them. [4] Service SA(s). These SAs are between the peer and authenticator, and they are created as a result of phases 1-2 of the conversation (see Section 1.3). 3.1. EAP Method SA (peer - EAP server) An EAP method may store some state on the peer and EAP server even after phase 1a has completed. Typically, this is used for "fast resume": the peer and EAP server can confirm that they are still talking to the same party, perhaps using fewer round-trips or less computational power. In this case, the EAP method SA is essentially a cache for performance optimization, and either party may remove the SA from its cache at any point. An EAP method may also keep state in order to support pseudonym-based identity protection. This is typically a cache as well (the information can be recreated if the original EAP method SA is lost), but may be stored for longer periods of time. The EAP method SA is not restricted to a particular service or authenticator and is most useful when the peer accesses many different authenticators. An EAP method is responsible for specifying how the parties select if an existing EAP method SA should be used, and if so, which one. Where multiple backend authentication servers are used, EAP method SAs are not typically synchronized between them. EAP method implementations should consider the appropriate lifetime for the EAP method SA. "Fast resume" assumes that the information required (primarily the keys in the EAP method SA) hasn't been compromised. In case the original authentication was carried out using, for instance, a smart card, it may be easier to compromise the EAP method SA (stored on the PC, for instance), so typically the EAP method SAs have a limited lifetime. Contents: o Implicitly, the EAP method this SA refers to o One or more internal (non-exported) keys o EAP method SA name o SA lifetime 3.1.1. Example: EAP-TLS In EAP-TLS [RFC2716], after the EAP authentication the client (peer) and server can store the following information: o Implicitly, the EAP method this SA refers to (EAP-TLS) o Session identifier (a value selected by the server) o Certificate of the other party (server stores the client's certificate and vice versa) o Ciphersuite and compression method o TLS Master secret (known as the EAP-TLS Master Key or MK) o SA lifetime (ensuring that the SA is not stored forever) o If the client has multiple different credentials (certificates and corresponding private keys), a pointer to those credentials When the server initiates EAP-TLS, the client can look up the EAP-TLS SA based on the credentials it was going to use (certificate and private key), and the expected credentials (certificate or name) of the server. If an EAP-TLS SA exists, and it is not too old, the client informs the server about the existence of this SA by including its Session-Id in the TLS ClientHello message. The server then looks up the correct SA based on the Session-Id (or detects that it doesn't yet have one). 3.1.2. Example: EAP-AKA In EAP-AKA [I-D.arkko-pppext-eap-aka], after EAP authentication the client and server can store the following information: o Implicitly, the EAP method this SA refers to (EAP-AKA) o A re-authentication pseudonym o The client's permanent identity (IMSI) o Replay protection counter o Authentication key (K_aut) o Encryption key (K_encr) o Original Master Key (MK) o SA lifetime (ensuring that the SA is not stored forever) When the server initiates EAP-AKA, the client can look up the EAP-AKA SA based on the credentials it was going to use (permanent identity). If an EAP-AKA SA exists, and it is not too old, the client informs the server about the existence of this SA by sending its re- authentication pseudonym as its identity in EAP Identity Response message, instead of its permanent identity. The server then looks up the correct SA based on this identity. 3.2. EAP-Key SA This is an SA between the peer and EAP server, which is used to store the keying material exported by the EAP method. Current EAP server implementations do not retain this SA after the EAP conversation completes, but future implementations could use this SA for pre- emptive key distribution. Contents: o MSK and EMSK names o MSK and EMSK o SA lifetime 3.3. AAA SA(s) (authenticator - backend authentication server) In order for the authenticator and backend authentication server to authenticate each other, they need to store some information. In case the authenticator and backend authentication server are colocated, and they communicate using local procedure calls or shared memory, this SA need not necessarily contain any information. 3.3.1. Example: RADIUS In RADIUS, where shared secret authentication is used, the client and server store each other's IP address and the shared secret, which is used to calculate the Response Authenticator [RFC2865] and Message- Authenticator [RFC3579] values, and to encrypt some attributes (such as the AAA-Key [RFC2548]). Where IPsec is used to protect RADIUS [RFC3579] and IKE is used for key management, the parties store information necessary to authenticate and authorize the other party (e.g. certificates, trust anchors and names). The IKE exchange results in IKE Phase 1 and Phase 2 SAs containing information used to protect the conversation (session keys, selected ciphersuite, etc.) 3.3.2. Example: Diameter with TLS When using Diameter protected by TLS, the parties store information necessary to authenticate and authorize the other party (e.g. certificates, trust anchors and names). The TLS handshake results in a short-term TLS SA that contains information used to protect the actual communications (session keys, selected TLS ciphersuite, etc.). 3.4. Service SA(s) (peer - authenticator) The service SA stores information about the service being provided. This includes: o Service parameters (or at least those parameters that are still needed) o On the authenticator, service authorization information received from the backend authentication server (or necessary parts of it) o On the peer, usually locally configured service authorization information. o Transient Session Keys used to protect the communication o The AAA-Key, if it can be needed again (to refresh and/or resynchronize other keys or for another reason) o AAA-Key lifetime The information in the service SA can be grouped into several different SAs. This would make sense if, for instance, the service provided is naturally divided into several different sub- conversations with different parameters. Service SAs may include both unicast and multicast SAs. An EAP peer may be able to negotiate multiple service SAs with a given authenticator, or may be able to maintain one or more secondary service SAs with multiple authenticators, depending on the properties of the media. In order for service SAs and associated TSKs to be established, it is not necessary for an EAP exchange to be rerun each time. Instead, the Secure Association protocol can be used to mutually prove possession of the AAA-Key and create associated service SAs and TSKs, enabling the EAP exchange to be bypassed. It is possible for more than one unicast or multicast service SA to be derived from a single AAA-Key. However, a service SA always descended from only one AAA-Key. Service SAs descended from the same AAA-Key may utilize the same security parameters (e.g. mode, ciphersuite, etc.) or they may utilize different parameters. Except where explicitly specified by the Secure Association protocol, it should not be assumed that the installation of new service SAs implies deletion of old service SAs. During a re-key of a service SA (unicast or multicast), it is possible for two service SAs to exist during the period between when the new service SA and corresponding TSKs are calculated and when they are installed. Similarly, deletion or creation of a unicast or multicast service SA does not necessarily imply deletion or creation of related unicast or multicast service SAs, unless specified by the Secure Association protocol. For example, a unicast service SA may be rekeyed without implying a rekey of the multicast service SA. The deletion of the AAA-Key does not necessarily imply the deletion of the service SAs and associated TSKs derived from that AAA-Key. Failure to mutually prove possession of the AAA-Key during the Secure Association protocol exchange need not be grounds for deletion of the AAA-Key by both parties; the action to be taken is defined by the Secure Association protocol. One function of the Secure Association protocol is to bind the the TSKs to endpoint identifiers. For example, within [IEEE802.11i], the 4-way handshake binds the TSKs to the MAC addresses of the endpoints; in IKE [RFC2409], the TSKs are bound to the IP addresses of the endpoints and the negotiated SPI. How exactly the relevant service SA is chosen at each point depends on the protocol; see below for examples. 3.4.1. Example: 802.11i [IEEE802.11i] Section 8.4.1.1 defines the security associations used within IEEE 802.11. A summary follows; the standard should be consulted for details. o Pairwise Master Key Security Association (PMKSA) The PMKSA is a bi-directional SA, used by both parties for sending and receiving. It is created on the peer when EAP authentication completes successfully or a pre-shared key is configured. The PMKSA is created on the authenticator when the PMK is received or created on the authenticator or a pre-shared key is configured. The PMKSA is used to create the PTKSA. PMKSAs are cached for their lifetimes. The PMKSA consists of the following elements: - PMKID (security association identifier) - Authenticator MAC address - PMK - Lifetime - Authenticated Key Management Protocol (AKMP) - Authorization parameters specified by the AAA server or by local configuration. This can include parameters such as the peer's authorized SSID. On the peer, this information can be locally configured. - Key replay counters (for EAPOL-Key messages) - Reference to PTKSA (if any), needed to: o delete it (e.g. AAA server-initiated disconnect) o replace it when a new four-way handshake is done - Reference to accounting context, the details of which depend on the accounting protocol used, the implementation and administrative details. In RADIUS, this could include (e.g. packet and octet counters, and Acct-Multi-Session-Id). o Pairwise Transient Key Security Association (PTKSA) The PTKSA is a bi-directional SA created as the result of a successful four-way handshake. There may only be one PTKSA between a pair of peer and authenticator MAC addresses. PTKSAs are cached for the lifetime of the PMKSA. Since the PTKSA is tied to the PMKSA, it only has the additional information from the 4-way handshake. The PTKSA consists of the following: - Key (PTK) - Selected ciphersuite - MAC addresses of the parties - Replay counters, and ciphersuite specific state - Reference to PMKSA: This is needed when: o A new four-way handshake is needed (lifetime, TKIP countermeasures), and we need to know which PMKSA to use o Group Transient Key Security Association (GTKSA) The GTKSA is a uni-directional SA created based on the four-way handshake or the group key handshake. A GTKSA consists of the following: - Direction vector (whether the GTK is used for transmit or receive) - Group cipher suite selector - Key (GTK) - Authenticator MAC address - Via reference to PMKSA, or copied here: o Authorization parameters o Reference to accounting context 3.4.2. Example: IKEv2/IPsec Note that this example is intended to be informative, and it does not necessarily include all information stored. o IKEv2 SA - Protocol version - Identities of the parties - IKEv2 SPIs - Selected ciphersuite - Replay protection counters (Message ID) - Keys for protecting IKEv2 messages (SK_ai/SK_ar/SK_ei/SK_er) - Key for deriving keys for IPsec SAs (SK_d) - Lifetime information - On the authenticator, service authorization information received from the backend authentication server. When processing an incoming message, the correct SA is looked up based on the SPIs. o IPsec SAs/SPD - Traffic selectors - Replay protection counters - Selected ciphersuite - IPsec SPI - Keys - Lifetime information - Protocol mode (tunnel or transport) The correct SA is looked up based on SPI (for inbound packets), or SPD traffic selectors (for outbound traffic). A separate IPsec SA exists for each direction. 3.4.3. Sharing service SAs A single service may be provided by multiple logical or physical service elements. Each service is responsible for specifying how changing service elements is handled. Some approaches include: Transparent sharing If the service parameters visible to the other party (either peer or authenticator) do not change, the service can be moved without requiring cooperation from the other party. Whether such a move should be supported or used depends on implementation and administrative considerations. For instance, an administrator may decide to configure a group of IKEv2/IPsec gateways in a cluster for high-availability purposes, if the implementation used supports this. The peer does not necessarily have any way of knowing when the change occurs. No sharing If the service parameters require changing, some changes may require terminating the old service, and starting a new conversation from phase 0. This approach is used by all services for at least some parameters, and it doesn't require any protocol for transferring the service SA between the service elements. The service may support keeping the old service element active while the new conversation takes phase, to decrease the time the service is not available. Some sharing The service may allow changing some parameters by simply agreeing about the new values. This may involve a similar exchange as in phase 2, or perhaps a shorter conversation. This option usually requires some protocol for transferring the service SA between the elements. An administrator may decide not to enable this feature at all, and typically the sharing is restricted to some particular service elements (defined either by a service parameter, or simple administrative decision). If the old and new service element do not support such "context transfer", this approach falls back to the previous option (no transfer). Services supporting this feature should also consider what changes require new authorization from the backend authentication server (see Section 4.2). Note that these considerations are not limited to service parameters related to the authenticator--they apply to peer's parameters as well. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 17 22:44:19 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id WAA24439 for ; Sat, 17 Jul 2004 22:44:18 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A335920F95; Sat, 17 Jul 2004 22:30:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4EC9B20FA0; Sat, 17 Jul 2004 22:30:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id AFD1220FA0 for ; Sat, 17 Jul 2004 22:29:54 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 906F020F95 for ; Sat, 17 Jul 2004 22:29:52 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6I2fhZ05535 for ; Sat, 17 Jul 2004 19:41:43 -0700 From: Bernard Aboba To: eap@frascone.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Re: comments on draft-groeting-eap-netselection-results-00.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 17 Jul 2004 19:41:43 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Jari Arkko noted: "I disagree about EAP being an obvious choice for this purpose. I think we have consensus that we can use it in a very limited fashion..." Yes, the discussion so far in 802.11 WIEN does not appear to suggest that EAP is the obvious choice either, particularly if the wider problem statement is taken into account (service discovery and selection). > is used in this fashion (i.e., beyond its original intention) it is > important to note that there are possible impacts on security, > scalability and the EAP state machine. Actually I think there may be impacts even when used as intended. > Please don't use the EAP Identity Request packets for > a transmission of all this data. Farid's draft very clearly > states that you can transfer intermediate network names > (roaming information), but nothing else. As you point out > above, the space runs out very fast. Given the limitations of the EAP MTU size, and the inherent inefficiency of the described syntax, it's quite questionable whether these kind of extensions make any sense. And if they are really needed (which I can believe), then this argues for going another route from the start, such as delivering the information at the lower layer. Given that a straw poll at the IEEE 802.11 WIEN group indicated strong support for standardization within 802.11, I suspect that we'll have discussions on lower layer alternatives taking place fairly soon. Given this, the argument for publishing the EAP Network Discovery document rests on its general utility (providing hints for selection of the right NAI for the EAP-Response), rather than its suitability as a substrate for further extensions. > check for packets who are arriving more than one time. As proposed > in [I-D.adrangi-eap-network-discovery] the AAA-Server has to handle > these packets based on the local routing policy. In fact the > AAA-Server SHOULD discard these packets and send an EAP Failure > packet which stops the authentication process. Actually, I'd argue for a Notification so that the client can figure out what is going on, and *then* an EAP Failure. > Can you clarify which protocol layer you intend > to carry this in? Please keep in mind that there is chartered work within 802.21 as well as 802.1af on Network Discovery, as well as the discussion going on in WIEN. So there are lots of place to put this :) > In fact, most administrators of WLANs do not change > the default SSID (see for example [Pri04] for a study about WLAN > usage in London where approximately 40% of the access points are > running their default SSID.) Such an approach makes the phone book > (see [RFC3017]) approach (as an out-of-band mechanism to associate a > particular service to an identifier) difficult to deploy. This implies that the SSID by itself can't uniquely identify the network, something that can happen even without use of a default SSID (user types in "John's Network"). In these cases the combination of but SSID + BSSID can help differentiate them. > As a summary, to provide a short-term solution the authors suggest to > provide a mechanism to exchange information about the offered and the > desired service between the end host and the access network. Why is this exchange between the host and the "network" and not between the host and the NAS? > Subsequently, this information has to be repeated both in the EAP > method and the AAA infrastructure to give the user and the home > network the ability to detect fraud. Well, channel bindings might be helpful here, but it's a somewhat experimental facility. So if something simpler (like Beacon + 4-way handshake) were available, I'd go that way instead. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 19 00:53:17 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id AAA27923 for ; Mon, 19 Jul 2004 00:53:16 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2343E20295; Mon, 19 Jul 2004 00:39:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D5CE4210DE; Mon, 19 Jul 2004 00:39:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 168BD210DE for ; Mon, 19 Jul 2004 00:38:03 -0400 (EDT) Received: from sj-iport-3.cisco.com (sj-iport-3-in.cisco.com [171.71.176.72]) by mail.frascone.com (Postfix) with ESMTP id 51BC420295 for ; Mon, 19 Jul 2004 00:38:01 -0400 (EDT) Received: from sj-core-5.cisco.com (171.71.177.238) by sj-iport-3.cisco.com with ESMTP; 18 Jul 2004 21:54:52 +0000 X-BrightmailFiltered: true Received: from E2K-SEA-XCH2.sea-alpha.cisco.com (e2k-sea-xch2.cisco.com [10.93.132.68]) by sj-core-5.cisco.com (8.12.10/8.12.6) with ESMTP id i6J4q9Nv001618; Sun, 18 Jul 2004 21:52:10 -0700 (PDT) Received: from jsaloweyw2k01 ([10.82.241.98]) by E2K-SEA-XCH2.sea-alpha.cisco.com with Microsoft SMTPSVC(5.0.2195.6713); Sun, 18 Jul 2004 21:59:51 -0700 From: "Joseph Salowey" To: "'Bernard Aboba'" , Subject: RE: [eap] Proposed Resolution of Issue 215: Comments on Section 3 Message-ID: <00a001c46d4c$52568340$0400000a@amer.cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.5709 In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal X-OriginalArrivalTime: 19 Jul 2004 04:59:52.0241 (UTC) FILETIME=[39C61A10:01C46D4D] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sun, 18 Jul 2004 21:53:21 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable eap-admin@frascone.com wrote: > The body of Issue 215 and the associated discussion can be > found at: http://www.drizzle.com/~aboba/EAP/eapissues.html#Issue%20215 >=20 > The proposed resolution of is as follows. Add the following > text for Section 2.4, and replace Section 3 with the following: >=20 > "2.4. Key Naming >=20 > MSK Name >=20 > This key is created between the EAP peer and EAP server, and is > uniquely named by the concatenation of the string "MSK", EAP > Method Type, EAP peer name, EAP server name, EAP peer nonce, and > the EAP server nonce. Here the EAP peer name and EAP > server name > are the identifiers securely exchanged within the EAP method. > Since multiple MSKs may exist between an EAP peer and > EAP server, > the EAP peer nonce and EAP server nonce allow MSKs to be > differentiated; at least one of these nonces is necessary. The > inclusion of the Method Type in the name ensures that each EAP > method has a distinct name space. >=20 > Note that the components of the MSK Name are only known > by the EAP > method. As a result, the MSK Name is exported from the > method, and > no detailed format of the MSK Name can be specified without a > reference to a particular method. >=20 [Joe] With these definitions the key name length is highly variable. I think it would be better to have a constant length identifier for the = key. A length of 128 bits should be sufficient. Perhaps it can be defined as = the SHA-1 hash of the data listed above (make it 160 bits for simplicity). _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 19 15:26:51 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA18321 for ; Mon, 19 Jul 2004 15:26:50 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8C251206A4; Mon, 19 Jul 2004 15:09:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 1D5F920707; Mon, 19 Jul 2004 15:09:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5B7A420707 for ; Mon, 19 Jul 2004 15:08:54 -0400 (EDT) Received: from ietf.org (odin.ietf.org [132.151.1.176]) by mail.frascone.com (Postfix) with ESMTP id 22F59206A4 for ; Mon, 19 Jul 2004 15:08:52 -0400 (EDT) Received: from CNRI.Reston.VA.US (localhost [127.0.0.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA18149; Mon, 19 Jul 2004 15:23:01 -0400 (EDT) Message-Id: <200407191923.PAA18149@ietf.org> Mime-Version: 1.0 Content-Type: Multipart/Mixed; Boundary="NextPart" To: i-d-announce@ietf.org Cc: eap@frascone.com From: Internet-Drafts@ietf.org X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] I-D ACTION:draft-ietf-eap-keying-03.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 19 Jul 2004 15:23:01 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) --NextPart A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Extensible Authentication Protocol Working Group of the IETF. Title : Extensible Authentication Protocol (EAP) Key Management Framework Author(s) : B. Aboba, et al. Filename : draft-ietf-eap-keying-03.txt Pages : 73 Date : 2004-7-19 The Extensible Authentication Protocol (EAP), defined in [RFC3748], enables extensible network access authentication. This document provides a framework for the generation, transport and usage of keying material generated by EAP authentication algorithms, known as "methods". A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-eap-keying-03.txt To remove yourself from the I-D Announcement list, send a message to i-d-announce-request@ietf.org with the word unsubscribe in the body of the message. You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce to change your subscription settings. Internet-Drafts are also available by anonymous FTP. Login with the username "anonymous" and a password of your e-mail address. After logging in, type "cd internet-drafts" and then "get draft-ietf-eap-keying-03.txt". A list of Internet-Drafts directories can be found in http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt Internet-Drafts can also be obtained by e-mail. Send a message to: mailserv@ietf.org. In the body type: "FILE /internet-drafts/draft-ietf-eap-keying-03.txt". NOTE: The mail server at ietf.org can return the document in MIME-encoded form by using the "mpack" utility. To use this feature, insert the command "ENCODING mime" before the "FILE" command. To decode the response(s), you will need "munpack" or a MIME-compliant mail reader. Different MIME-compliant mail readers exhibit different behavior, especially when dealing with "multipart" MIME messages (i.e. documents which have been split up into multiple messages), so check your local documentation on how to manipulate these messages. Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft. --NextPart Content-Type: Multipart/Alternative; Boundary="OtherAccess" --OtherAccess Content-Type: Message/External-body; access-type="mail-server"; server="mailserv@ietf.org" Content-Type: text/plain Content-ID: <2004-7-19152248.I-D@ietf.org> ENCODING mime FILE /internet-drafts/draft-ietf-eap-keying-03.txt --OtherAccess Content-Type: Message/External-body; name="draft-ietf-eap-keying-03.txt"; site="ftp.ietf.org"; access-type="anon-ftp"; directory="internet-drafts" Content-Type: text/plain Content-ID: <2004-7-19152248.I-D@ietf.org> --OtherAccess-- --NextPart-- _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 19 15:29:38 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA18485 for ; Mon, 19 Jul 2004 15:29:37 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id C8F602118E; Mon, 19 Jul 2004 15:10:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 68FE32099A; Mon, 19 Jul 2004 15:10:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 133782118A for ; Mon, 19 Jul 2004 15:09:12 -0400 (EDT) Received: from ietf.org (odin.ietf.org [132.151.1.176]) by mail.frascone.com (Postfix) with ESMTP id 6CBF520B7B for ; Mon, 19 Jul 2004 15:09:05 -0400 (EDT) Received: from CNRI.Reston.VA.US (localhost [127.0.0.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA18158; Mon, 19 Jul 2004 15:23:15 -0400 (EDT) Message-Id: <200407191923.PAA18158@ietf.org> Mime-Version: 1.0 Content-Type: Multipart/Mixed; Boundary="NextPart" To: i-d-announce@ietf.org Cc: eap@frascone.com From: Internet-Drafts@ietf.org X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] I-D ACTION:draft-ietf-eap-netsel-problem-01.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 19 Jul 2004 15:23:14 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) --NextPart A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Extensible Authentication Protocol Working Group of the IETF. Title : Network Discovery and Selection Problem Author(s) : J. Arkko, B. Aboba Filename : draft-ietf-eap-netsel-problem-01.txt Pages : 29 Date : 2004-7-19 The so called network discovery and selection problem affects network access, particularly in the presence of multiple available wireless accesses and roaming. This problem has been the subject of discussions in various standards bodies. This document summarizes the discussion held about this problem in the Extensible Authentication Protocol (EAP) working group at the IETF. The problem is defined and divided into subproblems, and some constraints for possible solutions are outlined. The document presents also some existing mechanisms which help solve at least parts of the problem, and gives some suggestions on how to proceed for the rest. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-eap-netsel-problem-01.txt To remove yourself from the I-D Announcement list, send a message to i-d-announce-request@ietf.org with the word unsubscribe in the body of the message. You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce to change your subscription settings. Internet-Drafts are also available by anonymous FTP. Login with the username "anonymous" and a password of your e-mail address. After logging in, type "cd internet-drafts" and then "get draft-ietf-eap-netsel-problem-01.txt". A list of Internet-Drafts directories can be found in http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt Internet-Drafts can also be obtained by e-mail. Send a message to: mailserv@ietf.org. In the body type: "FILE /internet-drafts/draft-ietf-eap-netsel-problem-01.txt". NOTE: The mail server at ietf.org can return the document in MIME-encoded form by using the "mpack" utility. To use this feature, insert the command "ENCODING mime" before the "FILE" command. To decode the response(s), you will need "munpack" or a MIME-compliant mail reader. Different MIME-compliant mail readers exhibit different behavior, especially when dealing with "multipart" MIME messages (i.e. documents which have been split up into multiple messages), so check your local documentation on how to manipulate these messages. Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft. --NextPart Content-Type: Multipart/Alternative; Boundary="OtherAccess" --OtherAccess Content-Type: Message/External-body; access-type="mail-server"; server="mailserv@ietf.org" Content-Type: text/plain Content-ID: <2004-7-19152254.I-D@ietf.org> ENCODING mime FILE /internet-drafts/draft-ietf-eap-netsel-problem-01.txt --OtherAccess Content-Type: Message/External-body; name="draft-ietf-eap-netsel-problem-01.txt"; site="ftp.ietf.org"; access-type="anon-ftp"; directory="internet-drafts" Content-Type: text/plain Content-ID: <2004-7-19152254.I-D@ietf.org> --OtherAccess-- --NextPart-- _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 19 20:07:29 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id UAA13022 for ; Mon, 19 Jul 2004 20:07:28 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E55F42032D; Mon, 19 Jul 2004 19:52:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 78418207E0; Mon, 19 Jul 2004 19:52:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 758DB20522 for ; Mon, 19 Jul 2004 19:51:59 -0400 (EDT) Received: from hermes.jf.intel.com (fmr05.intel.com [134.134.136.6]) by mail.frascone.com (Postfix) with ESMTP id 6CE192032D for ; Mon, 19 Jul 2004 19:51:57 -0400 (EDT) Received: from petasus.jf.intel.com (petasus.jf.intel.com [10.7.209.6]) by hermes.jf.intel.com (8.12.9-20030918-01/8.12.9/d: major-outer.mc,v 1.15 2004/01/30 18:16:28 root Exp $) with ESMTP id i6K07T2P008174; Tue, 20 Jul 2004 00:07:29 GMT Received: from orsmsxvs041.jf.intel.com (orsmsxvs041.jf.intel.com [192.168.65.54]) by petasus.jf.intel.com (8.12.9-20030918-01/8.12.9/d: major-inner.mc,v 1.10 2004/03/01 19:21:36 root Exp $) with SMTP id i6K06X3K003425; Tue, 20 Jul 2004 00:07:52 GMT Received: from orsmsx332.amr.corp.intel.com ([192.168.65.60]) by orsmsxvs041.jf.intel.com (SAVSMTP 3.1.2.35) with SMTP id M2004071917035415069 ; Mon, 19 Jul 2004 17:03:56 -0700 Received: from orsmsx408.amr.corp.intel.com ([192.168.65.52]) by orsmsx332.amr.corp.intel.com with Microsoft SMTPSVC(6.0.3790.0); Mon, 19 Jul 2004 17:03:22 -0700 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Subject: RE: [eap] Review of draft-adrangi-eap-network-discovery-01.txt Message-ID: Thread-Topic: [eap] Review of draft-adrangi-eap-network-discovery-01.txt Thread-Index: AcRrYwYO9P6z2tqDSYi8rbx41m0nBQCdqnTg From: "Adrangi, Farid" To: "Bernard Aboba" , Cc: "Jari Arkko" X-OriginalArrivalTime: 20 Jul 2004 00:03:22.0783 (UTC) FILETIME=[F8D7FAF0:01C46DEC] X-Scanned-By: MIMEDefang 2.31 (www . roaringpenguin . com / mimedefang) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 19 Jul 2004 17:03:21 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Hi Bernard, Thanks for another round of comments and helping us in improving the draft - is very much appreciated! Please see my comments inline. BR, Farid > -----Original Message----- > From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] On Behalf > Of Bernard Aboba > Sent: Friday, July 16, 2004 11:28 AM > To: eap@frascone.com > Subject: [eap] Review of draft-adrangi-eap-network-discovery-01.txt >=20 >=20 > Comments on draft-adrangi-eap-network-discovery-01.txt: >=20 > In general, I'm confused as to whether this document is specifying a=20 > general mechanism for providing hints relating to supported=20 > EAP-Response NAIs, or a 3GPP-specific mechanism for network discovery. > If the former, > I'd suggest that the title be changed to "EAP Identity Discovery > Mechanism". If the latter, I'd suggest that the title be changed to: >=20 > "3GPP Network Discovery Mechanism" >=20 The main motivation of the draft is to solve 3GPP VPLMN discovery & selection. However, the proposed solution can be applied to any other mediating network types and therefore I think the current title (" Mediating Network Discovery in the Extensible Authentication Protocol(EAP)") is appropriate. Furthermore, I believe the title and the problem description is consistent with what described in the netselc problem statement draft - if so, I don't really understand the source of the confusion here. Please read more on this topic below. > Whichever tack you are taking should be clearly indicated in the=20 > Appendix. >=20 > Section 1 - Introduction >=20 > I think that in this section you want to present the general problem,=20 > which is how an EAP server can provide a hint to the EAP peer as to=20 > what identity is required in the EAP Response. >=20 First, the intent here is *NOT* to have EAP server to provide this hint - the hint comes from the AP or the access network AAA server. The problem statement draft (draft-ietf-eap-netsel-problem-00.txt) describes four distinct problems: 1) Access Network selection 2) Credential Selection 3) Mediating Network Selection 4) Payload routing. Our focus here is the problem #3 -- specifically, on the mediating network *discovery* aspect of it; the selection part is addressed by 2486bis. Do you see any inconsistency here w.r.t to the problem statement draft? > That problem can occur even where there is only one network > available, but > the NAI provided is not one which the EAP server can recognize. For > example, I roam to a guest network and because SSIDs are not unique, > confusion results and the EAP peer presents the wrong NAI. =20 > While today it > is possible to send a notification telling the user that something has > gone wrong, wouldn't it be better if the problem could be fixed > automatically? >=20 Valid problem. But, I think this is not related to mediating network discovery rather it is a credential selection problem. If so, I would prefer to discuss this in a separated draft if you are okay with it? =20 > It just so happens that this problem needs to be solved > for the purposes of network discovery, but I think that > introducing this early on muddies the waters. >=20 For the purpose of *Mediating Network Discovery*! > For example, while one could argue that advertisement > of mediating networks is something that belongs in the > lower layer, providing a hint about the appropriate > EAP-Response is clearly an EAP function. >=20 We discussed other alternatives (e.g., lower layers) with pros and cons of each in the last IETF (presented by Jari), and there was a consensus that we need an EAP-based solution (at a minimum as a short-term solution). We also decided to have the draft to focus on describing how the problem can be solved using EAP, and not going into describing other alternatives that can be implemented today or enabled by future enhancements/extensions from IEEE. FYI - in the previous versions of the draft, we had a section describing other alternatives with pros and cons of each, and the rationale for the proposed EAP-base method. =20 > So I think this section needs to clearly articulate the > general problem or else the document becomes vulnerable > to the criticism that it represents a layer violation. >=20 =20 I still don't understand why you think the problem is not clear. And so far, I haven't seen any criticism that the proposed solution represents a layer violation. How can this be a layer violation if you believe that the selection can be done using NAI decoration (as specified in your draft 2486bis)? > Personally, I'd prefer if this section stated up front > some basic aspects of NAIRealms, such as: >=20 > * It builds on the NAI Realm syntax specified in > RFC 2486bis; >=20 This is mentioned in the introduction section (see the quote below). But, we can put more emphasis on it if you want? " ... Section 2.7 of [2486bis] discusses the conditions upon which NAIs can be used to affect AAA routing, i.e., problem 3 above. Problems 1 and 2 are discussed in this document " > * It provides a hint as to the NAI Realm that the > EAP Server is expecting, enabling improved > robustness; >=20 We are talking about AAA routing here -- this is about providing a hint (in form of NAI realms) to the EAP peer by an AP or access network AAA server. What is the role of "EAP server" in this context? > * It is compatible with any EAP method; Ok. =20 >=20 > * It is unsecured -- and therefore may not be > preferable to secured identity selection mechanisms, > such as RFC 3770; >=20 The fact that the mediating network discovery process is insecure is mentioned in the security section of the draft. This draft has decoupled authentication from the mediating network discovery process. This decoupling is especially useful for networks like the 3GPP where SIM is used for authentication once a mediating network is discovered / selected. In conclusion, IMO, the comparison with RFC 3770 will not make sense here and therefore it should not be discussed in this draft. Agree? =20 > * It may enable additional credential disclosure attacks,=20 > although only if > insecure EAP methods are used; >=20 I do not see how this will be true for 3GPP networks for example. See my comments to your previous question. > Personally, I see mediating network discovery as only > one application of this specification and would prefer > that "Application" to be discussed later on, or even > moved to an Appendix. >=20 IMO, the draft is clear on usage model for mediating network discovery and emphasizes that it should not be extended to solve other problems.=20 The draft describes a well identified and a specific problem with a narrow scope that requires an immediate solution in our industry. It maps to one of the four identified areas in the problem statement draft and I believe we should not try to extend it for solving any other more general problems. > Since the diagrams mention "AAA" I'm not even sure why > the RADIUS disclaimer is necessary. You could just say > that "this mechanism is compatible with > either the RADIUS or Diameter protocol". >=20 This is what draft says: " RADIUS [2] protocol has been assumed for AAA mediation between the access network and the home network although Diameter [3] could also be used instead of RADIUS without introducing significant architectural differences. " The reason for this is to give more specific and clear examples when we describe implementation notes or the delivery option mechanisms in the appendix. > Section 2 >=20 > Somewhere I think you need to describe how the functionality > in this specification affects behavior of [RFC3748] implementations, > before launching into the grammar. Otherwise this is left to the > imagination which is a bad thing given that 3GPP has requested a > review of compatibility with [RFC3748]. >=20 > I'd suggest that you need a section prior to the existing Section 2. >=20 > Here is what Section 5.1 of [RFC3748] says: >=20 > " The Identity Type is used to query the identity of the peer. > Generally, the authenticator will issue this as the initial > Request. An optional displayable message MAY be included to > prompt the peer in the case where there is an expectation of > interaction with a user. A Response of Type 1 (Identity) SHOULD > be sent in Response to a Request with a Type of 1 (Identity). >=20 > Some EAP implementations piggy-back various options into the > Identity Request after a NUL-character. By default, an EAP > implementation SHOULD NOT assume that an Identity Request or > Response can be larger than 1020 octets." >=20 > and later: >=20 > " Implementation Note: The peer MAY obtain the Identity via=20 > user input. > It is suggested that the authenticator retry the Identity=20 > Request in > the case of an invalid Identity or authentication failure to allow > for potential typos on the part of the user. It is suggested that > the Identity Request be retried a minimum of 3 times before > terminating the authentication. The Notification Request=20 > MAY be used > to indicate an invalid authentication attempt prior to=20 > transmitting a > new Identity Request (optionally, the failure MAY be=20 > indicated within > the message of the new Identity Request itself)." >=20 > Given the above, you need to describe the following: >=20 > * How the specification interacts with other existing piggy-back > practices. As I understand it, the grammar is intentionally made > compatible with those existing extensions, but you should say that. >=20 Are you referring to other implementation that already use the EAP-Identity type-data field (the space after the null) in proprietary manner? Please clarify. =20 > * How retry behaviors are affected. How are endless loops prevented? > For example, is the [RFC3748] behavior unmodified? >=20 Yes. We will add a text that the proposed solution is fully compliant with RFC 3748. Unless you see some inconsistency here? > * How errors are handled. Is Notification used to inform the user > that something has gone wrong? Or do things just break without > notice? >=20 Error handling is done according to RFC 3748. > * How the proposed functionality works with the minimum > EAP MTU size of 1020 octets. Note that since the functionality > in question is already used for other purposes, you can't necessarily > assume that you have the entire EAP Request to yourself. How > many NAIRealms can fit within what might be less than 1020 octets? > Is this enough? >=20 We can provide general guidelines on it e.g. from 3GPP in the implementation considerations section of the draft. A Realm in 3GPP will be mnc.mcc@3gppnetwork.org. With maximum lengths for mnc and mcc to be 3 characters, the realm will be 23 characters followed by ";". This would provide space for roughly 42 mediating networks in 1020 octets. We Believe this to be quite enough especially when this information is only considered a hint and the serving network is not required to provide an exhaustive list of mediating networks. Please note that in 3GPP we are working to convey the VPLMN name in less number of characters -- for example, just mnc.mcc. This means that the space can utilized much more efficiently. So how about the following text to be added in Section 4? "Because of space constraints (imposed by the link MTU) in EAP-Identity Request message, the maximum size of mediating networks related information is roughly limited to 1020 octets. In the case of 3GPP for example, a realm will be mnc.mcc@3gppnetwork.org. With maximum lengths for mnc and mcc to be 3 characters, the realm will be 23 characters followed by ";". This would provide space for carrying information on 42 mediating networks in 1020 octets. Optimization of 3GPP mediating network information carried in EAP-Identity Request message is possible by simply providing only the mnc and mcc part of the realm, i.e., mncmcc followed by a ";". This optimization will utilize the space much more efficiently, and it allows information on more mediating networks to be conveyed in the EAP-Identity Request." > Sections 3 and 4 - These sections seem to belong with Appendix A, > especially since that Appendix already references them. > _______________________________________________ This is more like organization issue -- we can discuss it once we are done with closing all technical issues. > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap >=20 _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eakkt@pacbell.net Tue Jul 20 10:03:14 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA20617; Tue, 20 Jul 2004 10:03:13 -0400 (EDT) Received: from host50.foretec.com ([65.246.255.50] helo=mx2.foretec.com) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1BmvDI-0000TN-TA; Tue, 20 Jul 2004 10:03:25 -0400 Received: from [200.161.10.230] (helo=200-161-10-230.speedyterra.com.br) by mx2.foretec.com with smtp (Exim 4.24) id 1BmvCw-0001v9-KX; Tue, 20 Jul 2004 10:03:07 -0400 X-Message-Info: JaW82oJSfbgGESz885u5VK70CdkQIo Received: from q42.sprintmail.com (57.219.99.38) by glp7-ttg.sprintmail.com with Microsoft SMTPSVC(5.0.2195.6824); Tue, 20 Jul 2004 13:56:28 -0100 Received: from propelagnosticcootg185 (beechwood68.20.218.84) by sprintmail.com (elwfd19) with SMTP id <98072510503235zzb1cxa> (Authid: RoyKimble); Tue, 20 Jul 2004 20:54:28 +0600 From: "BEST SOFTWARE- at cheaper " To: "'Eap-archive'" Subject: MS - Corel - Adobe at throw.away whole.sale prices - Eap-archive vnj Date: Tue, 20 Jul 2004 19:00:28 +0400 Message-ID: <737fa6umw975$7z28oo852$555dg255iihb@breadwinnerborneothh592938> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--30386871804240864882" X-Spam-Score: 22.1 (++++++++++++++++++++++) X-Spam-Flag: YES X-Scan-Signature: d0bdc596f8dd1c226c458f0b4df27a88 ----30386871804240864882 Content-Type: text/html; Content-Transfer-Encoding: 7Bit classmategundersondurrellhousework

 

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Tue, 20 Jul 2004 11:32:33 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8B4682123B; Tue, 20 Jul 2004 11:18:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6761F21234; Tue, 20 Jul 2004 11:18:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6A09121234 for ; Tue, 20 Jul 2004 11:17:22 -0400 (EDT) Received: from goliath.siemens.de (goliath.siemens.de [192.35.17.28]) by mail.frascone.com (Postfix) with ESMTP id 7B70F206B0 for ; Tue, 20 Jul 2004 11:17:20 -0400 (EDT) Received: from mail2.siemens.de (mail2.siemens.de [139.25.208.11]) by goliath.siemens.de (8.12.6/8.12.6) with ESMTP id i6KFVX7Q025584; Tue, 20 Jul 2004 17:31:33 +0200 Received: from mchp9daa.mch.sbs.de (mchp9daa.mch.sbs.de [139.25.137.99]) by mail2.siemens.de (8.11.7/8.11.7) with ESMTP id i6KFVW406940; Tue, 20 Jul 2004 17:31:32 +0200 (MEST) Received: by mchp9daa.mch.sbs.de with Internet Mail Service (5.5.2657.72) id <3SSXW8X6>; Tue, 20 Jul 2004 17:31:32 +0200 Message-ID: <2A8DB02E3018D411901B009027FD3A3F046863F5@mchp905a.mch.sbs.de> From: Tschofenig Hannes To: "'jari.arkko@piuha.net'" , Wolfgang.Groeting@siemens.com Cc: eap@frascone.com Subject: RE: [eap] comments on draft-groeting-eap-netselection-results-00. txt MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 20 Jul 2004 17:30:28 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) hi jari, thanks for your quick response. a short response to your privacy related comment. ~snip~ > > 2.2.5 Privacy Policy > > This is interesting, though maybe not so critical. The > location of the user will be roughly known by his IP address > in any case. And I suspect that there are legal interception > & goverment regulations that dictate that the networks have > to hand over any information in any case, if requested. So it > isn't clear to me what value an advertisement of a privacy policy has. privacy is a complex subject, as you know. there are different places (access network, intermediate networks, end hosts, home network, etc.) and different layers (network layer, link layer, application layer) where information is leaking, which can harm the user's privacy. hence, this simple extension cannot solve all privacy problems. things start to be problematic if a users long term identifier (such as a NAI) can be associated with his location. the visited network might have access to such a long term identifier. to be more specific, i had the work done with radius and geopriv in mind when i wrote this text. see http://www.ietf.org/internet-drafts/draft-tschofenig-geopriv-radius-lo-00.tx t i don't agree with you when it comes to issues of 'if i know your ip address then i know your location'. the work in the geopriv working group showed that there are much more issues to think about. it is true that there are legal inception and govermental regulations that need to be considered. today, if you use a wireless lan hotspot then users typically experience a high degree of privacy. this might change in the near future but we should try to preserve the users privacy as far as possible. if a network has to perform legal interception then it could indicate this fact. ciao hannes _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 20 11:35:01 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA28449 for ; Tue, 20 Jul 2004 11:35:01 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 9905D21244; Tue, 20 Jul 2004 11:20:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 0050121239; Tue, 20 Jul 2004 11:20:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E98B721237 for ; Tue, 20 Jul 2004 11:19:06 -0400 (EDT) Received: from goliath.siemens.de (goliath.siemens.de [192.35.17.28]) by mail.frascone.com (Postfix) with ESMTP id 02A63206B0 for ; Tue, 20 Jul 2004 11:19:05 -0400 (EDT) Received: from mail2.siemens.de (mail2.siemens.de [139.25.208.11]) by goliath.siemens.de (8.12.6/8.12.6) with ESMTP id i6KFXH7Q027112; Tue, 20 Jul 2004 17:33:18 +0200 Received: from mchp9daa.mch.sbs.de (mchp9daa.mch.sbs.de [139.25.137.99]) by mail2.siemens.de (8.11.7/8.11.7) with ESMTP id i6KFXH408408; Tue, 20 Jul 2004 17:33:17 +0200 (MEST) Received: by mchp9daa.mch.sbs.de with Internet Mail Service (5.5.2657.72) id <3SSXW8ZL>; Tue, 20 Jul 2004 17:33:17 +0200 Message-ID: <2A8DB02E3018D411901B009027FD3A3F046863F6@mchp905a.mch.sbs.de> From: Tschofenig Hannes To: "'Bernard Aboba'" , eap@frascone.com Subject: RE: [eap] Re: comments on draft-groeting-eap-netselection-results -00.txt MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 20 Jul 2004 17:32:19 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) hi bernard, i also have to thank you for your quick response: please find a few responses to your comments below: ~snip~ > > > In fact, most administrators of WLANs do not change > the > default SSID (see for example [Pri04] for a study about WLAN > > usage in London where approximately 40% of the access > points are > running their default SSID.) Such an approach > makes the phone book > (see [RFC3017]) approach (as an > out-of-band mechanism to associate a > particular service to > an identifier) difficult to deploy. > > This implies that the SSID by itself can't uniquely identify > the network, something that can happen even without use of a > default SSID (user types in "John's Network"). In these > cases the combination of but SSID + BSSID can help > differentiate them. the combination of the ssid with the bssid (which is effectively a 48-bit mac address) makes the identification unique. given the large number of wlan hotspots i think the phone book entry can still be difficult to deploy. an additional step of mapping this identifier to network name which can be progressed by humans might be desireable. even automatic processing might be complicated if you have to carry a 10mb file of identifiers and their services with you. this also requires that you register your identifier pair somewhere. what do you think? > > > As a summary, to provide a short-term solution the > authors suggest to > provide a mechanism to exchange > information about the offered and the > desired service > between the end host and the access network. > > Why is this exchange between the host and the "network" and > not between the host and the NAS? i should have said NAS. on the other hand i hope that all NAS devices within a "network" distribute the same information to the end host. hence, it would also be possible to speak a "network". terminology can, however, be confusing. > > > Subsequently, this information has to be repeated both in > the EAP > method and the AAA infrastructure to give the > user and the home > network the ability to detect fraud. > > Well, channel bindings might be helpful here, but it's a > somewhat experimental facility. So if something simpler > (like Beacon + 4-way > handshake) were available, I'd go that way instead. this is certainly a simpler mechanism but cannot prevent against certain attacks (such as the lying nas problem). ciao hannes > > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 20 12:20:49 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA01969 for ; Tue, 20 Jul 2004 12:20:48 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 32D2421253; Tue, 20 Jul 2004 12:06:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E5BBE2074F; Tue, 20 Jul 2004 12:06:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B03A32074F for ; Tue, 20 Jul 2004 12:05:12 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 5BC3B1FEDE for ; Tue, 20 Jul 2004 12:05:10 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6KGGlN27849; Tue, 20 Jul 2004 09:16:47 -0700 From: Bernard Aboba To: Tschofenig Hannes Cc: eap@frascone.com Subject: RE: [eap] Re: comments on draft-groeting-eap-netselection-results -00.txt In-Reply-To: <2A8DB02E3018D411901B009027FD3A3F046863F6@mchp905a.mch.sbs.de> Message-ID: References: <2A8DB02E3018D411901B009027FD3A3F046863F6@mchp905a.mch.sbs.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 20 Jul 2004 09:16:47 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > even automatic processing might be complicated if you have to > carry a 10mb file of identifiers and their services with you. > this also requires that you register your identifier pair > somewhere. > > what do you think? The SSID is a non-unique identifier. This will affect all schemes that attempt to use the SSID as an identifier of a network configuration. It does not matter whether the schemes are dynamic or static. In particular, there are SSIDs that ship by default on APs. For those "default" SSIDs, the SSID isn't just a non-unique identifier with *some* potential for duplication; duplication is the intent, making the SSID meaningless for network identification. One potential mechanism for dis-ambiguating "default" SSIDs is to use the BSSID ot distinguish them. However, the implicit assumption here is that "default" SSIDs are not used in large networks, but rather in situations where only a small number (usually one) AP is deployed. Thus the SSID + BSSID combination may uniquely identify a single AP network. If this assumption does not hold, a host of problems arise. But these problems will also afflict dynamic as well as static techniques that rely on the SSID as a means of network identification. The solution to this problem is probably to utilize another mechanism with guaranteed uniqueness to identify WLAN networks. However, given that the problem is fundamental to 802.11, it seems likely that 802.11 will wish to become involved in the solution. The recent "straw poll" indicating a desire to standardize Network Selection within 802.11 is a likely indication of this. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 20 12:36:21 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA03309 for ; Tue, 20 Jul 2004 12:36:21 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 99B8021250; Tue, 20 Jul 2004 12:22:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4074521251; Tue, 20 Jul 2004 12:22:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id CB08421250 for ; Tue, 20 Jul 2004 12:21:53 -0400 (EDT) Received: from thoth.sbs.de (thoth.sbs.de [192.35.17.2]) by mail.frascone.com (Postfix) with ESMTP id E16C81FEDE for ; Tue, 20 Jul 2004 12:21:51 -0400 (EDT) Received: from mail2.siemens.de (mail2.siemens.de [139.25.208.11]) by thoth.sbs.de (8.12.6/8.12.6) with ESMTP id i6KGa5Pc014366; Tue, 20 Jul 2004 18:36:05 +0200 Received: from mchp9daa.mch.sbs.de (mchp9daa.mch.sbs.de [139.25.137.99]) by mail2.siemens.de (8.11.7/8.11.7) with ESMTP id i6KGa4427814; Tue, 20 Jul 2004 18:36:04 +0200 (MEST) Received: by mchp9daa.mch.sbs.de with Internet Mail Service (5.5.2657.72) id <3SSXW9ZB>; Tue, 20 Jul 2004 18:36:04 +0200 Message-ID: <2A8DB02E3018D411901B009027FD3A3F046863FB@mchp905a.mch.sbs.de> From: Tschofenig Hannes To: "'Bernard Aboba'" Cc: eap@frascone.com Subject: RE: [eap] Re: comments on draft-groeting-eap-netselection-results -00.txt MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 20 Jul 2004 18:34:15 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) hi bernard, i know that there is a problem when you use a non-unique identifier. with the goal of assigning certain properties or capabilities to a network you might want to identify it somehow. as you said, you could use the pair for this purpose (or even the bssid alone). since these identifiers are used for a few things (such as identification, authentication and authorization) you might want to have a more convient identifier which means something to an end user. otherwise you could just use the hash of a public key and truncate it to 48 bits. such an identifier would look ugly (for a user) but would have some security properties. ciao hannes > -----Original Message----- > From: Bernard Aboba [mailto:aboba@internaut.com] > Sent: Tuesday, July 20, 2004 6:17 PM > To: Tschofenig Hannes > Cc: eap@frascone.com > Subject: RE: [eap] Re: comments on > draft-groeting-eap-netselection-results -00.txt > > > even automatic processing might be complicated if you have > to carry a > > 10mb file of identifiers and their services with you. > > this also requires that you register your identifier > > pair somewhere. > > > > what do you think? > > The SSID is a non-unique identifier. This will affect all > schemes that attempt to use the SSID as an identifier of a > network configuration. > It does not matter whether the schemes are dynamic or static. > > In particular, there are SSIDs that ship by default on APs. > For those "default" SSIDs, the SSID isn't just a non-unique > identifier with *some* potential for duplication; > duplication is the intent, making the SSID meaningless for > network identification. One potential mechanism for > dis-ambiguating "default" SSIDs is to use the BSSID ot > distinguish them. > However, the implicit assumption here is that "default" SSIDs > are not used in large networks, but rather in situations > where only a small number (usually one) AP is deployed. Thus > the SSID + BSSID combination may uniquely identify a single > AP network. > > If this assumption does not hold, a host of problems arise. > But these problems will also afflict dynamic as well as > static techniques that rely on the SSID as a means of network > identification. > > The solution to this problem is probably to utilize another > mechanism with guaranteed uniqueness to identify WLAN > networks. However, given that the problem is fundamental to > 802.11, it seems likely that 802.11 will wish to become > involved in the solution. The recent "straw poll" indicating > a desire to standardize Network Selection within 802.11 is a > likely indication of this. > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 20 12:48:57 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA04344 for ; Tue, 20 Jul 2004 12:48:57 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4F0A32126B; Tue, 20 Jul 2004 12:30:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E884720AB3; Tue, 20 Jul 2004 12:30:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 886E12125B for ; Tue, 20 Jul 2004 12:29:34 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 494EA20EA4 for ; Tue, 20 Jul 2004 12:29:31 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6KGf9729173; Tue, 20 Jul 2004 09:41:09 -0700 From: Bernard Aboba To: Tschofenig Hannes Cc: eap@frascone.com Subject: RE: [eap] Re: comments on draft-groeting-eap-netselection-results -00.txt In-Reply-To: <2A8DB02E3018D411901B009027FD3A3F046863FB@mchp905a.mch.sbs.de> Message-ID: References: <2A8DB02E3018D411901B009027FD3A3F046863FB@mchp905a.mch.sbs.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 20 Jul 2004 09:41:09 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > since these identifiers are used for a few things (such as identification, > authentication and authorization) you might want to have a more convient > identifier which means something to an end user. otherwise you could just > use the hash of a public key and truncate it to 48 bits. such an identifier > would look ugly (for a user) but would have some security properties. The problem with hashes is that at some point the user may want to know what they are connected to. We've already concluded that the SSID can be confusing; does "linksys" mean you are at home, or in a cafe within reach of a small business that also purchased an AP from the same vendor? Displaying a hash to the user probably wouldn't help the user, even though it might be quite useful to the machine. That is I think one of the motivations behind the use of NAIRealms as identifiers. Because they are FQDNS, the registration is handled by IANA and so some level of uniqueness is provided. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 20 12:54:21 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA04781 for ; Tue, 20 Jul 2004 12:54:21 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4577E2125A; Tue, 20 Jul 2004 12:40:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 0088020A9B; Tue, 20 Jul 2004 12:40:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 1FC5020A9B for ; Tue, 20 Jul 2004 12:39:54 -0400 (EDT) Received: from thoth.sbs.de (thoth.sbs.de [192.35.17.2]) by mail.frascone.com (Postfix) with ESMTP id 36214205D2 for ; Tue, 20 Jul 2004 12:39:52 -0400 (EDT) Received: from mail2.siemens.de (mail2.siemens.de [139.25.208.11]) by thoth.sbs.de (8.12.6/8.12.6) with ESMTP id i6KGs5Pc026141; Tue, 20 Jul 2004 18:54:05 +0200 Received: from mchp9daa.mch.sbs.de (mchp9daa.mch.sbs.de [139.25.137.99]) by mail2.siemens.de (8.11.7/8.11.7) with ESMTP id i6KGs5409418; Tue, 20 Jul 2004 18:54:05 +0200 (MEST) Received: by mchp9daa.mch.sbs.de with Internet Mail Service (5.5.2657.72) id <3SSXW0AJ>; Tue, 20 Jul 2004 18:54:05 +0200 Message-ID: <2A8DB02E3018D411901B009027FD3A3F046863FC@mchp905a.mch.sbs.de> From: Tschofenig Hannes To: "'Bernard Aboba'" Cc: eap@frascone.com Subject: RE: [eap] Re: comments on draft-groeting-eap-netselection-results -00.txt MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 20 Jul 2004 18:51:40 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) hi bernard, i fully agree with you. the ssid is unstructured and the bssid has no meaning to the user. the introduction of the NAIRealms as an identifier is certainly useful. ciao hannes > > since these identifiers are used for a few things (such as > > identification, authentication and authorization) you might want to > > have a more convient identifier which means something to an > end user. > > otherwise you could just use the hash of a public key and > truncate it > > to 48 bits. such an identifier would look ugly (for a user) > but would have some security properties. > > The problem with hashes is that at some point the user may > want to know what they are connected to. We've already > concluded that the SSID can be confusing; does "linksys" > mean you are at home, or in a cafe within reach of a small > business that also purchased an AP from the same vendor? > Displaying a hash to the user probably wouldn't help the > user, even though it might be quite useful to the machine. > > That is I think one of the motivations behind the use of > NAIRealms as identifiers. Because they are FQDNS, the > registration is handled by IANA and so some level of > uniqueness is provided. > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 20 15:48:27 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA21195 for ; Tue, 20 Jul 2004 15:48:25 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id C819B20160; Tue, 20 Jul 2004 15:34:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 09081207C5; Tue, 20 Jul 2004 15:34:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 71502207C5 for ; Tue, 20 Jul 2004 15:33:45 -0400 (EDT) Received: from ietf.org (odin.ietf.org [132.151.1.176]) by mail.frascone.com (Postfix) with ESMTP id 14D7B20160 for ; Tue, 20 Jul 2004 15:33:43 -0400 (EDT) Received: from CNRI.Reston.VA.US (localhost [127.0.0.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA21153; Tue, 20 Jul 2004 15:47:54 -0400 (EDT) Message-Id: <200407201947.PAA21153@ietf.org> Mime-Version: 1.0 Content-Type: Multipart/Mixed; Boundary="NextPart" To: i-d-announce@ietf.org Cc: eap@frascone.com From: Internet-Drafts@ietf.org X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] I-D ACTION:draft-ietf-eap-statemachine-04.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 20 Jul 2004 15:47:54 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) --NextPart A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Extensible Authentication Protocol Working Group of the IETF. Title : State Machines for Extensible Authentication Protocol (EAP) Peer and Authenticator Author(s) : J. Vollbrecht, et al. Filename : draft-ietf-eap-statemachine-04.txt,.ps,.pdf Pages : 51 Date : 2004-7-20 This document describes a set of state machines for EAP peer, EAP standalone authenticator (non-pass-through), EAP backend authenticator (for use on Authentication, Authorization and Accounting (AAA) servers), and EAP full authenticator (for both local and pass-through). This set of state machines shows how EAP can be implemented to support deployment in either a peer/authenticator or peer/authenticator/AAA Server environment. The peer and standalone authenticator machines are illustrative of how the EAP protocol defined in [RFC3748] may be implemented. The backend and full/ pass-through authenticators illustrate how EAP/AAA protocol support defined in [RFC3579] may be implemented. Where there are differences [RFC3748]/[RFC3579] are authoritative. The state machines are based on the EAP "Switch" model. This model includes events and actions for the interaction between the EAP Switch and EAP methods. A brief description of the EAP "Switch" model is given in the Introduction section. The State Machine and associated model are informative only. Implementations may achieve the same results using different methods. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-eap-statemachine-04.txt To remove yourself from the I-D Announcement list, send a message to i-d-announce-request@ietf.org with the word unsubscribe in the body of the message. You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce to change your subscription settings. Internet-Drafts are also available by anonymous FTP. Login with the username "anonymous" and a password of your e-mail address. After logging in, type "cd internet-drafts" and then "get draft-ietf-eap-statemachine-04.txt". A list of Internet-Drafts directories can be found in http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt Internet-Drafts can also be obtained by e-mail. Send a message to: mailserv@ietf.org. In the body type: "FILE /internet-drafts/draft-ietf-eap-statemachine-04.txt". NOTE: The mail server at ietf.org can return the document in MIME-encoded form by using the "mpack" utility. To use this feature, insert the command "ENCODING mime" before the "FILE" command. To decode the response(s), you will need "munpack" or a MIME-compliant mail reader. Different MIME-compliant mail readers exhibit different behavior, especially when dealing with "multipart" MIME messages (i.e. documents which have been split up into multiple messages), so check your local documentation on how to manipulate these messages. Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft. --NextPart Content-Type: Multipart/Alternative; Boundary="OtherAccess" --OtherAccess Content-Type: Message/External-body; access-type="mail-server"; server="mailserv@ietf.org" Content-Type: text/plain Content-ID: <2004-7-20155334.I-D@ietf.org> ENCODING mime FILE /internet-drafts/draft-ietf-eap-statemachine-04.txt --OtherAccess Content-Type: Message/External-body; name="draft-ietf-eap-statemachine-04.txt"; site="ftp.ietf.org"; access-type="anon-ftp"; directory="internet-drafts" Content-Type: text/plain Content-ID: <2004-7-20155334.I-D@ietf.org> --OtherAccess-- --NextPart-- _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 20 16:04:42 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id QAA23063 for ; Tue, 20 Jul 2004 16:04:42 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 01499212AD; Tue, 20 Jul 2004 15:50:06 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 094F0212A3; Tue, 20 Jul 2004 15:50:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3D990212A3 for ; Tue, 20 Jul 2004 15:49:22 -0400 (EDT) Received: from mailout3.samsung.com (mailout3.samsung.com [203.254.224.33]) by mail.frascone.com (Postfix) with ESMTP id 8E278212A0 for ; Tue, 20 Jul 2004 15:49:20 -0400 (EDT) Received: from custom-daemon.mailout3.samsung.com by mailout3.samsung.com (iPlanet Messaging Server 5.2 HotFix 1.17 (built Jun 23 2003)) id <0I1600E012DWWU@mailout3.samsung.com> for eap@frascone.com; Wed, 21 Jul 2004 05:03:32 +0900 (KST) Received: from ep_mmp2 (mailout3.samsung.com [203.254.224.33]) by mailout3.samsung.com (iPlanet Messaging Server 5.2 HotFix 1.17 (built Jun 23 2003)) with ESMTP id <0I160098Q2DVC2@mailout3.samsung.com> for eap@frascone.com; Wed, 21 Jul 2004 05:03:31 +0900 (KST) Received: from Alperyegin ([105.253.155.3]) by mmp2.samsung.com (iPlanet Messaging Server 5.2 HotFix 1.17 (built Jun 23 2003)) with ESMTPA id <0I1600KUV2DSSE@mmp2.samsung.com> for eap@frascone.com; Wed, 21 Jul 2004 05:03:31 +0900 (KST) From: Alper Yegin In-reply-to: <2A8DB02E3018D411901B009027FD3A3F046863FC@mchp905a.mch.sbs.de> To: eap@frascone.com Message-id: <002b01c46e94$a53efbc0$6401a8c0@sisa.samsung.com> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Mailer: Microsoft Outlook, Build 10.0.2627 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] A comment on draft-groeting-eap-netselection-results-00.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 20 Jul 2004 13:03:35 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7BIT The usage of EAP the Extensible Authentication Protocol in IEEE 802.1x/IEEE 802.11i or also PANA never aimed to allow authentication of the access network to the end host. I think what we really care is the authorization: Is this NAS authorized to serve the client for network access service? AS should make this determination, looking at the ID of the NAS and authenticating it as a part of the RADIUS/Diameter exchange. At the end of the full round of AAA, NAS has the blessing of the AS. By the virtue of having the right crypto key (AAA-Key), it can prove that to the client as well. Alper _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From Administrator@computeradmin.org Tue Jul 20 22:00:03 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id WAA27161; Tue, 20 Jul 2004 22:00:03 -0400 (EDT) Received: from [219.240.1.4] (helo=HUNTER02) by ietf-mx.ietf.org with smtp (Exim 4.33) id 1Bn6P7-0007PJ-1D; Tue, 20 Jul 2004 22:00:22 -0400 Received: from elq.rnlsqy.com [236.20.163.245] by HUNTER02 with SMTP; Wed, 21 Jul 2004 08:02:38 +0500 Message-ID: From: "Admin" To: ana@ietf.org Subject: Staff Bulletin Date: Wed, 21 Jul 04 08:02:38 GMT X-Priority: 1 X-MSMail-Priority: High X-Mailer: Microsoft Outlook, Build 10.0.2616 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="8_D42_2.0B_E_C4.__D_8D" X-Spam-Score: 26.7 (++++++++++++++++++++++++++) X-Spam-Flag: YES X-Scan-Signature: d8ae4fd88fcaf47c1a71c804d04f413d This is a multi-part message in MIME format. --8_D42_2.0B_E_C4.__D_8D Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Attention All Nonprofit Organizations: Members, Staff and Associates: You Must Respond By 5 P.M. 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Call Avtech Direct 1-800-884-9510 before 5 P.M. Thursday, July 22, 2004 Visit our website at http://www.avtechdirect-nonprofits.com If you wish to unsubscribe from this list, please go to: http://www.computeradvice.org/unsubscribe.asp Avtech Direct 22647 Ventura Blvd., Suite 374 Woodland Hills, CA 91364 --8_D42_2.0B_E_C4.__D_8D-- From eap-admin@frascone.com Wed Jul 21 01:15:50 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id BAA18838 for ; Wed, 21 Jul 2004 01:15:50 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id DE12120B28; Wed, 21 Jul 2004 00:59:09 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3526720A3C; Wed, 21 Jul 2004 00:59:06 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3CA262048D for ; Wed, 21 Jul 2004 00:58:17 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id DF5D520339 for ; Wed, 21 Jul 2004 00:58:14 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id E87CE89833 for ; Wed, 21 Jul 2004 08:12:27 +0300 (EEST) Message-ID: <40FDFA04.3080603@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "eap@frascone.com" References: <200407202002.QAA22591@ietf.org> In-Reply-To: <200407202002.QAA22591@ietf.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Fwd: I-D ACTION:draft-josefsson-pppext-eap-tls-eap-08.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 21 Jul 2004 08:07:16 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Internet-Drafts@ietf.org wrote: > A New Internet-Draft is available from the on-line Internet-Drafts directories. > > > Title : Protected EAP Protocol (PEAP) Version 2 > Author(s) : S. Josefsson, et al. > Filename : draft-josefsson-pppext-eap-tls-eap-08.txt > Pages : 87 > Date : 2004-7-20 > > The Extensible Authentication Protocol (EAP) provides support for > multiple authentication methods. This document defines the Protected > Extensible Authentication Protocol (PEAP) Version 2, which provides > an encrypted and authenticated tunnel based on transport layer > security (TLS) that encapsulates EAP authentication mechanisms. > PEAPv2 uses TLS to protect against rogue authenticators, protect > against various attacks on the confidentiality and integrity of the > inner EAP method exchange and provide EAP peer identity privacy. > PEAPv2 also provides support for chaining multiple EAP mechanisms, > cryptographic binding between authentications performed by inner EAP > mechanisms and the tunnel, exchange of arbitrary parameters (TLVs), > and fragmentation and reassembly. > > A URL for this Internet-Draft is: > http://www.ietf.org/internet-drafts/draft-josefsson-pppext-eap-tls-eap-08.txt _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 21 01:20:11 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id BAA19032 for ; Wed, 21 Jul 2004 01:20:11 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 710DE20CFD; Wed, 21 Jul 2004 01:00:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E4DCF20A73; Wed, 21 Jul 2004 01:00:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 92C472048F for ; Wed, 21 Jul 2004 00:58:24 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id 6940520339 for ; Wed, 21 Jul 2004 00:58:22 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id AFA9289833 for ; Wed, 21 Jul 2004 08:12:36 +0300 (EEST) Message-ID: <40FDFA0D.9030203@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "eap@frascone.com" References: <200407202019.QAA25465@ietf.org> In-Reply-To: <200407202019.QAA25465@ietf.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Fwd: I-D ACTION:draft-ietf-pppext-eap-ttls-05.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 21 Jul 2004 08:07:25 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Internet-Drafts@ietf.org wrote: > A New Internet-Draft is available from the on-line Internet-Drafts directories. > This draft is a work item of the Point-to-Point Protocol Extensions Working Group of the IETF. > > Title : EAP Tunneled TLS Authentication Protocol (EAP-TTLS) > Author(s) : P. Funk, et al. > Filename : draft-ietf-pppext-eap-ttls-05.txt > Pages : 52 > Date : 2004-7-20 > > EAP-TTLS is an EAP protocol that extends EAP-TLS. In EAP-TLS, a TLS > handshake is used to mutually authenticate a client and server. EAP- > TTLS extends this authentication negotiation by using the secure > connection established by the TLS handshake to exchange additional > information between client and server. In EAP-TTLS, the TLS > handshake may be mutual; or it may be one-way, in which only the > server is authenticated to the client. The secure connection > established by the handshake may then be used to allow the server to > authenticate the client using existing, widely-deployed > authentication infrastructures such as RADIUS. The authentication of > the client may itself be EAP, or it may be another authentication > protocol such as PAP, CHAP, MS-CHAP or MS-CHAP-V2. > > A URL for this Internet-Draft is: > http://www.ietf.org/internet-drafts/draft-ietf-pppext-eap-ttls-05.txt _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From nv33135@yahoo.com Wed Jul 21 01:36:10 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id BAA20099; Wed, 21 Jul 2004 01:36:10 -0400 (EDT) Received: from host50.foretec.com ([65.246.255.50] helo=mx2.foretec.com) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1Bn9mH-0004vk-Bb; Wed, 21 Jul 2004 01:36:29 -0400 Received: from [218.12.34.234] (helo=ietf.org) by mx2.foretec.com with smtp (Exim 4.24) id 1Bn9ll-0000SI-FS; Wed, 21 Jul 2004 01:36:04 -0400 From: "Atualidade Brasileira:" To: dnsext-archive@ietf.org Subject: A esmola, "políticamente incorreta"? User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.4.1) Gecko/20020314 Netscape6/6.2.2 X-Accept-Language: en-us MIME-Version: 1.0 Content-Type: text/html Message-Id: Date: Wed, 21 Jul 2004 01:36:04 -0400 X-Spam-Score: 24.7 (++++++++++++++++++++++++) X-Spam-Flag: YES X-Scan-Signature: bdc523f9a54890b8a30dd6fd53d5d024

EnCastellano - LinkToFreeTranslator

Bom dia, amigos! A esmola, é humilhante ou indigna? Um tema sem dúvida polêmico, abordado por Adolpho Lindenberg. Para enviar sua valiosa opinião, ou simplesmente seu voto eletrônico, veja os links no final. Boa leitura, e bom debate! Atenciosamente, Sergio Lopes, ConstruNews.

Série Temas Patrulhados (9)

Intervencionismo estatal e fermentação revolucionária versus assistência particular e personalizada

Como podemos aceitar que a palavra "esmola" tenha se transformado em algo humilhante, indigno, praticamente excluído do debate em torno da assistência social?, pergunta Lindenberg

Clientelismo e ineficiência

* Os atuais programas governamentais de assistência social são burocráticos, clientelistas, politizados, demagógicos e ineficientes, ao contrário da assistência social cristã que é dignificante, personalizada, afável, caridosa, e, aliás, de acordo com o autêntico espírito brasileiro, afirma Adolpho Lindenberg em recente e "políticamente incorreto" artigo da Série Temas Patrulhados.

Fermentação temperamental agressiva

* O articulista acrescenta que o quadro de um Estado intervencionista e ineficiente se vê agravado pela fermentação revolucionária de agitadores, muitas vezes da "esquerda católica", que criam um clima temperamental de inconformidade agressiva, sempre propondo soluções que significam uma maior intervenção estatal.

Na esmola, duas belas atitudes

* Causa espanto a posição de tantos católicos quando bradam que "o pobre não precisa de esmolas, mas de justiça", constata Lindenberg, que responde: precisa de justiça, sim, mas precisa também de esmolas. Como nós, católicos, podemos aceitar que a palavra "esmola", e com ela a realidade que expressa, tenha se transformado em algo humilhante, indigno, praticamente excluído do debate em torno da assistência social?

Esmola material e esmola moral

* E não existe apenas a esmola material: há a esmola moral, o conselho, o afeto e o amparo dados por puro amor ao próximo, sem nenhuma retribuição e dirigidos tantas vezes a milionários angustiados e abatidos pelos revezes da vida.

Dar e receber esmolas, gestos que participam da vida divina

* A partir da difusão do Evangelho, progressivamente, os miseráveis, abandonados e carentes de toda espécie de bens, foram elevados, na consideração pública, à situação de irmãos d'Aquele que é a razão de nossas vidas e modelo de todas as virtudes. Dar e receber esmolas, tornaram-se, desde então, gestos que participam, num certo sentido, da vida divina.

Texto completo, gratuito, do artigo

* Para receber gratuitamente, por e-mail, o texto completo do artigo "Intervencionismo estatal e fermentação revolucionária versus assistência particular e personalizada" clique no seguinte link:

EsteArtigoCompletoGratuitamente

"Patrulhamento"

* Adolpho Lindenberg é autor do livro "Os católicos e a economia de mercado", em que denuncia uma política com viés esquerdista que censura, marginaliza, "patrulha" ou encobre com um manto de silêncio as opiniões "politicamente incorretas", não afinadas com as ideologias de esquerda.

Links de opinião:

Gostaríamos muito de receber seu voto eletrônico sobre a temática abordada neste e-mail e, se possível, conhecer sua valiosa opinião (seguem 10 opções):

* Lindenberg:Discrepo - OpiniãoReacionária - OpiniãoMuitoReacionáriaMesmo

* Lindenberg:Concordo - OpiniãoDeBomSenso - VerdadePoliticamenteIncorreta

* Lindenberg:EmTermos - OpiniãoUmPoucoReacionária - PrecisariaPensar

* Lindenberg:OutraOpinião (favor acrescentar um comentário, se achar conveniente)

Links gratuitos (e-Book e outros artigos):

EsteArtigoCompletoGratuitamente

E-BookGratuitoBr (em formato Word, com 11 artigos de Lindenberg)

Lindenberg:IntroduçãoGratuitaDoLivro (em formato Word, Introdução do livro "Os católicos e a economia de mercado")

ArtigosAnteriores - ProximosArtigos

Outros links:

Lindenberg:DesejoAdquirirLivro (receberá instruções sobre como adquirir o livro no Brasil)

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From eap-admin@frascone.com Wed Jul 21 08:42:23 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id IAA13557 for ; Wed, 21 Jul 2004 08:42:22 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8F75C21395; Wed, 21 Jul 2004 08:28:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 1834621217; Wed, 21 Jul 2004 08:28:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 367B021172 for ; Wed, 21 Jul 2004 08:27:02 -0400 (EDT) Received: from dns1.tilab.com (dns1.tilab.com [163.162.42.4]) by mail.frascone.com (Postfix) with ESMTP id 871E12020E for ; Wed, 21 Jul 2004 08:27:00 -0400 (EDT) Received: from iowa2k01a.cselt.it ([163.162.242.201]) by dns1.cselt.it (PMDF V6.0-025 #38895) with ESMTP id <0I1700651CIBTO@dns1.cselt.it> for eap@frascone.com; Wed, 21 Jul 2004 14:39:47 +0200 (MEST) Received: from EXC01C.cselt.it ([163.162.4.217]) by iowa2k01a.cselt.it with Microsoft SMTPSVC(6.0.3790.0); Wed, 21 Jul 2004 14:42:42 +0200 Received: from EXC2K01B.cselt.it ([163.162.4.97]) by EXC01C.cselt.it with Microsoft SMTPSVC(6.0.3790.0); Wed, 21 Jul 2004 14:41:13 +0200 From: Giaretta Gerardo To: mip6@ietf.org, eap@frascone.com Message-id: <625BE97BF4795E43970345790166B9BC01E2465D@EXC2K01B.cselt.it> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.3790.0 Content-type: multipart/alternative; boundary="----_=_NextPart_001_01C46F20.018AB762" Content-transfer-encoding: 7bit Importance: normal Priority: normal Thread-Topic: Mobile IPv6 bootstrapping based on EAP thread-index: AcRvH5hXsQ2dgwNkTku3bxn9ODYYxA== Content-Class: urn:content-classes:message X-OriginalArrivalTime: 21 Jul 2004 12:41:13.0682 (UTC) FILETIME=[02064B20:01C46F20] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Mobile IPv6 bootstrapping based on EAP Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 21 Jul 2004 14:41:12 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) This is a multi-part message in MIME format. ------_=_NextPart_001_01C46F20.018AB762 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi all,=20 A new version of draft-giaretta-mip6-authorization-eap is available at the following location: http://www.ietf.org/internet-drafts/draft-giaretta-mip6-authorization-ea p-01.txt The draft defines a method for performing Mobile IPv6 bootstrap relying on a AAA infrastructure exploiting the capability of several EAP methods to carry arbitrary parameters.=20 Comments are appreciated. Regards, --Gerardo Gruppo Telecom Italia - Direzione e coordinamento di Telecom Italia = S.p.A. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D CONFIDENTIALITY NOTICE This message and its attachments are addressed solely to the persons above and may contain confidential information. If you have received the message in error, be informed that any use of the content hereof is prohibited. Please return it immediately to the sender and delete the message. Should you have any questions, please send an e_mail to=20 MailAdmin@tilab.com. Thank you =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D ------_=_NextPart_001_01C46F20.018AB762 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Mobile IPv6 bootstrapping based on EAP

Hi all,

A new version of = draft-giaretta-mip6-authorization-eap is available at the following = location:

http://www.ietf.org/internet-drafts/draft-giaretta-mip6-authorizatio= n-eap-01.txt

The draft defines a method for = performing Mobile IPv6 bootstrap relying on a AAA infrastructure = exploiting the capability of several EAP methods to carry arbitrary = parameters.

Comments are appreciated.

Regards,

--Gerardo


Gruppo Telecom Italia - Direzione e coordinamento di Telecom = Italia = S.p.A.

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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above and may contain confidential information. = If you have received
the message in error, be informed that any use = of the content hereof
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MailAdmin@tilab.com. Thank = you
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D ------_=_NextPart_001_01C46F20.018AB762-- _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 21 10:07:23 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA18980 for ; Wed, 21 Jul 2004 10:07:23 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 11A3B21400; Wed, 21 Jul 2004 09:53:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id CD839213FC; Wed, 21 Jul 2004 09:53:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5B528213FC for ; Wed, 21 Jul 2004 09:52:21 -0400 (EDT) Received: from inet-tsb.toshiba.co.jp (inet-tsb.toshiba.co.jp [202.33.96.40]) by mail.frascone.com (Postfix) with ESMTP id 45A68213F5 for ; Wed, 21 Jul 2004 09:52:19 -0400 (EDT) Received: from tsb-wall.toshiba.co.jp ([133.199.160.134]) by inet-tsb.toshiba.co.jp with ESMTP id i6LE6Wlr014466; Wed, 21 Jul 2004 23:06:32 +0900 (JST) Received: (from root@localhost) by tsb-wall.toshiba.co.jp id i6LE6W1v023522; Wed, 21 Jul 2004 23:06:32 +0900 (JST) Received: from tis2 [133.199.160.66] by tsb-wall.toshiba.co.jp with SMTP id ZAA23519 ; Wed, 21 Jul 2004 23:06:32 +0900 Received: from mx.toshiba.co.jp by tis2.tis.toshiba.co.jp id XAA06501; Wed, 21 Jul 2004 23:06:31 +0900 (JST) Received: from tsb-sgw.toshiba.co.jp by toshiba.co.jp id XAA18461; Wed, 21 Jul 2004 23:06:30 +0900 (JST) Received: from tsbpo1.po.toshiba.co.jp by tsb-sgw.toshiba.co.jp with ESMTP id i6LE6UFi009699; Wed, 21 Jul 2004 23:06:30 +0900 (JST) Received: from steelhead ([172.30.24.114]) by tsbpo1.po.toshiba.co.jp (Sun Internet Mail Server sims.3.5.1999.01.13.19.49.p4) with ESMTP id <0I17003ITGIR7L@tsbpo1.po.toshiba.co.jp>; Wed, 21 Jul 2004 23:06:29 +0900 (JST) Received: from ohba by steelhead with local (Exim 3.36 #1 (Debian)) id 1BnHjK-0002vo-00; Wed, 21 Jul 2004 07:05:58 -0700 From: Yoshihiro Ohba To: pana@ietf.org, eap@frascone.com Message-id: <20040721140558.GI1086@steelhead> MIME-version: 1.0 Content-type: text/plain; charset=iso-2022-jp Content-disposition: inline Mail-Followup-To: pana@ietf.org, eap@frascone.com User-Agent: Mutt/1.5.6+20040523i X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] PANA IPv6 implementation available Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 21 Jul 2004 10:05:58 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) http://www.opendiameter.org and http://www.sourceforge.net/projects/diameter have more details. Also, if you are implementing PANA and interested in PANA interoperability testing, please send email to me. Yoshihiro Ohba (Open Diameter Project) ----- Forwarded message from Victor Fajardo ----- From: Victor Fajardo Subject: [Diameter-developers] Open Diameter Interim Release Version 1.0.7-a is now available To: diameter-developers@lists.sourceforge.net Reply-to: vfajardo@msbx.net Importance: Normal Sensitivity: Normal X-VirusChecked: Checked X-Env-Sender: diameter-developers-admin@lists.sourceforge.net X-Msg-Ref: server-2.tower-75.messagelabs.com!1090252954!2771397 X-StarScan-Version: 5.2.10; banners=-,-,- X-Originating-IP: [66.35.250.206] X-SpamReason: No, hits=0.0 required=7.0 tests= X-Virus-Scanned: by Clam AntiVirus X-Spam-Score: 0.0 (/) X-Spam-Report: Spam Filtering performed by sourceforge.net. See http://spamassassin.org/tag/ for more details. Report problems to http://sf.net/tracker/?func=add&group_id=1&atid=200001 0.0 SF_CHICKENPOX_SLASH BODY: Text interparsed with / 0.0 SF_CHICKENPOX_MINUS BODY: Text interparsed with - 0.0 SF_CHICKENPOX_PERIOD BODY: Text interparsed with . 0.0 SF_CHICKENPOX_UNDERSCORE BODY: Text interparsed with _ X-BeenThere: diameter-developers@lists.sourceforge.net X-Mailman-Version: 2.0.9-sf.net List-Unsubscribe: , List-Id: Diameter Developers Mailing List List-Post: List-Help: List-Subscribe: , List-Archive: X-Original-Date: Mon, 19 Jul 2004 15:59:47 +0000 Release Version 1.0.7-a Release Date : 07/19/2004 This release is an interim release for version 1.0.7. It is in support of incremental features that are ready for distribution and also covers critical fixes from the last major release. 1. PANA IPv6 Support PANA now supports IPv6 for FreeBSD and Linux platforms only. PANA/IPv6 has been tested with FreeBSD 4.9 and above. For linux platforms, the kernel must support IPv6 (vanilla kernel or usagi) and must have a glibc version that supports IPv6 socket interface extensions (RFC 3493) and advanced socket API (RFC 2292) including BSD functions, i.e. getifaddrs(3). To compile libpana with IPv6, the ACE package must also be compiled with IPv6 support (enable ACE_HAS_IPV6 macro in config.h). The ACE-INSTALL document provides more details on enabling IPv6 support. The PANA library relies on this macro as well. There is also a sample IPv6 config file present in pana/config directory for both the Pac test code (pac6.xml) and Paa test code (paa6.xml). 2. Bug Fixes The following are major fixes introduced in this iterim release: a. Fixed a race condition in the PANA statmachine event function. b. Added race condition protection in the diameter state machine protection. c. Fixes to diameter header vendor specific flag checks in libdiamparser. d. Fixes to diameter base protocol message initialization routines. 3. Distribution Fixes for Release 1.0.7 The 1.0.7 distribution file (opendiameter-1.0.7.tar.gz) should have included EAP-TLS library but it does not. This interim releases fixes this issue and includes sources for EAP-TLS library. ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_idG21&alloc_id040&op=click _______________________________________________ Diameter-developers mailing list Diameter-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/diameter-developers ----- End forwarded message ----- _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 21 11:06:25 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA25012 for ; Wed, 21 Jul 2004 11:06:24 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 33BCE21427; Wed, 21 Jul 2004 10:52:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8C83D21438; Wed, 21 Jul 2004 10:52:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 132132142C for ; Wed, 21 Jul 2004 10:51:27 -0400 (EDT) Received: from mail-ic.fth.sbs.de (mail-ic.fth.sbs.de [194.138.39.45]) by mail.frascone.com (Postfix) with ESMTP id ABE7221427 for ; Wed, 21 Jul 2004 10:51:24 -0400 (EDT) Received: from bchk006a.bch.siemens.de ([149.246.105.43]) by mail-ic.fth.sbs.de (8.11.7/8.11.7) with ESMTP id i6LF5G621212; Wed, 21 Jul 2004 17:05:16 +0200 (MEST) Received: by bchk006a.bch.siemens.de with Internet Mail Service (5.5.2657.72) id ; Wed, 21 Jul 2004 17:05:35 +0200 Message-ID: <758E9863A7B26945B174BD445B1CA15C8DA95D@bchk999a.bch.siemens.de> From: Berg Stefan ICM Bocholt To: jari.arkko@piuha.net Cc: eap@frascone.com Subject: [eap] comments on draft-groeting-eap-netselection-results-00.txt MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 21 Jul 2004 17:05:35 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Hi Jari! Thank you, for your comments! See inline... > Wolfgang & co, > > Thank you for submitting this draft! I think its a very useful > approach that you have run experiments using a real implementation and > provided us with some feedback based on that. This is very much > needed. > > Here are a few comments from my first reading: > > Technical: > > > EAP is a generic container protocol that can - in theory > - carry any > information desired by the network (as long as both > sides of the > information exchange understand the information that > they are > receiving). It is an obvious choice for Layer 2 > information exchange > about network capabilities since it is highly > likely that EAP will be > > implemented in both, the end host and the network. However, when EAP > > I disagree about EAP being an obvious choice for this purpose. I think > we have consensus that we can use it in a very limited fashion (a la > Farid's draft), but EAP's lack of multicast support, request-response > model, lack of fragmentation support, and small MTU size makes it a > cumbersome protocol for a general purpose information exchange. But > you already note much of this later in the text. Maybe s/an obvious > choice/one possible alternative/. OK. I agree that EAP, because of its characteristics and features, is not "the best" choice for exchanging this kind of information. But I consider EAP as one possible alternative, which has quite good chances to prevail, because it is already wide spread used in many exisiting implemetations. Of course other/new protocols may be better suited. As Bernard already noted, we also have to look at the current IEEE link layer activities, especially the WIEN SG. > > > is used in this fashion (i.e., beyond its original > intention) it is > important to note that there are possible impacts > on security, > scalability and the EAP state machine. > > Indeed. > > > Importance: Mandatory for authentication purpose > > When discovered: Pre-authentication > > How dynamic: Inter-attach > > This type of classification seems quite useful. I'll > adopt some of the concept to draft-ietf-eap-netsel-problem > in fact, if you don't mind... We don't mind... > > > The AN will receive information from the home network about what > the > user is authorized to access and for how long. If this > information > can be transferred to the MT then it can be used to > make informed > decisions e.g. about interface selection - there is > no point > choosing to use an interface if it is about to become > idle because > > the time for which it is authorized is nearly finished. It > would > also be useful for feedback to the user. As this > information might > belong to a particular user, it needs > further investigation on how to > secure such kind of > information. A plain authorization information > > advertisement seems rather difficult to realize. > > > Importance: Optional > > When discovered: Pre-authentication > > How dynamic: Duration of Session > > > > The functionality required to obtain this information is > quite > complex and does not yet exist so this information > is considered to > be optional at the moment. > > Indeed. In fact, without a more specific example on what such > authorization would tell us, I'm not sure we even need to consider > this part at all. All that I can think of is things like "Am I going > to get a public IP address?" or "Do I get access from here or is it > necessary to do a manual web-page login first?". Such questions will > be answered later by a trial-and-error process, but it would be much > better if the mobile node could choose the optimal access network from > the start. You're right! We have to think this over... > > In [I-D.adrangi-eap-network-discovery] the following syntax is > > proposed: network-info = attribute "=" value. for just > transmitting > > the names of the mediating networks, this syntax is useful. When > > offering e.g. six attributes about three mediating > networks there > > occurs a problem with the space available in the EAP packet. A > > solution to that problem is to send the network information in a > > defined order, seperated with a defined delimiter. Figure 2 is a > > possible way to transmit information about: the name of > the mediating > > network, the cost of the mediating network, roaming agreements, > > quality of service , middlebox information and authorisation > > information (in this exemplary for three mediating networks): > > > > _______________________ > > | | | | > > | MN1 | MN2 | MN3 | MN: Mediating Network > > | | | | > > |-------|-------|-------| > > | | | | > > | C1 | C2 | C3 | C: Cost > > | | | | > > |-------|-------|-------| > > | | | | > > | RA1 | RA2 | RA3 | RA: Roaming Agreements > > | | | | > > |-------|-------|-------| > > | | | | > > | QS1 | QS2 | QS3 | QS: Quality of Service > > | | | | > > |-------|-------|-------| > > | | | | > > | MI1 | MI2 | MI3 | MI: Middlebox > Information > > | | | | > > |-------|-------|-------| > > | | | | > > | AI1 | AI2 | AI3 | AI: > Authorisation Information > > | | | | > > |-------|-------|-------| > > | | | | > > | PP1 | PP2 | PP3 | PP: Privacy Policy > > | | | | > > ----------------------- > > > > Figure 2: Matrix for Network Information > > > > Converted into a string this data looks like (used "," > as delimeter > > between attributes and ";" as delimeter between values): > > network-information=MN1;MN2;MN3,Cost1;Cost2;Cost3, > > RA1;RA2;RA3,QS1;QS2;QS3,MI1;MI2;MI3,AI1;AI2;AI3,PP1;PP2;PP3 > > Please don't use the EAP Identity Request packets for > a transmission of all this data. Farid's draft very clearly states > that you can transfer intermediate network names (roaming > information), but nothing else. As you point out above, the space runs > out very fast. I see the point, but with our test implementation we haven't reached the limitations yet. Of course for larger installations the limitations have to be taken into consideration. > > > One thing missing in this behaviour model is the reaction on an > > Identity-Response which arrives the second time - without having > > changed anything in username attribute. For this reason > a counter > > has to be inserted into FreeRADIUS-code which makes it > possible to > > check for packets who are arriving more than one time. > As proposed > > in [I-D.adrangi-eap-network-discovery] the AAA-Server > has to handle > > these packets based on the local routing policy. In fact the > > AAA-Server SHOULD discard these packets and send an EAP Failure > > packet which stops the authentication process. > > This seems like a useful thing to add to Farid's draft. > If there simply is no routing entry for the requested network, no > decoration, and you have already sent one EAP identity request with > the mediating network info -- all you can do is fail. As Bernard proposed a notification for the client and then an EAP-failure would be good. > > > If it decides not to continue with authenticating process, the > > supplicant SHOULD send an EAP logoff packet. Else an > > Identity-Response has to be sent, which includes a decorated-nai as > > username. Part of this decorated-nai is the chosen mediating > > network. > > Note that the decorations must always be optional, even if there was > an advertisement for mediating networks. Otherwise current clients > will fail to connect. So jari@arkko.com should work without > decorations, as long as there is a routing entry in the AAA chain for > arkko.com. OK. Of course you're right. > > > 1 byte 2 bytes 1 byte > > |------- |----------------|------- | > > | Type | Length | NoM | > > |--------|----------------|--------| > > | Data | > > |----------------------------------| > > > > Figure 4: Design of a Netinfo-Packet > > Can you clarify which protocol layer you intend > to carry this in? We just tried to use a standard packet header, so that the netinfo-packet is suitable for various protocols. > > > In fact, most administrators of WLANs do not change > > the default SSID (see for example [Pri04] for a study about WLAN > > usage in London where approximately 40% of the access points are > > running their default SSID.) Such an approach makes the phone book > > (see [RFC3017]) approach (as an out-of-band mechanism to associate a > > particular service to an identifier) difficult to deploy. > > This is an interesting observation! I'll include this > too in draft-ietf-eap-netsel-problem-01... > > > As a summary, to provide a short-term solution the authors suggest > to > provide a mechanism to exchange information about the offered > and the > desired service between the end host and the access > network. > Subsequently, this information has to be repeated both in > the EAP > method and the AAA infrastructure to give the user > and the home > network the ability to detect fraud. This > proposal has not been > verified by the current > implementation and hence needs further > assessment. > > I agree with this general approach. (But I'd like to keep the > information down to the very basic data, i.e., mediating networks, and > not include e.g. QoS.) Our intention was to verify, whether the proposed solution is working or not, and to start a discussion, whether additional information is useful and how it could be provided. > > Editorial: > > - s/that the algorithmus comes to a decision if to > proceed authenticating/that the algorithm comes to > decision on whether to proceed with the authentication/ > > - s/exemplary/example/ > > --Jari > OK! Thank you! Will be modified... Regards, Stefan _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 21 11:09:30 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA25215 for ; Wed, 21 Jul 2004 11:09:28 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id EF53621444; Wed, 21 Jul 2004 10:54:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8BD0121439; Wed, 21 Jul 2004 10:54:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id DB29D21439 for ; Wed, 21 Jul 2004 10:53:54 -0400 (EDT) Received: from mail-ic.fth.sbs.de (mail-ic.fth.sbs.de [194.138.39.45]) by mail.frascone.com (Postfix) with ESMTP id 810D720943 for ; Wed, 21 Jul 2004 10:53:52 -0400 (EDT) Received: from bchk006a.bch.siemens.de ([149.246.105.43]) by mail-ic.fth.sbs.de (8.11.7/8.11.7) with ESMTP id i6LF7a621556; Wed, 21 Jul 2004 17:07:37 +0200 (MEST) Received: by bchk006a.bch.siemens.de with Internet Mail Service (5.5.2657.72) id ; Wed, 21 Jul 2004 17:07:56 +0200 Message-ID: <758E9863A7B26945B174BD445B1CA15C8DA95F@bchk999a.bch.siemens.de> From: Berg Stefan ICM Bocholt To: Bernard Aboba Cc: eap@frascone.com Subject: [eap] Re: comments on draft-groeting-eap-netselection-results-00. txt MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 21 Jul 2004 17:07:56 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Hi Bernard, Thank you, for your comments! I just added some remarks inline... Stefan > Jari Arkko noted: > > "I disagree about EAP being an obvious choice for this purpose. I > think we have consensus that we can use it in a very limited > fashion..." > > Yes, the discussion so far in 802.11 WIEN does not appear to suggest > that EAP is the obvious choice either, particularly if the wider > problem statement is taken into account (service discovery and > selection). We're looking for solutions that work in various environments with different technologies. Of course service discovery and selection is best done at the lower layers. As a result we're quite interested in what happens in 802.11 WIEN (maybe we should have made an reference in the document), but WIEN will work on an IEEE 802.11 specific solution. The scope of 802.21 is much more general, but certainly will not cover all possible technologies. In our view EAP may not be "the best", but at least an alternative solution for service discovery and selection at a higher layer and a good starting point for further discussions. > > > is used in this fashion (i.e., beyond its original > intention) it is > important to note that there are possible impacts > on security, > scalability and the EAP state machine. > > Actually I think there may be impacts even when used as intended. > > > Please don't use the EAP Identity Request packets for > > a transmission of all this data. Farid's draft very clearly > > states that you can transfer intermediate network names > (roaming > information), but nothing else. As you point out > above, the space > runs out very fast. > > Given the limitations of the EAP MTU size, and the inherent > inefficiency of the described syntax, it's quite questionable whether > these kind of extensions make any sense. And if they are really > needed (which I can believe), then this argues for going another route > from the start, such as delivering the information at the lower layer. > > Given that a straw poll at the IEEE 802.11 WIEN group indicated strong > support for standardization within 802.11, I suspect that we'll have > discussions on lower layer alternatives taking place fairly soon. > Given this, the argument for publishing the EAP Network Discovery > document rests on its general utility (providing hints for selection > of the right NAI for the EAP-Response), rather than its > suitability as a substrate for further extensions. > > > check for packets who are arriving more than one time. > As proposed > > in [I-D.adrangi-eap-network-discovery] the AAA-Server > has to handle > > these packets based on the local routing policy. In fact the > > AAA-Server SHOULD discard these packets and send an EAP Failure > > packet which stops the authentication process. > > Actually, I'd argue for a Notification so that the client can figure > out what is going on, and *then* an EAP Failure. Good idea! I think, this really makes sense. > > > Can you clarify which protocol layer you intend > > to carry this in? > > Please keep in mind that there is chartered work within 802.21 as well > as 802.1af on Network Discovery, as well as the discussion going on in > WIEN. So there are lots of place to put this :) Right! We always tried to be as generic as possible, so the netinfo-packet could also be used with other protocols. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 21 12:57:23 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA03368 for ; Wed, 21 Jul 2004 12:57:23 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5E1961FCD3; Wed, 21 Jul 2004 12:43:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 952A01FD40; Wed, 21 Jul 2004 12:43:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2D3C31FD40 for ; Wed, 21 Jul 2004 12:42:25 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 13CE51FCD3 for ; Wed, 21 Jul 2004 12:42:23 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6LGrtl15897; Wed, 21 Jul 2004 09:53:55 -0700 From: Bernard Aboba To: Berg Stefan ICM Bocholt Cc: eap@frascone.com Subject: Re: [eap] Re: comments on draft-groeting-eap-netselection-results-00. txt In-Reply-To: <758E9863A7B26945B174BD445B1CA15C8DA95F@bchk999a.bch.siemens.de> Message-ID: References: <758E9863A7B26945B174BD445B1CA15C8DA95F@bchk999a.bch.siemens.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 21 Jul 2004 09:53:55 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > The scope of 802.21 is much more general, but certainly will not cover > all possible technologies. As I understand it, the intent is for the 802.21 work to apply to a range of IEEE 802 wireless technologies. Are there other media of interest? Which ones? > Actually, I'd argue for a Notification so that the client can figure > out what is going on, and *then* an EAP Failure. > > Good idea! I think, this really makes sense. This will might help the user to figure out what is going on. Or at least there will be something in the log to help the admin. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 21 16:15:24 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id QAA21980 for ; Wed, 21 Jul 2004 16:15:23 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 620432051E; Wed, 21 Jul 2004 16:01:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id F17BF2048B; Wed, 21 Jul 2004 16:01:03 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 02B44204BE for ; Wed, 21 Jul 2004 16:00:37 -0400 (EDT) Received: from iserver.sj.symbol.com (iserver.sj.symbol.com [63.145.233.51]) by mail.frascone.com (Postfix) with ESMTP id 3198F1FE53 for ; Wed, 21 Jul 2004 16:00:35 -0400 (EDT) Received: from RUNABOUT (gwianameserver [157.235.95.252]) by iserver.sj.symbol.com (8.12.8/8.12.8) with ESMTP id i6LK1qfV029414 for ; Wed, 21 Jul 2004 13:01:52 -0700 (PDT) Received: from SJ-DOM-MTA by RUNABOUT with Novell_GroupWise; Wed, 21 Jul 2004 13:14:48 -0700 Message-Id: X-Mailer: Novell GroupWise Internet Agent 6.0.4 From: "Clint Chaplin" To: , Cc: Subject: Re: [eap] Re: comments on draft-groeting-eap-netselection-results-00.txt Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 21 Jul 2004 13:14:35 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable 802.21 is supposed to solve the heterogeneous network handoff problem. As = an example, handing off from a wire network to a wireless network (you = just unplugged your ethernet cable to go to a conference room) or vice = versa, or from 802.11 to 3GPP. Clint (JOATMON) Chaplin Wireless Security Advisor Wireless Standards Lead >>> Bernard Aboba 7/21/04 09:53:55 >>> > The scope of 802.21 is much more general, but certainly will not cover > all possible technologies. As I understand it, the intent is for the 802.21 work to apply to a range of IEEE 802 wireless technologies. Are there other media of interest? Which ones? > Actually, I'd argue for a Notification so that the client can figure > out what is going on, and *then* an EAP Failure. > > Good idea! I think, this really makes sense. This will might help the user to figure out what is going on. Or at least there will be something in the log to help the admin. _______________________________________________ eap mailing list eap@frascone.com=20 http://mail.frascone.com/mailman/listinfo/eap=20 ________________________________________________________________________ This email has been scanned for computer viruses. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 21 17:45:25 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id RAA08719 for ; Wed, 21 Jul 2004 17:45:23 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D6D88205DD; Wed, 21 Jul 2004 17:31:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B836920585; Wed, 21 Jul 2004 17:31:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E64BD20585 for ; Wed, 21 Jul 2004 17:31:00 -0400 (EDT) Received: from redmailwall5.attws.com (redmailwall5.attws.com [67.98.173.56]) by mail.frascone.com (Postfix) with ESMTP id DC5C22051E for ; Wed, 21 Jul 2004 17:30:58 -0400 (EDT) Received: from viruswall2.entp.attws.com ([135.214.241.196]) by redmailwall5.attws.com (8.12.10/8.12.6) with ESMTP id i6LLjCql003911; Wed, 21 Jul 2004 14:45:13 -0700 (PDT) Received: from scentmail.entp.attws.com (localhost [127.0.0.1]) by viruswall2.entp.attws.com (8.12.10/8.12.10) with ESMTP id i6LLjCeZ029439; Wed, 21 Jul 2004 14:45:12 -0700 (PDT) Received: from WA-MSGBH02-BTH.wireless.attws.com (WA-MSGBH02-BTH.wireless.attws.com [135.214.26.242]) by scentmail.entp.attws.com (8.8.8p2+Sun/8.8.8) with ESMTP id OAA08928; Wed, 21 Jul 2004 14:45:11 -0700 (PDT) Received: from WA-MSG10-BTH.wireless.attws.com ([135.214.41.74]) by WA-MSGBH02-BTH.wireless.attws.com with Microsoft SMTPSVC(5.0.2195.5329); Wed, 21 Jul 2004 14:45:11 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C46F6B.FF81C7D1" Subject: Re: [eap] Re: comments on draft-groeting-eap-netselection-results-00. txt Message-ID: Thread-Topic: Re: [eap] Re: comments on draft-groeting-eap-netselection-results-00. txt Thread-Index: AcRvbAAUBTj5rWdaSY2U74mAbja39w== From: "Bari, Farooq" To: Cc: , "Tschofenig Hannes" , "Adrangi, Farid" X-OriginalArrivalTime: 21 Jul 2004 21:45:11.0541 (UTC) FILETIME=[FFB45A50:01C46F6B] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 21 Jul 2004 14:45:11 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) This is a multi-part message in MIME format. ------_=_NextPart_001_01C46F6B.FF81C7D1 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Hannes, Wolfgang et al, =20 This is an interesting draft. I had a somewhat different use model than what your draft seems to imply. Here is what my use case scenario looks like =20 1) User selects the serving network based on roaming agreements 2) The serving network authenticating the user (i.e. its AAA proxy/server), as part of AAA message flows informs the home network (i.e. subscriber's home AAA server) about the serving network capabilities (and maybe other information e.g. hotspot location). 3) Based on the information provided by the serving network in AAA messages to the home network, the home network authenticates the user and then authorizes him for certain home services that can work on the serving network (e.g. VoIP, streaming etc.) that the user has subscribed to. The home network can do a bunch of other things (e.g. intelligent billing) as well with this extra bit of information from the serving network's AAA proxy/server. =20 In other words, the communication of this type of information is between serving and home network AAA entities after the serving network has been selected by the Wireless Client. We do have a couple of drafts in RADEXT which deal with bandwidth and location attributes. I believe they will be able to solve the use case scenario I described where the communication is between RADIUS/DIAMETER entities and Wireless Client is not involved in them (i.e. no EAP communication although it will be part of AAA message flows). BTW thanks for the implementation of the draft. We will have any errors identified corrected in the next version. =20 BR, =20 Farooq ------_=_NextPart_001_01C46F6B.FF81C7D1 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi Hannes, Wolfgang et = al,

 

This is an interesting draft. I = had a somewhat different use model than what your draft seems to imply. Here is what my = use case scenario looks like

 

1)       User selects = the serving network based on roaming agreements

2)       The serving = network authenticating the user (i.e. its AAA proxy/server), as part of AAA message flows = informs the home network (i.e. subscriber’s home AAA server) about the serving network capabilities (and maybe other information e.g. hotspot = location).

3)       Based on the = information provided by the serving network in AAA messages to the home network, the = home network authenticates the user and then authorizes him for certain home = services that can work on the serving network (e.g. VoIP, streaming etc.) that = the user has subscribed to. The home network can do a bunch of other things (e.g. = intelligent billing) as well with this extra bit of information from the serving = network’s AAA proxy/server.

 

In other words, the communication = of this type of information is between serving and home network AAA entities = after the serving network has been selected by the Wireless Client. We do have a couple of = drafts in RADEXT which deal with bandwidth and location attributes. I believe = they will be able to solve the use case scenario I described where the = communication is between RADIUS/DIAMETER entities and Wireless Client is not involved = in them (i.e. no EAP communication although it will be part of AAA message = flows). BTW thanks for the implementation of the draft. We will have any errors = identified corrected in the next version.

 

BR,

 

Farooq

=00 ------_=_NextPart_001_01C46F6B.FF81C7D1-- _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Thu Jul 22 14:51:22 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA14907 for ; Thu, 22 Jul 2004 14:51:21 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6DA1521511; Thu, 22 Jul 2004 14:35:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 276B521514; Thu, 22 Jul 2004 14:35:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id EBC3221513 for ; Thu, 22 Jul 2004 14:34:18 -0400 (EDT) Received: from struggle.mr.itd.umich.edu (struggle.mr.itd.umich.edu [141.211.14.79]) by mail.frascone.com (Postfix) with ESMTP id 420DF21511 for ; Thu, 22 Jul 2004 14:34:17 -0400 (EDT) Received: from dhcp60-181.merit.edu (dhcp60-181.merit.edu [198.108.60.181]) by struggle.mr.itd.umich.edu (smtp) with ESMTP id i6MImGS2010529; Thu, 22 Jul 2004 14:48:16 -0400 From: John Vollbrecht To: Nick Petroni , Florent Bersani Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 Message-ID: <2147483647.1090507696@dhcp60-181.merit.edu> In-Reply-To: References: X-Mailer: Mulberry/3.0.3 (Mac OS X) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 22 Jul 2004 14:48:16 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit looks good to me as well - John --On Friday, July 16, 2004 12:22 PM -0400 Nick Petroni wrote: > Looks good to me. Thanks for all of the comments, suggestions, and text. > > Best, > nick > > Nick L. Petroni, Jr. > Graduate Student, Computer Science > Maryland Information Systems Security Lab > University of Maryland > http://www.cs.umd.edu/~npetroni > > On Fri, 16 Jul 2004, Florent Bersani wrote: > > > Nick, all > > > > Here is some proposed text: > > > > Add to the definition of Policy.getNextMethod (section 5.4 page 20 of > > the .pdf): > > "Policy.getNextMethod MUST comply to RFC 3748 that forbids, in its > > Section 2.1, the use of sequences of authentication methods within an > > EAP conversation. Hence, if an authentication method has already been > > executed within an EAP dialog, Policy.getNextMethod MUST NOT propose > > another authentication method within the same EAP dialog" > > > > What do you think of it? > > > > Florent > > > > Nick Petroni wrote: > > > > > Florent and all, > > > > > > As Monday 7/19 is the cut-off for document submission, I would like > > > to ask for help in resolving as much of the remaining issues as > > > possible in the state machine document. Here is a list of necessary > > > changes as I see them for Issue 248. Please let me know how these > > > look in principle and contribute text if possible. I also will > > > attempt to contribute text over the next couple of days. > > > > > > Thanks, > > > nick > > > > > > > > > > > > Comment #9 - Technical > > > Request text amendments for policy functions to clarify that > > > multiple authentication methods are not expected or propose > > > alternate solution. > > > > > > > > Florent Bersani wrote: > > > > > Comment #9 - Technical > > > > > > Apparently Figure 4 (EAP Standalone Authenticator State Machine) > > > leaves the door open to a sequence of EAP authentication methods > > > (which is explicitly forbidden by RFC 3748 section 2.1 "However, the > > > peer and authenticator MUST utilize only one authentication method > > > (Type 4 or greater) within an EAP conversation"). This behavior may be > > > prevented thanks to Policy.getDecision or PolicygetNextMethod... but I > > > do not find this is exactly a matter of policy and at least, this > > > should be pointed out (that the policy MUST forbid this behavior). > > > > > > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Thu Jul 22 14:53:10 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA15007 for ; Thu, 22 Jul 2004 14:53:09 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 9DD4E2184F; Thu, 22 Jul 2004 14:38:11 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5244121517; Thu, 22 Jul 2004 14:38:06 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id AFA9721516; Thu, 22 Jul 2004 14:37:54 -0400 (EDT) Received: from struggle.mr.itd.umich.edu (struggle.mr.itd.umich.edu [141.211.14.79]) by mail.frascone.com (Postfix) with ESMTP id 00A7221515; Thu, 22 Jul 2004 14:37:53 -0400 (EDT) Received: from dhcp60-181.merit.edu (dhcp60-181.merit.edu [198.108.60.181]) by struggle.mr.itd.umich.edu (smtp) with ESMTP id i6MIq8S2011509; Thu, 22 Jul 2004 14:52:08 -0400 From: John Vollbrecht To: Nick Petroni , eap-admin@frascone.com, Florent Bersani Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 248] Comments on EAP state machine v4 Message-ID: <2147483647.1090507928@dhcp60-181.merit.edu> In-Reply-To: References: X-Mailer: Mulberry/3.0.3 (Mac OS X) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 22 Jul 2004 14:52:08 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit --On Friday, July 16, 2004 12:22 PM -0400 Nick Petroni wrote: . . . > > As a fall-back solution, I would recommend inserting something like the > > following text advising that COND_SUCC may be dangerous: > > > > "In case the peer reaches the decision COND_SUCC, please note that the > > peer is vulnerable to an active attacker that may easily lead him to > > believe that the authenticator has reached any decision the attacker > > chooses. In situations where security is a concern, it is RECOMMENDED to > > avoid using the value COND_SUCC of the decision variable" > This would be a good recommendation to method writers I think, but I am > not sure a general claim about setting that variable alone is enough. We > could add some guidelines for method authors in the Implementation > Considerations section or perhaps better somewhere else? IMHO, the > middle of the SM description is not the place to get into this. > I also think this would be a good recommendation, but not in the middle of the state machine. Perhaps in a EAP methods document would be better. > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Thu Jul 22 17:20:25 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id RAA06096 for ; Thu, 22 Jul 2004 17:20:24 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8602F21868; Thu, 22 Jul 2004 17:06:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8D7FE20BF4; Thu, 22 Jul 2004 17:06:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id DBE7120BF4 for ; Thu, 22 Jul 2004 17:05:52 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id 3D5E120BE9 for ; Thu, 22 Jul 2004 17:05:51 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id E0DC08983F for ; Fri, 23 Jul 2004 00:20:06 +0300 (EEST) Message-ID: <41002E4B.3070104@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "eap@frascone.com" References: <200407221933.PAA19089@ietf.org> In-Reply-To: <200407221933.PAA19089@ietf.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Fwd: I-D ACTION:draft-tschofenig-eap-ikev2-04.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 23 Jul 2004 00:14:51 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Internet-Drafts@ietf.org wrote: > A New Internet-Draft is available from the on-line Internet-Drafts directories. > > > Title : EAP IKEv2 Method (EAP-IKEv2) > Author(s) : H. Tschofenig, et al. > Filename : draft-tschofenig-eap-ikev2-04.txt > Pages : 28 > Date : 2004-7-22 > > EAP-IKEv2 is an EAP method which reuses the cryptography and the > payloads of IKEv2, creating a flexible EAP method that supports > both symmetric and asymmetric authentication, as well as a > combination of both. This EAP method offers the security benefits > of IKEv2 authentication and key agreement without the goal of > establishing IPsec security associations. > > A URL for this Internet-Draft is: > http://www.ietf.org/internet-drafts/draft-tschofenig-eap-ikev2-04.txt _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From mwmrnicvtmkuoqtz@houston.rr.com Thu Jul 22 18:02:36 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id SAA13317; Thu, 22 Jul 2004 18:02:36 -0400 (EDT) Received: from c-24-130-238-226.we.client2.attbi.com ([24.130.238.226]) by ietf-mx.ietf.org with smtp (Exim 4.33) id 1Bnlem-00067j-0h; Thu, 22 Jul 2004 18:03:19 -0400 X-Message-Info: 7843Xs416115FELLwumaGQRERzgci+730253 Received: from baiwm0.tg.mwmrnicvtmkuoqtz@houston.rr.com ([215.191.148.184]) by azudy646-usp.24.130.238.226 with Microsoft SMTPSVC(5.0.2195.6824); Thu, 22 Jul 2004 14:56:51 -0700 Message-ID: <2647060124769$890V$87626@on.net> Conversion-With-Loss: Yes Sensitivity: 1 Expiry-Date: Never Xref: mxzgiryyolitmdlanwlx Reply-To: "Branden Adair" From: "Branden Adair" To: rmt-request@ietf.org Cc: simple@ietf.org, eap-archive@ietf.org, r-wg-admin@ietf.org, ietf-123-outbound.02@ietf.org, rddp-web-archive@ietf.org, cfrg-request@ietf.org, sg@ietf.org, megaco-admin@ietf.org Subject: Notice: We owe you $825611 Date: Fri, 23 Jul 2004 02:55:51 +0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--41188917064196853889" X-Spam-Score: 8.8 (++++++++) X-Spam-Flag: YES X-Scan-Signature: 93238566e09e6e262849b4f805833007 ----41188917064196853889 Content-Type: text/html; charset="iso-1561-0" Content-Transfer-Encoding: 7Bit Hello,

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not interested ----41188917064196853889-- From eap-admin@frascone.com Fri Jul 23 08:40:27 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id IAA18128 for ; Fri, 23 Jul 2004 08:40:26 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8199C1FED9; Fri, 23 Jul 2004 08:26:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 22752202BD; Fri, 23 Jul 2004 08:26:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 75B37202BD for ; Fri, 23 Jul 2004 08:25:21 -0400 (EDT) Received: from mail-fe-02 (unknown [200.45.191.180]) by mail.frascone.com (Postfix) with ESMTP id 23FD71FED9 for ; Fri, 23 Jul 2004 08:25:19 -0400 (EDT) Received: from mail pickup service by mail-fe-02 with Microsoft SMTPSVC; Fri, 23 Jul 2004 09:39:07 -0300 Received: from qsmtp-mx-04.arnet.com.ar ([200.45.191.167]) by mail-fe-02 with Microsoft SMTPSVC(5.0.2195.6713); Tue, 20 Jul 2004 18:33:32 -0300 Received: (qmail 10324 invoked from network); 20 Jul 2004 21:19:11 -0000 Received: from unknown (HELO megatron.ietf.org) (132.151.6.71) by host191167.arnet.net.ar with SMTP; 20 Jul 2004 21:19:08 -0000 Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1Bn0wM-0004zE-DK; Tue, 20 Jul 2004 16:10:18 -0400 Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1Bn0ai-0007t3-Hy for i-d-announce@megatron.ietf.org; Tue, 20 Jul 2004 15:47:56 -0400 Received: from CNRI.Reston.VA.US (localhost [127.0.0.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA21153; Tue, 20 Jul 2004 15:47:54 -0400 (EDT) Message-Id: <200407201947.PAA21153@ietf.org> Mime-Version: 1.0 Content-Type: Multipart/Mixed; Boundary="NextPart" To: i-d-announce@ietf.org From: Internet-Drafts@ietf.org Cc: eap@frascone.com X-BeenThere: i-d-announce@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: internet-drafts@ietf.org X-OriginalArrivalTime: 20 Jul 2004 21:33:32.0695 (UTC) FILETIME=[34BF2A70:01C46EA1] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] I-D ACTION:draft-ietf-eap-statemachine-04.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 20 Jul 2004 15:47:54 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) --NextPart A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Extensible Authentication Protocol Working Group of the IETF. Title : State Machines for Extensible Authentication Protocol (EAP) Peer and Authenticator Author(s) : J. Vollbrecht, et al. Filename : draft-ietf-eap-statemachine-04.txt,.ps,.pdf Pages : 51 Date : 2004-7-20 This document describes a set of state machines for EAP peer, EAP standalone authenticator (non-pass-through), EAP backend authenticator (for use on Authentication, Authorization and Accounting (AAA) servers), and EAP full authenticator (for both local and pass-through). This set of state machines shows how EAP can be implemented to support deployment in either a peer/authenticator or peer/authenticator/AAA Server environment. The peer and standalone authenticator machines are illustrative of how the EAP protocol defined in [RFC3748] may be implemented. The backend and full/ pass-through authenticators illustrate how EAP/AAA protocol support defined in [RFC3579] may be implemented. Where there are differences [RFC3748]/[RFC3579] are authoritative. The state machines are based on the EAP "Switch" model. This model includes events and actions for the interaction between the EAP Switch and EAP methods. A brief description of the EAP "Switch" model is given in the Introduction section. The State Machine and associated model are informative only. Implementations may achieve the same results using different methods. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-eap-statemachine-04.txt To remove yourself from the I-D Announcement list, send a message to i-d-announce-request@ietf.org with the word unsubscribe in the body of the message. You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce to change your subscription settings. Internet-Drafts are also available by anonymous FTP. Login with the username "anonymous" and a password of your e-mail address. After logging in, type "cd internet-drafts" and then "get draft-ietf-eap-statemachine-04.txt". A list of Internet-Drafts directories can be found in http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt Internet-Drafts can also be obtained by e-mail. Send a message to: mailserv@ietf.org. In the body type: "FILE /internet-drafts/draft-ietf-eap-statemachine-04.txt". NOTE: The mail server at ietf.org can return the document in MIME-encoded form by using the "mpack" utility. To use this feature, insert the command "ENCODING mime" before the "FILE" command. To decode the response(s), you will need "munpack" or a MIME-compliant mail reader. Different MIME-compliant mail readers exhibit different behavior, especially when dealing with "multipart" MIME messages (i.e. documents which have been split up into multiple messages), so check your local documentation on how to manipulate these messages. Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft. --NextPart Content-Type: Multipart/Alternative; Boundary="OtherAccess" --OtherAccess Content-Type: Message/External-body; access-type="mail-server"; server="mailserv@ietf.org" Content-Type: text/plain Content-ID: <2004-7-20155334.I-D@ietf.org> ENCODING mime FILE /internet-drafts/draft-ietf-eap-statemachine-04.txt --OtherAccess Content-Type: Message/External-body; name="draft-ietf-eap-statemachine-04.txt"; site="ftp.ietf.org"; access-type="anon-ftp"; directory="internet-drafts" Content-Type: text/plain Content-ID: <2004-7-20155334.I-D@ietf.org> --OtherAccess-- --NextPart Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline Content-Transfer-Encoding: 7bit _______________________________________________ I-D-Announce mailing list I-D-Announce@ietf.org https://www1.ietf.org/mailman/listinfo/i-d-announce --NextPart-- _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From Adam147625@san.rr.com Fri Jul 23 13:52:09 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id NAA12760; Fri, 23 Jul 2004 13:52:09 -0400 (EDT) Message-Id: <200407231752.NAA12760@ietf.org> Received: from ool-182f05db.dyn.optonline.net ([24.47.5.219]) by ietf-mx.ietf.org with smtp (Exim 4.33) id 1Bo4Cs-0002yF-Oe; Fri, 23 Jul 2004 13:51:44 -0400 Received: from Adam147625@san.rr.com (197.206.229.160) by sb380.yoo.24.47.5.219 with QMQP; Fri, 23 Jul 2004 15:41:45 -0200 X-MIME-Autoconverted: Yes Alternate-Recipient: Allowed Auto-Forwarded: Yes Xref: uttefgcgfovzurknoaxy Reply-To: "Nikki Huber" From: "Nikki Huber" To: bpana@ietf.org Cc: owner-ietf-outbound@ietf.org, entmib-request@ietf.org, xmldsig-archive@ietf.org, rmt-request@ietf.org, simple@ietf.org, eap-archive@ietf.org, r-wg-admin@ietf.org, ietf-123-outbound.02@ietf.org Subject: Payment: $46692 Date: Fri, 23 Jul 2004 23:43:45 +0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--583183966456796563" X-Spam-Score: 9.2 (+++++++++) X-Spam-Flag: YES X-Scan-Signature: 7655788c23eb79e336f5f8ba8bce7906 ----583183966456796563 Content-Type: text/html; charset="iso-5030-3" Content-Transfer-Encoding: 7Bit Hello,

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not interested ----583183966456796563-- From eap-admin@frascone.com Sat Jul 24 04:39:28 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id EAA06377 for ; Sat, 24 Jul 2004 04:39:27 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D7C9E20A97; Sat, 24 Jul 2004 04:25:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 723422167F; Sat, 24 Jul 2004 04:25:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B0A652167F for ; Sat, 24 Jul 2004 04:24:55 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id E501E20A97 for ; Sat, 24 Jul 2004 04:24:53 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id 96F998983E; Sat, 24 Jul 2004 11:39:11 +0300 (EEST) Message-ID: <41021EF0.5090501@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "eap@frascone.com" Cc: Bernard Aboba Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] EAP WG agenda for IETF-60, take three Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 24 Jul 2004 11:33:52 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Here's our latest agenda: EAP WG IETF 60 San Diego, CA Wednesday, August 4, 2004 09:00 - 11:30 Chairs: Bernard Aboba Jari Arkko Preliminaries, 10 minutes ------------------------- Minutes & Bluesheets Agenda Bashing Document Status Base Protocols, 40 minutes -------------------------- EAP State Machine, TBD, 10 minutes Goal: Update on status (at the RFC editor queue, but some late review comments need discussion) http://www.ietf.org/internet-drafts/draft-ietf-eap-statemachine-04.pdf EAP Key Framework Draft, B. Aboba, 30 minutes Goal: Progress work. Discuss issues. Talk about current approach vs. draft-zorn differences. http://www.ietf.org/internet-drafts/draft-ietf-eap-keying-03.txt WLAN Requirements, 5 minutes ---------------------------- EAP Method Requirements for WLAN, B. Aboba, 5 minutes Goal: Update on status, discuss remaining issues if any http://www.ietf.org/internet-drafts/draft-walker-ieee802-req-02.txt Network selection, 25 minutes ----------------------------- EAP Network Selection Problem Statement, J. Arkko, 15 minutes Goal: Is the problem stated clearly, can we move this document forward? http://www.ietf.org/internet-drafts/draft-ietf-eap-netsel-problem-01.txt EAP Network Discovery, F. Adrangi, 10 minutes Goal: Review: Is this document OK from an EAP perspective? http://wwww.ietf.org/internet-drafts/draft-adrangi-eap-network-discovery-01.txt EAP methods, 35 minutes ----------------------- EAP methods publication process, Chairs, 5 minutes Goal: Review the current rules for EAP method publication. Shared-Key EAP methods, F. Bersani, 10 mins Goal: Talk about what shared key EAP methods exist or should exist http://wwww.ietf.org/internet-drafts/draft-bersani-eap-synthesis-sharedkeymethods-00.txt http://wwww.ietf.org/internet-drafts/draft-bersani-eap-psk-02.txt EAP PAX, T. Clancy, 10 mins Goal: Present a new EAP method "PAX", and talk about the authors' desires for IETF work on it. http://www.ietf.org/internet-drafts/draft-clancy-eap-pax-00.txt EAP TTLS, P. Funk, 10 mins Goal: Present a new protocol version of the EAP TTLS method, and talk about the authors' desires for IETF work on it. http://www.ietf.org/internet-drafts/draft-ietf-pppext-eap-ttls-05.txt _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 24 04:54:27 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id EAA07023 for ; Sat, 24 Jul 2004 04:54:27 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B57FC20D3E; Sat, 24 Jul 2004 04:40:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 731992112B; Sat, 24 Jul 2004 04:40:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6FB272112B for ; Sat, 24 Jul 2004 04:39:30 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id D5FCB20D3E for ; Sat, 24 Jul 2004 04:39:28 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id A47588983E; Sat, 24 Jul 2004 11:53:47 +0300 (EEST) Message-ID: <4102225C.30305@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Joseph Salowey Cc: "'Bernard Aboba'" , eap@frascone.com Subject: Re: [eap] Proposed Resolution of Issue 215: Comments on Section 3 References: <00a001c46d4c$52568340$0400000a@amer.cisco.com> In-Reply-To: <00a001c46d4c$52568340$0400000a@amer.cisco.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 24 Jul 2004 11:48:28 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Joseph Salowey wrote: > [Joe] With these definitions the key name length is highly variable. I Yes. > think it would be better to have a constant length identifier for the key. > A length of 128 bits should be sufficient. Perhaps it can be defined as the > SHA-1 hash of the data listed above (make it 160 bits for simplicity). I would be fine with that, except that I wonder if we can agree on the single hash function to use, or if we need to negotiate the hash function somehow. At this point it is not obvious to me that the negotiation can be done given the current protocols. What are your thoughts on this? --Jari _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 24 05:02:01 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id FAA07218 for ; Sat, 24 Jul 2004 05:02:00 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3540621683; Sat, 24 Jul 2004 04:46:11 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8556921689; Sat, 24 Jul 2004 04:46:07 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 1755521687 for ; Sat, 24 Jul 2004 04:45:45 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id 35DF921683 for ; Sat, 24 Jul 2004 04:45:43 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id 2776C8983E; Sat, 24 Jul 2004 12:00:02 +0300 (EEST) Message-ID: <410223D2.10602@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "eap@frascone.com" Subject: Re: [eap] [Issue 252] Query regarding currentId in eap-statemachine-03 References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 24 Jul 2004 11:54:42 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Nick, I agree with your assessment. I think we can reject #252. --Jari Nick Petroni wrote: > Suresh, > > IMHO this is not a problem with the state machine. The situation you have > described, whereby only two values are used for the identifier, is > completely allowable in EAP. Section 4.1 of RFC 3748 states the following: > > Identifier > > The Identifier field is one octet. The Identifier field MUST be > the same if a Request packet is retransmitted due to a timeout > while waiting for a Response. Any new (non-retransmission) > Requests MUST modify the Identifier field. > > The Identifier field of the Response MUST match that of the > currently outstanding Request. An authenticator receiving a > Response whose Identifier value does not match that of the > currently outstanding Request MUST silently discard the Response. > > In order to avoid confusion between new Requests and > retransmissions, the Identifier value chosen for each new Request > need only be different from the previous Request, but need not be > unique within the conversation. One way to achieve this is to > start the Identifier at an initial value and increment it for each > new Request. Initializing the first Identifier with a random > number rather than starting from zero is recommended, since it > makes sequence attacks somewhat more difficult. > > Since the Identifier space is unique to each session, > authenticators are not restricted to only 256 simultaneous > authentication conversations. Similarly, with re-authentication, > an EAP conversation might continue over a long period of time, and > is not limited to only 256 roundtrips. > > As you can see, each message simply needs a different Identifier from the > previous message, so alternation is quite ok. Furthermore, the situation > you have described is the running of multiple instances of the EAP state > machine for the purposes of 802.1X reauthentication. Technically these > values repeat, but only among different "runs" of EAP. The range of 0-255 > the POSSIBLE values of the identifier field, you are explicitly not > guaranteed to use all values or prevent collision among runs. > > Unless I am missing something in your question I would like to propose we > reject the comment as an Issue with the SM. > > Best, > nick > > Nick L. Petroni, Jr. > Graduate Student, Computer Science > Maryland Information Systems Security Lab > University of Maryland > http://www.cs.umd.edu/~npetroni > > On Thu, 24 Jun 2004, Suresh Babu wrote: > > >>Hi friends, >> >>I had the follwing doubt. >> >> When starting(initializing) the state machine,the currentid is initialized to NONE. >>After successful reauthentication in MD5 case it goes to 1, and sends a success packet >>with id=1, When the reAuthWhen timer expires in 802.1x layer, it reaches RESTART state and sets eapRestart to TRUE, So to move to CONNCTING state we had make eapRestart as FALSE, This is set by eap-statemachine. so again currentId becomes NONE. >> So under what conditions currentid can have 0-255 values, here i`m able get only >>0-1. How to get around of this problem? >>Thanx in Advance, >>Suresh Babu >> >> >>--------------------------------- >>Do you Yahoo!? >>New and Improved Yahoo! Mail - Send 10MB messages! > > > > > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap > > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 24 05:56:29 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id FAA10091 for ; Sat, 24 Jul 2004 05:56:29 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8F74821131; Sat, 24 Jul 2004 05:42:09 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 08D892169D; Sat, 24 Jul 2004 05:42:06 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4C56121131 for ; Sat, 24 Jul 2004 05:41:48 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id 7DDEF20A3A for ; Sat, 24 Jul 2004 05:41:46 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id A502B89841; Sat, 24 Jul 2004 12:56:03 +0300 (EEST) Message-ID: <410230F3.8020909@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Florent Bersani Cc: Nick Petroni , "eap@frascone.com" References: <40F82A12.7010707@piuha.net> <40F95FD8.50302@rd.francetelecom.fr> In-Reply-To: <40F95FD8.50302@rd.francetelecom.fr> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Security considerations text in state machine draft (Was: Re: [eap] [Issue 248] Comments on EAP state machine v4) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 24 Jul 2004 12:50:43 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Your text below looks good, Florent. Thanks. I see that Nick already incorporated this to -04. Good. --Jari > "As noted in RFC 3748 there are some security concerns that arise > because of the following EAP packets: > > 1. EAP-Request/Response Identity > 2. EAP-Response/NAK > 3. EAP-Success/Failure > > Since these packets are not cryptographically protected by themselves, > an attacker can modify them without immediate detection by the peer or > the server. > > Following Figure 3 specification, an attacker may cause denial of > service by: > > * Sending an EAP-Failure to the peer before the peer has started an > EAP authentication method. Indeed, as long as the peer has not > modified the methodState variable which is initialized to NONE, > the peer MUST accept an EAP-Failure. > * Forcing the peer to engage in endless EAP-Request/Response > Identity exchanges before it has started an EAP authentication > method. Indeed, as long as the peer has not modified the > selectedMethod variable which is initialized to NONE, the peer > MUST accept an EAP-Request/Identity and respond to it with an > EAP-Response/Identity > > Following Figure 4 specification, an attacker may cause denial of > service by: > > * Sending a NAK to the server after the server first proposes an EAP > authentication method to the peer. Indeed, as the methodState > takes the value PROPOSED, the server is obliged to process a NAK > that is included in response to its first packet of an EAP > authentication method. > > There MAY be some cases when it is desired to prevent such attacks. This > can be done by modifying initial values of some variables of the EAP > state machines. However, such modifications are NOT RECOMMENDED. > > There is indeed a tradeofff between mitigating these denial of service > attacks and being able to deal with EAP peers and servers in general. > For instance, should the sending of a NAK to the server after it has > just proposed an EAP authentication method to the peer be ignored, then > a legitimate peer that is not able or willing to process the proposed > EAP authentication method would fail without an opportunity to negotiate > another EAP method." _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 24 06:05:28 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id GAA10530 for ; Sat, 24 Jul 2004 06:05:28 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A71E3216A7; Sat, 24 Jul 2004 05:51:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 88D88216A2; Sat, 24 Jul 2004 05:51:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3DA612169F for ; Sat, 24 Jul 2004 05:50:11 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id 6F19F21131 for ; Sat, 24 Jul 2004 05:50:09 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id 6D58F89842; Sat, 24 Jul 2004 13:04:28 +0300 (EEST) Message-ID: <410232ED.7050404@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Florent Bersani , Nick Petroni Cc: "eap@frascone.com" Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Issue 251: immediate success/failure Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 24 Jul 2004 12:59:09 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit > I did not find a place in RFC 3748 saying that it is forbidden to have > multiple round trips of the Identity method. Right. Its not. Here's what Section 2.1 says, with my emphasis added: An EAP conversation *MAY utilize a sequence* of methods. A common example of this is an Identity request followed by a single EAP authentication method such as an MD5-Challenge. However, the peer and authenticator MUST utilize *only one authentication method (Type 4 or greater)* within an EAP conversation, after which the authenticator MUST send a Success or Failure packet. > If this is the case, the state machine reflects this... sadly, this > leads to an unnecessary (& stupid & not dramatic) DoS attack: the > attacker keeps sending EAP Identity request and the peer may keep > replying to these requests (and discarding the valid requests of the > server). This is true. I think this is covered by your security considerations text. > [Nick Petroni] > > I don't see the RFC as denying the use of immediate failure. The > behavior is valid IMHO. Immediate Success is of course forbidden. Reading RFC 3748 Section 2 bullets [1] and [4], and Section 4.2 first paragraph, the spec seems to say that immediate Failure is also forbidden. There is strictly speaking no keyword that prohibits it, but the text always indicates that you must have a method in progress before you can send a Failure. See this text from Section 4.2: "If the authenticator cannot authenticate the peer (unacceptable Responses to one or more Requests), then after unsuccessful completion of the EAP method in progress, the implementation MUST transmit an EAP packet with the Code field set to 4 (Failure)." (You could perhaps debate if the part in paranthesis, is a part of the normative text and exhaustive.) > [Florent] > > To be honest, I started the mail you replied to by lamenting that this > was not mandated by EAP (which you tend to think) but after rereading > RFC 3748 (I stumbled across some wording like "The EAP authentication > exchange proceeds as follows: [1] The authenticator sends a Request to > authenticate the peer." RFC 3748 page 7). > > So, although it didn't seem like very normative text, I changed my mind > and now think that EAP mandates that a dialog begins with a request. > > I'd really like others' opinion on this, Bernard, Jari? I think you are correct. What do others think? If this is correct, then it may be that the state machine needs some modification. Or so I would expect, if Nick this this behaviour is allowed. OTOH, when I read -04 peer state machine, one of the required conditions to go into the FAILURE state is to have reqId == lastId. Since lastId has been initialized to NONE, it seems that an immediate Failure is not accepted by the current state machine. --Jari _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 24 14:30:20 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA03479 for ; Sat, 24 Jul 2004 14:30:19 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 87F7820569; Sat, 24 Jul 2004 14:15:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 0B7A42066F; Sat, 24 Jul 2004 14:15:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 7ADCC20822 for ; Sat, 24 Jul 2004 14:14:20 -0400 (EDT) Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.188]) by mail.frascone.com (Postfix) with ESMTP id A042220633 for ; Sat, 24 Jul 2004 14:14:18 -0400 (EDT) Received: from [212.227.126.162] (helo=mrelayng.kundenserver.de) by moutng.kundenserver.de with esmtp (Exim 3.35 #1) id 1BoRG9-0005bg-00 for eap@frascone.com; Sat, 24 Jul 2004 20:28:37 +0200 Received: from [80.144.126.47] (helo=[192.168.0.3]) by mrelayng.kundenserver.de with asmtp (TLSv1:RC4-MD5:128) (Exim 3.35 #1) id 1BoRG9-0008Ij-00 for eap@frascone.com; Sat, 24 Jul 2004 20:28:37 +0200 From: Thomas Otto To: eap@frascone.com User-Agent: KMail/1.6.2 MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <200407242028.36775.t.otto@sharevolution.de> X-Provags-ID: kundenserver.de abuse@kundenserver.de auth:3105fcefe481186a11ed9e9de1ccc56f X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Info: Incomplete file Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 24 Jul 2004 20:28:36 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Hi! The file http://www.ietf.org/internet-drafts/draft-ietf-pppext-eap-ttls-05.txt seems incomplete, it ends with page 12. Thomas _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 24 15:26:48 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA07102 for ; Sat, 24 Jul 2004 15:26:48 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5CF3621719; Sat, 24 Jul 2004 15:07:10 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4065B208BA; Sat, 24 Jul 2004 15:07:06 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id DCBDE20BA8 for ; Sat, 24 Jul 2004 15:06:41 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id D693820A4C for ; Sat, 24 Jul 2004 15:06:39 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id D71E689842; Sat, 24 Jul 2004 22:20:29 +0300 (EEST) Message-ID: <4102B536.1020104@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Thomas Otto Cc: eap@frascone.com, Paul Funk Subject: Re: [eap] Info: Incomplete file References: <200407242028.36775.t.otto@sharevolution.de> In-Reply-To: <200407242028.36775.t.otto@sharevolution.de> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 24 Jul 2004 22:15:02 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Thomas Otto wrote: > Hi! > > The file http://www.ietf.org/internet-drafts/draft-ietf-pppext-eap-ttls-05.txt > seems incomplete, it ends with page 12. Yes, I get the same problem. Paul's private URL seems to work better: http://www.funk.com/documents/draft-ietf-pppext-eap-ttls-05.txt --Jari _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 24 16:31:29 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id QAA10289 for ; Sat, 24 Jul 2004 16:31:28 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 595DE2173C; Sat, 24 Jul 2004 16:17:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 427622173D; Sat, 24 Jul 2004 16:17:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 28ED72173C for ; Sat, 24 Jul 2004 16:16:40 -0400 (EDT) Received: from mail.funk.com (unknown [199.103.155.98]) by mail.frascone.com (Postfix) with ESMTP id 733B420C64 for ; Sat, 24 Jul 2004 16:16:38 -0400 (EDT) Received: from paulxeon.funk.com (paulxeon [172.16.10.10]) by mail.funk.com with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id NDFWTHXK; Sat, 24 Jul 2004 16:31:54 -0400 Message-Id: <5.2.0.9.2.20040724162750.049d1820@mail.funk.com> X-Sender: paul@mail.funk.com X-Mailer: QUALCOMM Windows Eudora Version 5.2.0.9 To: jari.arkko@piuha.net, Thomas Otto From: Paul Funk Subject: Re: [eap] Info: Incomplete file Cc: eap@frascone.com In-Reply-To: <4102B536.1020104@piuha.net> References: <200407242028.36775.t.otto@sharevolution.de> <200407242028.36775.t.otto@sharevolution.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 24 Jul 2004 16:31:20 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Thomas, Jari, Thanks for pointing this out. I mailed the IETF asking them to correct the posting. Meanwhile, the URL listed by Jari at the bottom of this email can be used. Paul At 10:15 PM 7/24/2004 +0300, Jari Arkko wrote: >Thomas Otto wrote: >>Hi! >>The file >>http://www.ietf.org/internet-drafts/draft-ietf-pppext-eap-ttls-05.txt >>seems incomplete, it ends with page 12. > >Yes, I get the same problem. Paul's private URL >seems to work better: > > http://www.funk.com/documents/draft-ietf-pppext-eap-ttls-05.txt > >--Jari Paul Funk Funk Software, Inc. 617 497-6339 paul@funk.com _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sat Jul 24 20:18:43 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id UAA21217 for ; Sat, 24 Jul 2004 20:18:43 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 05DD120D81; Sat, 24 Jul 2004 20:03:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id CC69120CB1; Sat, 24 Jul 2004 20:03:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 94B1620CA1 for ; Sat, 24 Jul 2004 20:02:37 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 762C5204F6 for ; Sat, 24 Jul 2004 20:02:35 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6P0Dwo29722 for ; Sat, 24 Jul 2004 17:13:58 -0700 From: Bernard Aboba To: eap@frascone.com In-Reply-To: <20040724164831.23456.63617.Mailman@xavier> Message-ID: References: <20040724164831.23456.63617.Mailman@xavier> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Re: Issue 251 Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sat, 24 Jul 2004 17:13:58 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > I agree with your assessment. I think we can reject > #252. I agree. > Right. Its not. Here's what Section 2.1 says, with my > emphasis added: > > An EAP conversation *MAY utilize a sequence* of methods. A common > example of this is an Identity request followed by a single EAP > authentication method such as an MD5-Challenge. However, the peer > and authenticator MUST utilize *only one authentication method (Type 4 > or greater)* within an EAP conversation, after which the authenticator > MUST send a Success or Failure packet. Indeed. This behavior is *required* in order to enable EAP Network Discovery to work. However, the client can put a limit on the total number of potential Identity round-trips, as should the server (in case the hint provided in the EAP-Request/Identity is not understood). > Reading RFC 3748 Section 2 bullets [1] and [4], and > Section 4.2 first paragraph, the spec seems to say > that immediate Failure is also forbidden. There > is strictly speaking no keyword that prohibits it, but > the text always indicates that you must have a > method in progress before you can send a Failure. > See this text from Section 4.2: > > "If the authenticator cannot authenticate the peer > (unacceptable Responses to one or more Requests), then > after unsuccessful completion of the EAP method in > progress, the implementation MUST transmit an EAP > packet with the Code field set to 4 (Failure)." > > (You could perhaps debate if the part in parenthesis, > is a part of the normative text and exhaustive.) > > I think you are correct. > > What do others think? > > If this is correct, then it may be that the state machine > needs some modification. OTOH, when I read -04 peer state > machine, one of the required conditions to go into the FAILURE > state is to have reqId == lastId. Since lastId has been initialized > to NONE, it seems that an immediate Failure is not accepted > by the current state machine. I agree with Jari here. The text of RFC 3748 assumes that an EAP conversation begins with a Request, which implies that a "canned" Failure is not allowed. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Sun Jul 25 23:22:44 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id XAA12343 for ; Sun, 25 Jul 2004 23:22:44 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B21F3212E0; Sun, 25 Jul 2004 23:02:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3418620D02; Sun, 25 Jul 2004 23:02:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3DCAB20B0A for ; Sun, 25 Jul 2004 23:01:38 -0400 (EDT) Received: from sj-iport-1.cisco.com (sj-iport-1-in.cisco.com [171.71.176.70]) by mail.frascone.com (Postfix) with ESMTP id 254C520CDD for ; Sun, 25 Jul 2004 23:01:34 -0400 (EDT) Received: from sj-core-2.cisco.com (171.71.177.254) by sj-iport-1.cisco.com with ESMTP; 25 Jul 2004 20:18:57 -0700 X-BrightmailFiltered: true Received: from E2K-SEA-XCH2.sea-alpha.cisco.com (e2k-sea-xch2.cisco.com [10.93.132.68]) by sj-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id i6Q3FkqO003492; Sun, 25 Jul 2004 20:15:53 -0700 (PDT) Received: from jsaloweyw2k01 ([10.82.225.125]) by E2K-SEA-XCH2.sea-alpha.cisco.com with Microsoft SMTPSVC(5.0.2195.6713); Sun, 25 Jul 2004 20:10:59 -0700 From: "Joseph Salowey" To: Cc: "'Bernard Aboba'" , Subject: RE: [eap] Proposed Resolution of Issue 215: Comments on Section 3 Message-ID: <008d01c472bd$44d40eb0$0300000a@amer.cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.5709 In-Reply-To: <4102225C.30305@piuha.net> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal X-OriginalArrivalTime: 26 Jul 2004 03:10:59.0507 (UTC) FILETIME=[2CDA4030:01C472BE] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Sun, 25 Jul 2004 20:04:28 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Jari Arkko wrote: > Joseph Salowey wrote: >=20 >> [Joe] With these definitions the key name length is highly variable. >> I >=20 > Yes. >=20 >> think it would be better to have a constant length identifier for the >> key. A length of 128 bits should be sufficient. Perhaps it can be >> defined as the SHA-1 hash of the data listed above (make it 160 bits >> for simplicity). >=20 > I would be fine with that, except that I wonder if we can > agree on the single hash function to use, or if we need to > negotiate the hash function somehow. At this point it is not > obvious to me that the negotiation can be done given the > current protocols. What are your thoughts on this? >=20 [Joe] Basically I think this should be up to the method. Methods should define a default key naming hashing scheme. If a method wants to have = the ability to negotiate other hash functions for naming then it can, but I don't really see this as necessary. What we probably want to define is = a name length that method should output, in general 128 bits seems = sufficient. > --Jari _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 26 01:21:34 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id BAA16764 for ; Mon, 26 Jul 2004 01:21:33 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 955B220F89; Mon, 26 Jul 2004 01:07:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 912CC20CFA; Mon, 26 Jul 2004 01:07:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B4B2620CFA for ; Mon, 26 Jul 2004 01:06:39 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id DE6622096C for ; Mon, 26 Jul 2004 01:06:37 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id C9CEB89839; Mon, 26 Jul 2004 08:20:52 +0300 (EEST) Message-ID: <41049370.7040205@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Joseph Salowey Cc: "'Bernard Aboba'" , eap@frascone.com Subject: Re: [eap] Proposed Resolution of Issue 215: Comments on Section 3 References: <008d01c472bd$44d40eb0$0300000a@amer.cisco.com> In-Reply-To: <008d01c472bd$44d40eb0$0300000a@amer.cisco.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 26 Jul 2004 08:15:28 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Joseph Salowey wrote: > [Joe] Basically I think this should be up to the method. Methods should > define a default key naming hashing scheme. If a method wants to have the > ability to negotiate other hash functions for naming then it can, but I > don't really see this as necessary. What we probably want to define is a > name length that method should output, in general 128 bits seems sufficient. Would you still require the method to use the input that we defined earlier for the hash? So only the hash, not the input would be method dependent? I think that may be required, otherwise the key Ids will not be sufficiently different among methods. The other question I had is what if there's a collision among the different hash functions? I assume that such collisions would be rare for good quality hash functions, so normally this would not be a problem. But lets say someone deploys method X that uses SHA666, which is later discovered to be weak. So weak in fact that you can calculate the inputs that you need for a specific value. Would this enable anyone with an X account generate a key id that matches with someone else's keyid from method Y? And if so, would it matter? Lets think about this: 1. If we mandate that client id is a part of the input, it becomes a bit harder for the attacker to choose the right input. But presumably it will still be possible to create a matching key id based on varying the rest of the input, such as the client nonce. 2. This may be problematic if the bogus keyid now replaces state reserved for the real key associated with the same key id. 3. The same would not be possible in the hash-less scheme, because we required the inputs, such as method type, to be present. 4. However, this attack still requires (a) that there exists a bad method with a bad hash function, and (b) that someone's server is still accepting that bad method and bad hash function. 5. Having a bad hash function may also mean other things for that server, such as ability to spoof authentication without keys. Conclusion: I worried a bit about 2 and 3 above, but 4 and 5 seem to indicate that the only nodes affected would be the clients of a server that still uses the bad method for someone. So maybe its not a problem. --Jari _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 26 04:15:26 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id EAA08303 for ; Mon, 26 Jul 2004 04:15:26 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A9ADC20D01; Mon, 26 Jul 2004 03:58:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6620020FAB; Mon, 26 Jul 2004 03:58:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id C6E3620FAB for ; Mon, 26 Jul 2004 03:57:06 -0400 (EDT) Received: from thoth.sbs.de (thoth.sbs.de [192.35.17.2]) by mail.frascone.com (Postfix) with ESMTP id DC5E120D01 for ; Mon, 26 Jul 2004 03:57:04 -0400 (EDT) Received: from mail3.siemens.de (mail3.siemens.de [139.25.208.14]) by thoth.sbs.de (8.12.6/8.12.6) with ESMTP id i6Q8BQ1j026232; Mon, 26 Jul 2004 10:11:26 +0200 Received: from hannes (mhpakcsc.mchp.siemens.de [139.23.202.144]) by mail3.siemens.de (8.11.7/8.11.7) with ESMTP id i6Q8BO312278; Mon, 26 Jul 2004 10:11:25 +0200 (MEST) Message-Id: <200407260811.i6Q8BO312278@mail3.siemens.de> From: "Hannes Tschofenig" To: "'Alper Yegin'" , Subject: RE: [eap] A comment on draft-groeting-eap-netselection-results-00.txt MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: AcRulN8T6f/NDF1gTwCDFUOSDBbrSgDnOb8g In-Reply-To: <002b01c46e94$a53efbc0$6401a8c0@sisa.samsung.com> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 26 Jul 2004 10:11:23 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit hi alper, you are certainly right with your comment that authorization is one of the most important aspects. many flavors of network access never cared about the authentication of the access network to the user. the reason for this is historical and the de-facto keying framework does not offer this capability. with a large number of networks, the lower trust between the visited and the home network, the 'lying nas' problem and things like non-transparent cost infrastructure it is more important to learn the identity of the visited network. in order to determine the identity different approaches can be chosen. the fact that the network is equipped with an identity is, as discussed with bernard, also an important fact. ciao hannes > -----Original Message----- > From: Alper Yegin [mailto:alper.yegin@samsung.com] > Sent: Dienstag, 20. Juli 2004 22:04 > To: eap@frascone.com > Subject: [eap] A comment on > draft-groeting-eap-netselection-results-00.txt > > The usage of EAP the Extensible Authentication Protocol in > IEEE 802.1x/IEEE 802.11i or also PANA never aimed to allow > authentication of the access network to the end host. > > I think what we really care is the authorization: Is this NAS > authorized to serve the client for network access service? AS > should make this determination, looking at the ID of the NAS > and authenticating it as a part of the RADIUS/Diameter exchange. > > At the end of the full round of AAA, NAS has the blessing of > the AS. By the virtue of having the right crypto key > (AAA-Key), it can prove that to the client as well. > > Alper > > > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From sgrjqlpewr@mfinance.com Mon Jul 26 08:59:22 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id IAA21545; Mon, 26 Jul 2004 08:59:22 -0400 (EDT) Received: from host50.foretec.com ([65.246.255.50] helo=mx2.foretec.com) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1Bp55x-0005yo-QI; Mon, 26 Jul 2004 09:00:50 -0400 Received: from cpe0050da15483f-cm013439901368.cpe.net.cable.rogers.com ([24.102.138.69] helo=24.102.138.69) by mx2.foretec.com with smtp (Exim 4.24) id 1Bp4Ca-0004p0-0A; Mon, 26 Jul 2004 08:03:32 -0400 Received: from [205.206.89.33] by 24.102.138.69 with Microsoft SMTPSVC; Mon, 26 Jul 2004 07:56:35 -0600 Received: from sgrjqlpewr@mfinance.com by [24.102.138.69] with Microsoft SMTPSVC; Mon, 26 Jul 2004 07:56:35 -0600 X-Originating-IP: [48.97.144.30] From: "Rhoades" To: Subject: Re: Application Update Date: Mon, 26 Jul 2004 07:55:05 -0600 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Message-ID: X-Spam-Score: 6.4 (++++++) X-Spam-Flag: YES X-Scan-Signature: cab78e1e39c4b328567edb48482b6a69 Content-Transfer-Encoding: quoted-printable Hi

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From eap-admin@frascone.com Mon Jul 26 11:12:07 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA11471 for ; Mon, 26 Jul 2004 11:12:06 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5EE6620320; Mon, 26 Jul 2004 10:57:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4B261217F6; Mon, 26 Jul 2004 10:57:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id C2211217F7 for ; Mon, 26 Jul 2004 10:57:00 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id BBD2D217F6 for ; Mon, 26 Jul 2004 10:56:58 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6QF8Fe05690 for ; Mon, 26 Jul 2004 08:08:15 -0700 From: Bernard Aboba To: eap@frascone.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] RADEXT WG last call on RFC 2486bis Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 26 Jul 2004 08:08:15 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) This is an announcement of RADEXT WG Last Call on "The Network Access Identifier" specification, RFC 2486bis, prior to sending the draft on to the IESG for consideration as an IETF Proposed Standard (recycled). The draft is available for inspection at: http://www.ietf.org/internet-drafts/draft-arkko-roamops-rfc2486bis-02.txt RADEXT WG Last Call will complete on August 26, 2004. Please send comments to the RADEXT WG mailing list (radiusext@ops.ietf.org), using the issue format described at http://www.drizzle.com/~aboba/AAA/issues.html. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 26 12:00:07 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id MAA21446 for ; Mon, 26 Jul 2004 12:00:05 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id EB75921420; Mon, 26 Jul 2004 11:45:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 7BF0121426; Mon, 26 Jul 2004 11:45:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 7130521426 for ; Mon, 26 Jul 2004 11:44:32 -0400 (EDT) Received: from redmailwall5.attws.com (redmailwall5.attws.com [67.98.173.56]) by mail.frascone.com (Postfix) with ESMTP id 3C40621420 for ; Mon, 26 Jul 2004 11:44:30 -0400 (EDT) Received: from viruswall2.entp.attws.com ([135.214.241.196]) by redmailwall5.attws.com (8.12.10/8.12.6) with ESMTP id i6QFwpql010648; Mon, 26 Jul 2004 08:58:52 -0700 (PDT) Received: from scentmail.entp.attws.com (localhost [127.0.0.1]) by viruswall2.entp.attws.com (8.12.10/8.12.10) with ESMTP id i6QFwqB5013491; Mon, 26 Jul 2004 08:58:52 -0700 (PDT) Received: from WA-MSGBH01-BTH.wireless.attws.com (WA-MSGBH01-BTH.wireless.attws.com [135.214.26.241]) by scentmail.entp.attws.com (8.8.8p2+Sun/8.8.8) with ESMTP id IAA04220; Mon, 26 Jul 2004 08:58:50 -0700 (PDT) Received: from WA-MSG10-BTH.wireless.attws.com ([135.214.41.74]) by WA-MSGBH01-BTH.wireless.attws.com with Microsoft SMTPSVC(5.0.2195.5329); Mon, 26 Jul 2004 08:58:49 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [eap] Review of draft-adrangi-eap-network-discovery-01.txt Message-ID: Thread-Topic: [eap] Review of draft-adrangi-eap-network-discovery-01.txt Thread-Index: AcRrYwYO9P6z2tqDSYi8rbx41m0nBQCdqnTgAVPD5oA= From: "Bari, Farooq" To: "Adrangi, Farid" , "Bernard Aboba" , Cc: "Jari Arkko" X-OriginalArrivalTime: 26 Jul 2004 15:58:49.0475 (UTC) FILETIME=[70B17D30:01C47329] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 26 Jul 2004 08:58:49 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Hi Bernard, I have not seen any response to this email thread. Can we take this silence as an agreement? BR, Farooq -----Original Message----- From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] On Behalf Of Adrangi, Farid Sent: Monday, July 19, 2004 5:03 PM To: Bernard Aboba; eap@frascone.com Cc: Jari Arkko Subject: RE: [eap] Review of draft-adrangi-eap-network-discovery-01.txt Hi Bernard, Thanks for another round of comments and helping us in improving the draft - is very much appreciated! Please see my comments inline. BR, Farid > -----Original Message----- > From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] On Behalf > Of Bernard Aboba > Sent: Friday, July 16, 2004 11:28 AM > To: eap@frascone.com > Subject: [eap] Review of draft-adrangi-eap-network-discovery-01.txt >=20 >=20 > Comments on draft-adrangi-eap-network-discovery-01.txt: >=20 > In general, I'm confused as to whether this document is specifying a=20 > general mechanism for providing hints relating to supported=20 > EAP-Response NAIs, or a 3GPP-specific mechanism for network discovery. > If the former, > I'd suggest that the title be changed to "EAP Identity Discovery > Mechanism". If the latter, I'd suggest that the title be changed to: >=20 > "3GPP Network Discovery Mechanism" >=20 The main motivation of the draft is to solve 3GPP VPLMN discovery & selection. However, the proposed solution can be applied to any other mediating network types and therefore I think the current title (" Mediating Network Discovery in the Extensible Authentication Protocol(EAP)") is appropriate. Furthermore, I believe the title and the problem description is consistent with what described in the netselc problem statement draft - if so, I don't really understand the source of the confusion here. Please read more on this topic below. > Whichever tack you are taking should be clearly indicated in the=20 > Appendix. >=20 > Section 1 - Introduction >=20 > I think that in this section you want to present the general problem,=20 > which is how an EAP server can provide a hint to the EAP peer as to=20 > what identity is required in the EAP Response. >=20 First, the intent here is *NOT* to have EAP server to provide this hint - the hint comes from the AP or the access network AAA server. The problem statement draft (draft-ietf-eap-netsel-problem-00.txt) describes four distinct problems: 1) Access Network selection 2) Credential Selection 3) Mediating Network Selection 4) Payload routing. Our focus here is the problem #3 -- specifically, on the mediating network *discovery* aspect of it; the selection part is addressed by 2486bis. Do you see any inconsistency here w.r.t to the problem statement draft? > That problem can occur even where there is only one network > available, but > the NAI provided is not one which the EAP server can recognize. For > example, I roam to a guest network and because SSIDs are not unique, > confusion results and the EAP peer presents the wrong NAI. =20 > While today it > is possible to send a notification telling the user that something has > gone wrong, wouldn't it be better if the problem could be fixed > automatically? >=20 Valid problem. But, I think this is not related to mediating network discovery rather it is a credential selection problem. If so, I would prefer to discuss this in a separated draft if you are okay with it? =20 > It just so happens that this problem needs to be solved > for the purposes of network discovery, but I think that > introducing this early on muddies the waters. >=20 For the purpose of *Mediating Network Discovery*! > For example, while one could argue that advertisement > of mediating networks is something that belongs in the > lower layer, providing a hint about the appropriate > EAP-Response is clearly an EAP function. >=20 We discussed other alternatives (e.g., lower layers) with pros and cons of each in the last IETF (presented by Jari), and there was a consensus that we need an EAP-based solution (at a minimum as a short-term solution). We also decided to have the draft to focus on describing how the problem can be solved using EAP, and not going into describing other alternatives that can be implemented today or enabled by future enhancements/extensions from IEEE. FYI - in the previous versions of the draft, we had a section describing other alternatives with pros and cons of each, and the rationale for the proposed EAP-base method. =20 > So I think this section needs to clearly articulate the > general problem or else the document becomes vulnerable > to the criticism that it represents a layer violation. >=20 =20 I still don't understand why you think the problem is not clear. And so far, I haven't seen any criticism that the proposed solution represents a layer violation. How can this be a layer violation if you believe that the selection can be done using NAI decoration (as specified in your draft 2486bis)? > Personally, I'd prefer if this section stated up front > some basic aspects of NAIRealms, such as: >=20 > * It builds on the NAI Realm syntax specified in > RFC 2486bis; >=20 This is mentioned in the introduction section (see the quote below). But, we can put more emphasis on it if you want? " ... Section 2.7 of [2486bis] discusses the conditions upon which NAIs can be used to affect AAA routing, i.e., problem 3 above. Problems 1 and 2 are discussed in this document " > * It provides a hint as to the NAI Realm that the > EAP Server is expecting, enabling improved > robustness; >=20 We are talking about AAA routing here -- this is about providing a hint (in form of NAI realms) to the EAP peer by an AP or access network AAA server. What is the role of "EAP server" in this context? > * It is compatible with any EAP method; Ok. =20 >=20 > * It is unsecured -- and therefore may not be > preferable to secured identity selection mechanisms, > such as RFC 3770; >=20 The fact that the mediating network discovery process is insecure is mentioned in the security section of the draft. This draft has decoupled authentication from the mediating network discovery process. This decoupling is especially useful for networks like the 3GPP where SIM is used for authentication once a mediating network is discovered / selected. In conclusion, IMO, the comparison with RFC 3770 will not make sense here and therefore it should not be discussed in this draft. Agree? =20 > * It may enable additional credential disclosure attacks,=20 > although only if > insecure EAP methods are used; >=20 I do not see how this will be true for 3GPP networks for example. See my comments to your previous question. > Personally, I see mediating network discovery as only > one application of this specification and would prefer > that "Application" to be discussed later on, or even > moved to an Appendix. >=20 IMO, the draft is clear on usage model for mediating network discovery and emphasizes that it should not be extended to solve other problems.=20 The draft describes a well identified and a specific problem with a narrow scope that requires an immediate solution in our industry. It maps to one of the four identified areas in the problem statement draft and I believe we should not try to extend it for solving any other more general problems. > Since the diagrams mention "AAA" I'm not even sure why > the RADIUS disclaimer is necessary. You could just say > that "this mechanism is compatible with > either the RADIUS or Diameter protocol". >=20 This is what draft says: " RADIUS [2] protocol has been assumed for AAA mediation between the access network and the home network although Diameter [3] could also be used instead of RADIUS without introducing significant architectural differences. " The reason for this is to give more specific and clear examples when we describe implementation notes or the delivery option mechanisms in the appendix. > Section 2 >=20 > Somewhere I think you need to describe how the functionality > in this specification affects behavior of [RFC3748] implementations, > before launching into the grammar. Otherwise this is left to the > imagination which is a bad thing given that 3GPP has requested a > review of compatibility with [RFC3748]. >=20 > I'd suggest that you need a section prior to the existing Section 2. >=20 > Here is what Section 5.1 of [RFC3748] says: >=20 > " The Identity Type is used to query the identity of the peer. > Generally, the authenticator will issue this as the initial > Request. An optional displayable message MAY be included to > prompt the peer in the case where there is an expectation of > interaction with a user. A Response of Type 1 (Identity) SHOULD > be sent in Response to a Request with a Type of 1 (Identity). >=20 > Some EAP implementations piggy-back various options into the > Identity Request after a NUL-character. By default, an EAP > implementation SHOULD NOT assume that an Identity Request or > Response can be larger than 1020 octets." >=20 > and later: >=20 > " Implementation Note: The peer MAY obtain the Identity via=20 > user input. > It is suggested that the authenticator retry the Identity=20 > Request in > the case of an invalid Identity or authentication failure to allow > for potential typos on the part of the user. It is suggested that > the Identity Request be retried a minimum of 3 times before > terminating the authentication. The Notification Request=20 > MAY be used > to indicate an invalid authentication attempt prior to=20 > transmitting a > new Identity Request (optionally, the failure MAY be=20 > indicated within > the message of the new Identity Request itself)." >=20 > Given the above, you need to describe the following: >=20 > * How the specification interacts with other existing piggy-back > practices. As I understand it, the grammar is intentionally made > compatible with those existing extensions, but you should say that. >=20 Are you referring to other implementation that already use the EAP-Identity type-data field (the space after the null) in proprietary manner? Please clarify. =20 > * How retry behaviors are affected. How are endless loops prevented? > For example, is the [RFC3748] behavior unmodified? >=20 Yes. We will add a text that the proposed solution is fully compliant with RFC 3748. Unless you see some inconsistency here? > * How errors are handled. Is Notification used to inform the user > that something has gone wrong? Or do things just break without > notice? >=20 Error handling is done according to RFC 3748. > * How the proposed functionality works with the minimum > EAP MTU size of 1020 octets. Note that since the functionality > in question is already used for other purposes, you can't necessarily > assume that you have the entire EAP Request to yourself. How > many NAIRealms can fit within what might be less than 1020 octets? > Is this enough? >=20 We can provide general guidelines on it e.g. from 3GPP in the implementation considerations section of the draft. A Realm in 3GPP will be mnc.mcc@3gppnetwork.org. With maximum lengths for mnc and mcc to be 3 characters, the realm will be 23 characters followed by ";". This would provide space for roughly 42 mediating networks in 1020 octets. We Believe this to be quite enough especially when this information is only considered a hint and the serving network is not required to provide an exhaustive list of mediating networks. Please note that in 3GPP we are working to convey the VPLMN name in less number of characters -- for example, just mnc.mcc. This means that the space can utilized much more efficiently. So how about the following text to be added in Section 4? "Because of space constraints (imposed by the link MTU) in EAP-Identity Request message, the maximum size of mediating networks related information is roughly limited to 1020 octets. In the case of 3GPP for example, a realm will be mnc.mcc@3gppnetwork.org. With maximum lengths for mnc and mcc to be 3 characters, the realm will be 23 characters followed by ";". This would provide space for carrying information on 42 mediating networks in 1020 octets. Optimization of 3GPP mediating network information carried in EAP-Identity Request message is possible by simply providing only the mnc and mcc part of the realm, i.e., mncmcc followed by a ";". This optimization will utilize the space much more efficiently, and it allows information on more mediating networks to be conveyed in the EAP-Identity Request." > Sections 3 and 4 - These sections seem to belong with Appendix A, > especially since that Appendix already references them. > _______________________________________________ This is more like organization issue -- we can discuss it once we are done with closing all technical issues. > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap >=20 _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Mon Jul 26 13:24:46 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id NAA12161 for ; Mon, 26 Jul 2004 13:24:45 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 010132146C; Mon, 26 Jul 2004 13:08:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 9D89A1FC17; Mon, 26 Jul 2004 13:08:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id C00721FC0E for ; Mon, 26 Jul 2004 13:07:53 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id B1C1C1FC17 for ; Mon, 26 Jul 2004 13:07:50 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6QHJ5k14763; Mon, 26 Jul 2004 10:19:05 -0700 From: Bernard Aboba To: eap@frascone.com Cc: "Adrangi, Farid" Subject: RE: [eap] Review of draft-adrangi-eap-network-discovery-01.txt In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 26 Jul 2004 10:19:05 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > First, the intent here is *NOT* to have EAP server to provide this hint > - the hint comes from the AP or the access network AAA server. The EAP Server is defined as the endpoint initiating EAP. How can the EAP server not be involved in the conversation? > Valid problem. But, I think this is not related to mediating network > discovery rather it is a credential selection problem. If so, I would > prefer to discuss this in a separated draft if you are okay with that? My original understanding was that the hints were given in the form of an NAI Realm as defined in RFC 2486bis, providing information on the NAI Realm required in the EAP-Response/Identity. For example, say an EAP peer receives an EAP-Request with NAIRealm=foo.com. The peer has potential identities for boo@example.com, and boo@foo.com. Based on the hint, my understanding was that the peer would select boo@foo.com. Is this correct? Of course there are other cases too, such as where "foo.com" is advertised in the NAIRealm and the peer has "boo@example.com" and therefore might send a decorated NAI (boo!example.com@foo.com). But it seems like the basic case should also work. Is it still true that the "NAIRealm" grammar references RFC 2486bis? It sounds like there is a "short form" grammar also under discussion. > Are you referring to other implementation that already use the > EAP-Identity type-data field (the space after the null) in proprietary > manner? Please clarify. Yes. Those implementations will continue to exist, so they can't be outlawed. > Yes. We will add a text that the proposed solution is fully compliant > with RFC 3748. Unless you see some inconsistency here? What's needed is some advice on how to avoid problems. For example, EAP servers should give up after N (n=3?) attempts, etc. > Error handling is done according to RFC 3748. There is no general error handling facility in EAP. Are you referring to a Notification-Request? > example, just mnc.mcc. This means that the space can utilized much more > efficiently. This implies a change to the grammar, no? Wouldn't this make the NAIRealms incompatible with the NAI Realm grammar in RFC 2486bis? I think if you are going to use a different grammar, then you probably also need to indicate this somehow, perhaps with a different keyword. Note that this also changes the scope of the draft since now it is no longer a general facility for realm hints, but one which is 3GPP specific. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From kqgexpd@didamail.com Mon Jul 26 15:07:15 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA27193; Mon, 26 Jul 2004 15:07:15 -0400 (EDT) Received: from [210.182.118.61] (helo=132.151.6.1) by ietf-mx.ietf.org with smtp (Exim 4.33) id 1BpAq6-0004IU-2d; Mon, 26 Jul 2004 15:08:48 -0400 X-Message-Info: WCC/q+656+te/F+331/301226348024 Received: from smtp-cryptogram.dimple.kqgexpd@didamail.com ([210.182.118.61]) by u35-wx3.kqgexpd@didamail.com with Microsoft SMTPSVC(5.0.3016.1463); Tue, 27 Jul 2004 00:58:10 +0500 Received: from vineyard120.hearten.kqgexpd@didamail.com (buttress315.kqgexpd@didamail.com [210.182.118.61]) by smtp-decelerate.balinese.kqgexpd@didamail.com (Postfix) with SMTP id 59JKX715N35A for ; Mon, 26 Jul 2004 23:06:10 +0300 Received: from smtp-bellwether.scutum.kqgexpd@didamail.com ([210.182.118.61]) by cr6-l71.kqgexpd@didamail.com with Microsoft SMTPSVC(5.0.1961.3467); Mon, 26 Jul 2004 23:58:10 +0400 X-Message-Info: IIXQO+%ND_LC_CHAR[1-3]378+jso+HUV+353/784515802089 Received: from within.kqgexpd@didamail.com ([7.179.254.124]) by convergent.kqgexpd@didamail.com with MailEnable ESMTP; Mon, 26 Jul 2004 12:59:10 -0700 Date: Mon, 26 Jul 2004 15:07:10 -0500 Message-Id: <0657736263.19650@kqgexpd@didamail.com> From: Florine Calderon To: Egaco MIME-Version: 1.0 (produced by diceardent 2.0) Content-Type: multipart/alternative; boundary="--44210673365073450" X-Spam-Score: 21.7 (+++++++++++++++++++++) X-Spam-Flag: YES X-Scan-Signature: 41c17b4b16d1eedaa8395c26e9a251c4 ----44210673365073450 Content-Type: text/html; charset="iso-2126-0" Content-Description: divisor carolingian asbestos Content-Transfer-Encoding: quoted-printable

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http://basicmeds.net/?partid= =3Dsf ----44210673365073450-- From eap-admin@frascone.com Mon Jul 26 17:53:28 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id RAA12761 for ; Mon, 26 Jul 2004 17:53:27 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3525320528; Mon, 26 Jul 2004 17:36:09 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2F4132147A; Mon, 26 Jul 2004 17:36:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 44FFF20528 for ; Mon, 26 Jul 2004 17:35:46 -0400 (EDT) Received: from hermes.jf.intel.com (fmr05.intel.com [134.134.136.6]) by mail.frascone.com (Postfix) with ESMTP id BF0571FE37 for ; Mon, 26 Jul 2004 17:35:42 -0400 (EDT) Received: from petasus.jf.intel.com (petasus.jf.intel.com [10.7.209.6]) by hermes.jf.intel.com (8.12.9-20030918-01/8.12.9/d: major-outer.mc,v 1.15 2004/01/30 18:16:28 root Exp $) with ESMTP id i6QLpXx3003352; Mon, 26 Jul 2004 21:51:33 GMT Received: from orsmsxvs040.jf.intel.com (orsmsxvs040.jf.intel.com [192.168.65.206]) by petasus.jf.intel.com (8.12.9-20030918-01/8.12.9/d: major-inner.mc,v 1.10 2004/03/01 19:21:36 root Exp $) with SMTP id i6QLpCcP001742; Mon, 26 Jul 2004 21:51:53 GMT Received: from orsmsx331.amr.corp.intel.com ([192.168.65.56]) by orsmsxvs040.jf.intel.com (SAVSMTP 3.1.2.35) with SMTP id M2004072614483215555 ; Mon, 26 Jul 2004 14:48:36 -0700 Received: from orsmsx408.amr.corp.intel.com ([192.168.65.52]) by orsmsx331.amr.corp.intel.com with Microsoft SMTPSVC(6.0.3790.0); Mon, 26 Jul 2004 14:48:17 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [eap] Review of draft-adrangi-eap-network-discovery-01.txt Message-ID: Thread-Topic: [eap] Review of draft-adrangi-eap-network-discovery-01.txt Thread-Index: AcRzNRpIo6JvHMqfQN+krSA32W9F8QAGcFxw From: "Adrangi, Farid" To: "Bernard Aboba" , Cc: "Bari, Farooq" , X-OriginalArrivalTime: 26 Jul 2004 21:48:17.0166 (UTC) FILETIME=[42693AE0:01C4735A] X-Scanned-By: MIMEDefang 2.31 (www . roaringpenguin . com / mimedefang) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 26 Jul 2004 14:48:16 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Hi Bernard, Thanks for your reply. Please see my comments inline. BR, Farid >=20 > > First, the intent here is *NOT* to have EAP server to provide this > > hint > > - the hint comes from the AP or the access network AAA server. >=20 > The EAP Server is defined as the endpoint initiating EAP. > How can the EAP server not be involved in the conversation? >=20 EAP server will be involved eventually. But, the AAA routing happens before the EAP server comes into the picture. For example, who sends the initial EAP-Identity Request when the WLAN client associates to the AP? Answer: the AP for the access network AAA proxy. If so, then, the WLAN client responds with the EAP-Identity Response which may contain a decorated NAI. The AAA proxy uses the decorated NAI to determine how to route the AAA packet which also encapsulates EAP. So, the AAA routing happens before the EAP server becomes involved. Please let me know if I am missing your point here? > > Valid problem. But, I think this is not related to > mediating network > > discovery rather it is a credential selection problem. If > so, I would > > prefer to discuss this in a separated draft if you are okay > with that? >=20 > My original understanding was that the hints were given in > the form of an NAI Realm as defined in RFC 2486bis, providing=20 > information on the NAI Realm required in the EAP-Response/Identity. >=20 Correct. > For example, say an EAP peer receives an EAP-Request with > NAIRealm=3Dfoo.com. >=20 > The peer has potential identities for boo@example.com, and > boo@foo.com. Based on the hint, my understanding was that=20 > the peer would select boo@foo.com. Is this correct? >=20 Here are the assumption for the problem that we are solving: - The user has one identity (boo@example.com). - The access network does not have a direct relationship with example.com - i.e., it cannot forward the AAA packet to example.com directly. - the access network has roaming relationship with the foo.com (the intermediary) - example.com has roaming relationship with foo.com (the intermediary) - Using the proposed solution and 2486bis, the user forms a decorated NAI : example!boo@foo.com. to influence the routing of AAA packet through foo.com to example.com. I would like to treat the scenario that you described (i.e., multiple identities; identity/credential selection) as a separate problem -- it is also treated as such in the problem statement draft. > Of course there are other cases too, such as where "foo.com"=20 > is advertised in the NAIRealm and the peer has=20 > "boo@example.com" and therefore might send a decorated NAI=20 > (boo!example.com@foo.com). But it seems like the basic case=20 > should also work. >=20 > Is it still true that the "NAIRealm" grammar references RFC=20 > 2486bis? It sounds like there is a "short form" grammar also=20 > under discussion. >=20 The draft clearly refers to RFC 2486bis for the NAI grammer and the NAI decoration syntax - please let's not confuse the grammer "NAIRealm" attribute (defined in the EAP-discovery draft) and the NAI grammer (which include NAI realm) defined in 2486bis. If someone wants to change the NAI grammar or use a different syntax for NAI decoration, then he/she should convince the authors of RFC 2486bis for that change! The grammer for "NAIRealm" attribute is defined to express the MN information -- example: NAIRealm=3Danyisp1.com;anyisp2.org;mnc.mcc -- Where the syntax for anyisp.com and mnc.mcc is compliant with the syntax of NAI realm defined in the 2486bis (page 5). > > Are you referring to other implementation that already use the=20 > > EAP-Identity type-data field (the space after the null) in=20 > proprietary=20 > > manner? Please clarify. >=20 > Yes. Those implementations will continue to exist, so they=20 > can't be outlawed. >=20 Agree. First, this should not be a problem if MN information is conveyed on a subsequent EAP-Identity Request -- and that's the delivery option the draft recommends. In other cases, "NAIRealm" attribute should coexist with other proprietary stuff placed after the NULL character in the EAP-Identity Request. There are two possibilities: 1) "NAIRealm" attribute is always placed last after the proprietary stuff. So, the client searches for the keyword "NAIReal" and consumes the information after that as the MN information. Note that the assumption here is that the proprietary information does not contain the "NAIRealm" followed by "=3D" keyword. 2) "NAIRealm" can be placed anywhere after the NULL character. Extend the grammar to indicate the end of NAIRealm attribute. I like the first option -- what is your advice? I will update the draft based on that. > > Yes. We will add a text that the proposed solution is=20 > fully compliant > > with RFC 3748. Unless you see some inconsistency here? >=20 > What's needed is some advice on how to avoid problems. For=20 > example, EAP servers should give up after N (n=3D3?) attempts, etc. >=20 Ok. I need to double check RFC 3748 -- my understanding was that we use whatever is recommended in RFC 3748 for these problems -- for example : retries. > > Error handling is done according to RFC 3748. >=20 > There is no general error handling facility in EAP. Are you=20 > referring to a Notification-Request? >=20 Yes. > > example, just mnc.mcc. This means that the space can utilized much=20 > > more efficiently. >=20 > This implies a change to the grammar, no? Wouldn't this make=20 > the NAIRealms incompatible with the NAI Realm grammar in RFC 2486bis? It should not. My understanding is that mnc.mcc is a valid realm according to 2486bis - no? =20 >=20 > I think if you are going to use a different grammar, then you=20 > probably also need to indicate this somehow, perhaps with a=20 > different keyword. Note that this also changes the scope of=20 > the draft since now it is no longer a general facility for=20 > realm hints, but one which is 3GPP specific. >=20 >=20 >=20 We will *NOT* use a different grammar other than NAI realm defined in 2486bis. Being compliant to RFC 3748 and RFC 2486 are the key requirements for us. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 27 02:41:37 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id CAA23123 for ; Tue, 27 Jul 2004 02:41:36 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id AFBE421308; Tue, 27 Jul 2004 02:27:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 55C6820D75; Tue, 27 Jul 2004 02:27:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 86B6D20CE4 for ; Tue, 27 Jul 2004 02:26:10 -0400 (EDT) Received: from sj-iport-1.cisco.com (sj-iport-1-in.cisco.com [171.71.176.70]) by mail.frascone.com (Postfix) with ESMTP id C4E2B208E0 for ; Tue, 27 Jul 2004 02:26:08 -0400 (EDT) Received: from sj-core-4.cisco.com (171.68.223.138) by sj-iport-1.cisco.com with ESMTP; 26 Jul 2004 23:43:45 -0700 X-BrightmailFiltered: true Received: from E2K-SEA-XCH2.sea-alpha.cisco.com (e2k-sea-xch2.cisco.com [10.93.132.68]) by sj-core-4.cisco.com (8.12.10/8.12.6) with ESMTP id i6R6eQPj005515; Mon, 26 Jul 2004 23:40:29 -0700 (PDT) Received: from jsaloweyw2k01 ([10.82.225.17]) by E2K-SEA-XCH2.sea-alpha.cisco.com with Microsoft SMTPSVC(5.0.2195.6713); Mon, 26 Jul 2004 23:46:15 -0700 From: "Joseph Salowey" To: Cc: "'Bernard Aboba'" , Subject: RE: [eap] Proposed Resolution of Issue 215: Comments on Section 3 Message-ID: <000801c473a4$833ed3a0$0300000a@amer.cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.5709 In-Reply-To: <41049370.7040205@piuha.net> Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-OriginalArrivalTime: 27 Jul 2004 06:46:16.0265 (UTC) FILETIME=[6A40DB90:01C473A5] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Mon, 26 Jul 2004 23:39:45 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable > -----Original Message----- > From: Jari Arkko [mailto:jari.arkko@piuha.net]=20 > Sent: Sunday, July 25, 2004 10:15 PM > To: Joseph Salowey > Cc: 'Bernard Aboba'; eap@frascone.com > Subject: Re: [eap] Proposed Resolution of Issue 215: Comments=20 > on Section 3 >=20 >=20 > Joseph Salowey wrote: >=20 > > [Joe] Basically I think this should be up to the method. Methods=20 > > should define a default key naming hashing scheme. If a=20 > method wants=20 > > to have the ability to negotiate other hash functions for=20 > naming then it can, but I > > don't really see this as necessary. What we probably want=20 > to define is a > > name length that method should output, in general 128 bits seems=20 > > sufficient. >=20 > Would you still require the method to use the input that > we defined earlier for the hash? So only the hash, not the=20 > input would be method dependent? I think that may be=20 > required, otherwise the key Ids will not be sufficiently=20 > different among methods. >=20 [Joe] In general the nonces should provide enough uniqueness. In any = case the text in the document can only be a guideline anyway. Some methods = may not authenticate both client and server. If they do the format of the identity must be clearly defined and I think this can only be done by = the method itself. =20 > The other question I had is what if there's a collision > among the different hash functions? I assume that such=20 > collisions would be rare for good quality hash functions, so=20 > normally this would not be a problem. But lets say someone=20 > deploys method X that uses SHA666, which is later discovered=20 > to be weak. So weak in fact that you can calculate the inputs=20 > that you need for a specific value. Would this enable anyone=20 > with an X account generate a key id that matches with someone=20 > else's keyid from method Y? And if so, would it matter? Lets=20 > think about this: >=20 > 1. If we mandate that client id is a part of the input, it > becomes a bit harder for the attacker to choose the right > input. But presumably it will still be possible to create > a matching key id based on varying the rest of the input, > such as the client nonce. >=20 > 2. This may be problematic if the bogus keyid now replaces > state reserved for the real key associated with the same > key id. >=20 > 3. The same would not be possible in the hash-less scheme, > because we required the inputs, such as method type, > to be present. >=20 > 4. However, this attack still requires (a) that there > exists a bad method with a bad hash function, and > (b) that someone's server is still accepting that > bad method and bad hash function. >=20 > 5. Having a bad hash function may also mean other things > for that server, such as ability to spoof authentication > without keys. >=20 > Conclusion: I worried a bit about 2 and 3 above, but > 4 and 5 seem to indicate that the only nodes affected > would be the clients of a server that still uses the > bad method for someone. So maybe its not a problem. > [Joe] I think the attack you outline above may not be possible with many methods since the server has a fair amount of control over what gets exchanged and hashed. If this is possible this would result in an authentication failure for the entity whose key was replaced. I think = this would be rare and I'm not too worried about it. Perhaps if we make the first byte indicate the type of hash function used that would help, or = we could add a few bytes and make it include the EAP method as well. I'm = not sure it is worth it.=20 =20 > --Jari >=20 _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 27 10:59:35 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA19202 for ; Tue, 27 Jul 2004 10:59:34 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id BD673214CB; Tue, 27 Jul 2004 10:45:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 36A47214C7; Tue, 27 Jul 2004 10:45:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 70805214C7 for ; Tue, 27 Jul 2004 10:44:23 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id C227D214C4 for ; Tue, 27 Jul 2004 10:44:21 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6REwfT1017906; Tue, 27 Jul 2004 10:58:41 -0400 (EDT) From: Nick Petroni To: Bernard Aboba Cc: Subject: Re: [eap] Re: Issue 251 In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 27 Jul 2004 10:58:41 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > > If this is correct, then it may be that the state machine > > needs some modification. OTOH, when I read -04 peer state > > machine, one of the required conditions to go into the FAILURE > > state is to have reqId == lastId. Since lastId has been initialized > > to NONE, it seems that an immediate Failure is not accepted > > by the current state machine. I'll take a closer look at the SM and make sure this is not allowed then. > I agree with Jari here. The text of RFC 3748 assumes that an EAP > conversation begins with a Request, which implies that a "canned" Failure > is not allowed. Can I ask what category 802.1X canned messages fall into? I guess they are just the use of EAP messages outside of the protocol? Or perhaps I misunderstand when they can occur. nick _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 27 11:12:10 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA20062 for ; Tue, 27 Jul 2004 11:12:10 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id CC89A214D6; Tue, 27 Jul 2004 10:54:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 485C0214D2; Tue, 27 Jul 2004 10:54:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 84C9B20BA7 for ; Tue, 27 Jul 2004 10:53:26 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 0EDBD20B7A for ; Tue, 27 Jul 2004 10:53:24 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6RF4Zk26084; Tue, 27 Jul 2004 08:04:35 -0700 From: Bernard Aboba To: Nick Petroni Cc: eap@frascone.com Subject: Re: [eap] Re: Issue 251 In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 27 Jul 2004 08:04:35 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > Can I ask what category 802.1X canned messages fall into? I guess they > are just the use of EAP messages outside of the protocol? Or perhaps I > misunderstand when they can occur. 802.1X "canned" messages are encapsulated EAP packets. So an 802.1X packet containing an EAP Success is expressly forbidden under RFC 3748, even though I think it is still mentioned in IEEE 802.1X-2004. Similarly, our discussion of whether "canned" EAP Failure is illegal also applies to "canned" 802.1X packets. _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 27 11:14:47 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA20324 for ; Tue, 27 Jul 2004 11:14:46 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 12119215D4; Tue, 27 Jul 2004 11:00:10 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A0A3F214D5; Tue, 27 Jul 2004 11:00:06 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id DB333214CC for ; Tue, 27 Jul 2004 10:59:08 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id 1C7D9214EA for ; Tue, 27 Jul 2004 10:59:05 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6RFDTT1018307; Tue, 27 Jul 2004 11:13:29 -0400 (EDT) From: Nick Petroni To: Bernard Aboba Cc: Subject: Re: [eap] Re: Issue 251 In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 27 Jul 2004 11:13:29 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) > 802.1X "canned" messages are encapsulated EAP packets. So an 802.1X > packet containing an EAP Success is expressly forbidden under RFC 3748, > even though I think it is still mentioned in IEEE 802.1X-2004. Similarly, > our discussion of whether "canned" EAP Failure is illegal also applies to > "canned" 802.1X packets. Ok, this was the source of my confusion. I guess I assumed that since they were in another standard they were going to be allowed for backwards compatibility or some other legacy argument. They are, indeed, still in the latest version, which was another source of my confusion. They are in the 802.1X SM diagrams, not just the text. Thanks, nick > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 27 14:27:37 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA04800 for ; Tue, 27 Jul 2004 14:27:36 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A1AAE1FF7C; Tue, 27 Jul 2004 14:13:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5506420877; Tue, 27 Jul 2004 14:13:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 7C3BB20877 for ; Tue, 27 Jul 2004 14:12:39 -0400 (EDT) Received: from zcamail03.zca.compaq.com (zcamail03.zca.compaq.com [161.114.32.103]) by mail.frascone.com (Postfix) with ESMTP id D4E971FF7C for ; Tue, 27 Jul 2004 14:12:37 -0400 (EDT) Received: from cacexg11.americas.cpqcorp.net (cacexg11.americas.cpqcorp.net [16.92.1.67]) by zcamail03.zca.compaq.com (Postfix) with ESMTP id 20AA9B34F; Tue, 27 Jul 2004 11:26:55 -0700 (PDT) Received: from cacexc07.americas.cpqcorp.net ([16.92.1.32]) by cacexg11.americas.cpqcorp.net with Microsoft SMTPSVC(6.0.3790.0); Tue, 27 Jul 2004 11:26:52 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [eap] Re: Issue 251 Message-ID: <85ECA15B7BB46944BFD4C73AEA55482448B562@cacexc07.americas.cpqcorp.net> Thread-Topic: [eap] Re: Issue 251 Thread-Index: AcRz7IhMEUhWrGrmSdS7T0H7FCcrCQAGpL3A From: "Congdon, Paul T (ProCurve)" To: "Nick Petroni" , "Bernard Aboba" Cc: X-OriginalArrivalTime: 27 Jul 2004 18:26:52.0867 (UTC) FILETIME=[4A054930:01C47407] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 27 Jul 2004 11:26:52 -0700 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable The 'canned' messages are only send when the 802.1X port is administratively forced authorized or unauthorized. This is basically when management turns off 802.1X and forces the port open or closed. These message are also discussed in the text. Paul=20 > -----Original Message----- > From: eap-admin@frascone.com [mailto:eap-admin@frascone.com]=20 > On Behalf Of Nick Petroni > Sent: Tuesday, July 27, 2004 8:13 AM > To: Bernard Aboba > Cc: eap@frascone.com > Subject: Re: [eap] Re: Issue 251 >=20 > > 802.1X "canned" messages are encapsulated EAP packets. So=20 > an 802.1X=20 > > packet containing an EAP Success is expressly forbidden under RFC=20 > > 3748, even though I think it is still mentioned in IEEE=20 > 802.1X-2004. =20 > > Similarly, our discussion of whether "canned" EAP Failure=20 > is illegal=20 > > also applies to "canned" 802.1X packets. > Ok, this was the source of my confusion. I guess I assumed=20 > that since they were in another standard they were going to=20 > be allowed for backwards compatibility or some other legacy=20 > argument. They are, indeed, still in the latest version,=20 > which was another source of my confusion. They are in the=20 > 802.1X SM diagrams, not just the text. >=20 > Thanks, > nick >=20 > > >=20 > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap >=20 _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 27 14:38:34 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA05623 for ; Tue, 27 Jul 2004 14:38:33 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E042021844; Tue, 27 Jul 2004 14:24:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id DBEEC214F3; Tue, 27 Jul 2004 14:24:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4491E214F3 for ; Tue, 27 Jul 2004 14:24:00 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id 9736720C4C for ; Tue, 27 Jul 2004 14:23:58 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6RIcMT1023277; Tue, 27 Jul 2004 14:38:23 -0400 (EDT) From: Nick Petroni To: "Congdon, Paul T (ProCurve)" Cc: Bernard Aboba , Subject: RE: [eap] Re: Issue 251 In-Reply-To: <85ECA15B7BB46944BFD4C73AEA55482448B562@cacexc07.americas.cpqcorp.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 27 Jul 2004 14:38:22 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Paul, Thanks for jumping in. The way I understand these messages is, I think, as you have described. Basically, if 802.1X is off, but the Peer comes in and sends an EAPoL Start, then the authenticator will immediately respond with an EAP Success or an EAP Fail without doing a run of the Identity method or an actual authentication method. Is this correct? If so, I *think* this would violate RFC3748 per Bernard's and Jari's comments. Any thoughts, corrections, or clarifications to my assessment? Thanks, nick Nick L. Petroni, Jr. Graduate Student, Computer Science Maryland Information Systems Security Lab University of Maryland http://www.cs.umd.edu/~npetroni On Tue, 27 Jul 2004, Congdon, Paul T (ProCurve) wrote: > > The 'canned' messages are only send when the 802.1X port is > administratively forced authorized or unauthorized. This is basically > when management turns off 802.1X and forces the port open or closed. > These message are also discussed in the text. > > Paul > > > -----Original Message----- > > From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] > > On Behalf Of Nick Petroni > > Sent: Tuesday, July 27, 2004 8:13 AM > > To: Bernard Aboba > > Cc: eap@frascone.com > > Subject: Re: [eap] Re: Issue 251 > > > > > 802.1X "canned" messages are encapsulated EAP packets. So > > an 802.1X > > > packet containing an EAP Success is expressly forbidden under RFC > > > 3748, even though I think it is still mentioned in IEEE > > 802.1X-2004. > > > Similarly, our discussion of whether "canned" EAP Failure > > is illegal > > > also applies to "canned" 802.1X packets. > > Ok, this was the source of my confusion. I guess I assumed > > that since they were in another standard they were going to > > be allowed for backwards compatibility or some other legacy > > argument. They are, indeed, still in the latest version, > > which was another source of my confusion. They are in the > > 802.1X SM diagrams, not just the text. > > > > Thanks, > > nick > > > > > > > > > _______________________________________________ > > eap mailing list > > eap@frascone.com > > http://mail.frascone.com/mailman/listinfo/eap > > > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 27 15:26:33 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA09267 for ; Tue, 27 Jul 2004 15:26:33 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E071F2057E; Tue, 27 Jul 2004 15:12:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 5AAAC21501; Tue, 27 Jul 2004 15:12:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A454221507 for ; Tue, 27 Jul 2004 15:11:14 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id D69402057E for ; Tue, 27 Jul 2004 15:11:12 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id BE16289846; Tue, 27 Jul 2004 22:25:35 +0300 (EEST) Message-ID: <4106AAE9.6080801@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "eap@frascone.com" Cc: Bernard Aboba Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] EAP WG agenda for IETF-60, take four Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 27 Jul 2004 22:20:09 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit (Corrected some of the URLs.) EAP WG IETF 60 San Diego, CA Wednesday, August 4, 2004 09:00 - 11:30 Chairs: Bernard Aboba Jari Arkko Preliminaries, 10 minutes ------------------------- Minutes & Bluesheets Agenda Bashing Document Status Base Protocols, 40 minutes -------------------------- EAP State Machine, TBD, 10 minutes Goal: Update on status (at the RFC editor queue, but some late review comments need discussion) http://www.ietf.org/internet-drafts/draft-ietf-eap-statemachine-04.pdf EAP Key Framework Draft, B. Aboba, 30 minutes Goal: Progress work. Discuss issues. Talk about current approach vs. draft-zorn differences. http://www.ietf.org/internet-drafts/draft-ietf-eap-keying-03.txt WLAN Requirements, 5 minutes ---------------------------- EAP Method Requirements for WLAN, B. Aboba, 5 minutes Goal: Update on status, discuss remaining issues if any http://www.ietf.org/internet-drafts/draft-walker-ieee802-req-02.txt Network selection, 25 minutes ----------------------------- EAP Network Selection Problem Statement, J. Arkko, 15 minutes Goal: Is the problem stated clearly, can we move this document forward? http://www.ietf.org/internet-drafts/draft-ietf-eap-netsel-problem-01.txt EAP Network Discovery, F. Adrangi, 10 minutes Goal: Review: Is this document OK from an EAP perspective? http://wwww.ietf.org/internet-drafts/draft-adrangi-eap-network-discovery-01.txt EAP methods, 35 minutes ----------------------- EAP methods publication process, Chairs, 5 minutes Goal: Review the current rules for EAP method publication. Shared-Key EAP methods, F. Bersani, 10 mins Goal: Talk about what shared key EAP methods exist or should exist http://wwww.ietf.org/internet-drafts/draft-bersani-eap-synthesis-sharedkeymethods-00.txt http://wwww.ietf.org/internet-drafts/draft-bersani-eap-psk-03.txt EAP PAX, T. Clancy, 10 mins Goal: Present a new EAP method "PAX", and talk about the authors' desires for IETF work on it. http://www.ietf.org/internet-drafts/draft-clancy-eap-pax-00.txt EAP TTLS, P. Funk, 10 mins Goal: Present a new protocol version of the EAP TTLS method, and talk about the authors' desires for IETF work on it. http://www.funk.com/documents/draft-ietf-pppext-eap-ttls-05.txt _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 27 15:59:34 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA10762 for ; Tue, 27 Jul 2004 15:59:33 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6EAB820772; Tue, 27 Jul 2004 15:45:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2A5DF21516; Tue, 27 Jul 2004 15:45:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 26A9221516 for ; Tue, 27 Jul 2004 15:44:39 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id D3A2F20772 for ; Tue, 27 Jul 2004 15:44:36 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6RJtmi10622 for ; Tue, 27 Jul 2004 12:55:48 -0700 From: Bernard Aboba To: eap@frascone.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Review of draft-groeting-eap-netselection-results-00.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 27 Jul 2004 12:55:48 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Review of draft-groeting-eap-netselection-results-00.txt Thank you for this draft. I think you bring up some interesting points about the "service selection" aspects of this problem, which isn't currently included in the Problem Statement document. For example, in Section 2.1 ,it is stated: " As already proposed in [I-D.adrangi-eap-network-discovery] the discovery of roaming agreements and mediating networks is a valuable access network information. This can be extended by other access network information elements like costs and charging, quality of service, authorization information, privacy policy and middlebox devices, which help the end host to make his attachment decision." This paragraph defines the problem as being about "helping the end host to make his attachment decision". In the current Problem Statement we only really talk about problems of Identification, Routing, Intermediary Network Selection, etc. Maybe we need to think more about the extent to which those decisions are intertwined with the "attachment decisions". To date, the "attachment decision" has been a lower layer issue. For example, 802.11 Beacon/Probe Response mechanisms enable the STA to learn about the AP capabilities, which can include security and QoS support, supported rates, PHY types, etc. Inherently information useful for making "attachment decisions" needs to be known *before* making those decisions. IEEE 802.11-2003 defines 3 states: state 1 (unauthenticated/unassociated), State 2 (authenticated/unassociated), and State 3 (authenticated/associated). As defined in the standard, within an ESS, data frames may only be sent within State 3 (within IBSS, they can be sent within state 1 if the "From DS" and "To DS" bits are set to zero). Given this, 802.11 cannot support sending of EAP/802.1X frames within state 1, except via pre-authentication. And since pre-authentication support is optional in 802.11i, even that may not always be available. Section 2: " To support more intelligent end host decisions, it seems to be beneficial to discover certain characteristics about the network up front during the association and authentication phase. Such information could include authentication models, roaming information, quality of service (see Appendix B) and cost parameters (see Appendix A)." Again in this paragraph you raise the issue of what information needs to be known "up front". To date, the Problem Statement has assumed that Network Discovery information could be discovered later, after Association, but this paragraph seems to imply that this assumption may not be correct. While "discovery" is something that a STA can engage in with multiple potential APs (via the Beacon/Probe Response mechanism), a successful Association-Request binds the STA to a single AP, so that Association or post-Association frames (such as 802.1X/EAP) cannot be part of the "discovery" function. In addition, IEEE 802.11i supports PMK caching and so EAP-based authentication may only occur on a fraction of all attachment changes, as you note. Section 2.1 "EAP is a generic container protocol that can - in theory - carry any information desired by the network (as long as both sides of the information exchange understand the information that they are receiving)." I'm not sure that this "theory" is supported by RFC 3748. For example, Section 6 states: " EAP is not intended as a general-purpose protocol, and allocations SHOULD NOT be made for purposes unrelated to authentication." Further on, it is stated: "If information can be carried in identity messages, then the end host can make further decisions based on it, before the full authentication procedure has been completed (and hence probably before accounting has started). This is particularly useful for the case of cost and service availability information." I think you are making the point that the STA needs information on the services available and cost prior to making a roaming decision. To date, roaming logic has not been specified within 802.11 standards, so this is breaking some new ground. Your statements relating to the frequency at which the information is needed are quite important, I think. EAP authentication is a high latency operation, so standards such as 802.11i envisage it being bypassed in many situations. Given this, EAP can't really be used for "discovery" of information which may change between APs, such as base AP capabilities. For example, a STA roaming within a single SSID may do EAP authentication once every few hours, but it may need to make roaming decisions very frequently. However, it is probably reasonable to assume that a STA will complete an EAP authentication upon changing networks. So in terms of evaluating EAP suitability, it's important to understand whether the factors you cite (costs, etc.) are expected to change *within* a network. Of course, the notion of network itself is somewhat shaky in 802.11, so that it could be argued that there really is no way to tell, since the SSID is non-unique anyway. " As already proposed in [I-D.adrangi-eap-network-discovery] the discovery of roaming agreements and mediating networks is a valuable access network information. This can be extended by other access network information elements like costs and charging, quality of service, authorization information, privacy policy and middlebox devices, which help the end host to make his attachment decision." This again brings up the central question you are raising, which is whether the Problem Statement for Discovery is really "helping the end host to make his attachment decision". If so, then the focus needs to be on mechanisms which can provide the required information prior to attachment. For the reasons I cited, I think this leads us either toward enabling use of 802.1X/EAP in State 1 (prior to Association, with "From DS" and "To DS" bits off) or towards a focus on non-EAP based solutions (either at the 802.11 or 802 layers). _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Tue Jul 27 18:21:47 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id SAA17899 for ; Tue, 27 Jul 2004 18:21:47 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id F345F21864; Tue, 27 Jul 2004 18:03:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id CC9192185F; Tue, 27 Jul 2004 18:03:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id E07552152B for ; Tue, 27 Jul 2004 18:02:31 -0400 (EDT) Received: from deneb.mtghouse.com (unknown [206.152.191.132]) by mail.frascone.com (Postfix) with SMTP id B2C0B202BE for ; Tue, 27 Jul 2004 18:02:29 -0400 (EDT) Received: (qmail 996 invoked from network); 27 Jul 2004 22:16:53 -0000 Received: from unknown (HELO mtghouse.com) (192.168.11.223) by srv.vpn.mtghouse.com with SMTP; 27 Jul 2004 22:16:53 -0000 Message-ID: <4106D458.1090801@mtghouse.com> From: Jim Burns User-Agent: Mozilla Thunderbird 0.5 (Windows/20040207) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Nick Petroni Cc: "Congdon, Paul T (ProCurve)" , Bernard Aboba , eap@frascone.com Subject: Re: [eap] Re: Issue 251 References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Tue, 27 Jul 2004 18:16:56 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Hi folks, I was just reading up on 'Success/Fail' packets in rfc3748 and found two things: 1. I do not believe that the .1XRev machine's behavior in the FORCE_AUTH and FORCE_UNAUTH will cause any interoperability issues. RFC 3748 is clear what to do: "By default, an EAP peer MUST silently discard a "canned" Success packet (a Success packet sent immediately upon connection). " [second paragraph, page 23, rfc3748]. This is good since I believe it is too late to make changes on 802.1XRev. 2. I do have a question...later on in the same section in RFC 3748 there is this text: "However, an authenticator MAY omit having the peer authenticate to it in situations where limited access is offered (e.g., guest access). In this case, the authenticator MUST send a Success packet. " [ second paragraph, page 24, rfc3748] Now...I probably missed something...but this seems to contradict the sentence I indicated in #1 above. It seems to say that the authenticator *can* omit the authentication to allow guest access and it must send a success packet...which according to #1 would appear as a 'canned success' and be discarded by the peer. If this were true then you could say that FORCE_AUTH and FORCE_UNAUTH states (in the 1XRev) implement this behavior locally in the NAS. I am concerned about this contradiction though. Did I miss something in the doc? Thanks, Jim B. Nick Petroni wrote: >Paul, > >Thanks for jumping in. The way I understand these messages is, I think, as >you have described. Basically, if 802.1X is off, but the Peer comes in and >sends an EAPoL Start, then the authenticator will immediately respond with >an EAP Success or an EAP Fail without doing a run of the Identity method >or an actual authentication method. Is this correct? If so, I *think* this >would violate RFC3748 per Bernard's and Jari's comments. Any thoughts, >corrections, or clarifications to my assessment? > >Thanks, >nick > >Nick L. Petroni, Jr. >Graduate Student, Computer Science >Maryland Information Systems Security Lab >University of Maryland >http://www.cs.umd.edu/~npetroni > >On Tue, 27 Jul 2004, Congdon, Paul T (ProCurve) wrote: > > > >>The 'canned' messages are only send when the 802.1X port is >>administratively forced authorized or unauthorized. This is basically >>when management turns off 802.1X and forces the port open or closed. >>These message are also discussed in the text. >> >>Paul >> >> >> >>>-----Original Message----- >>>From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] >>>On Behalf Of Nick Petroni >>>Sent: Tuesday, July 27, 2004 8:13 AM >>>To: Bernard Aboba >>>Cc: eap@frascone.com >>>Subject: Re: [eap] Re: Issue 251 >>> >>> >>> >>>>802.1X "canned" messages are encapsulated EAP packets. So >>>> >>>> >>>an 802.1X >>> >>> >>>>packet containing an EAP Success is expressly forbidden under RFC >>>>3748, even though I think it is still mentioned in IEEE >>>> >>>> >>>802.1X-2004. >>> >>> >>>>Similarly, our discussion of whether "canned" EAP Failure >>>> >>>> >>>is illegal >>> >>> >>>>also applies to "canned" 802.1X packets. >>>> >>>> >>>Ok, this was the source of my confusion. I guess I assumed >>>that since they were in another standard they were going to >>>be allowed for backwards compatibility or some other legacy >>>argument. They are, indeed, still in the latest version, >>>which was another source of my confusion. They are in the >>>802.1X SM diagrams, not just the text. >>> >>>Thanks, >>>nick >>> >>> >>> >>>_______________________________________________ >>>eap mailing list >>>eap@frascone.com >>>http://mail.frascone.com/mailman/listinfo/eap >>> >>> >>> >>_______________________________________________ >>eap mailing list >>eap@frascone.com >>http://mail.frascone.com/mailman/listinfo/eap >> >> >> > > >_______________________________________________ >eap mailing list >eap@frascone.com >http://mail.frascone.com/mailman/listinfo/eap > > > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From credmond_bt@worldonline.de Wed Jul 28 05:02:33 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id FAA15572 for ; Wed, 28 Jul 2004 05:02:33 -0400 (EDT) Received: from [218.107.0.177] (helo=arcada.fi) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1BpkMK-0002HG-O2 for eap-archive@ietf.org; Wed, 28 Jul 2004 05:04:26 -0400 To: eap-archive@ietf.org Message-ID: <65d101c47480$bbea8d6f$b5c4ac1f@ddxsuqcib> MIME-Version: 1.0 Subject: =?ISO-8859-1?B?SXMgaXQgYSBNaWNyby1DYXAgQm9uYW56YT8=?= From: "Carter Redmond" Date: Wed, 28 Jul 2004 08:57:26 +0000 Content-Type: text/plain Content-Transfer-Encoding: 8bit X-Spam-Score: 7.3 (+++++++) X-Spam-Flag: YES X-Scan-Signature: 3a4bc66230659131057bb68ed51598f8 Content-Transfer-Encoding: 8bit Breaking News Alert Special Biotech Alert Genex Pharmaceutical, Inc. (OTCBB: GENX) Revenues 3 months 3/31/04; $436,208 (Source: 8K Filed 6/29/04) News After the Close Press Release Source: Genex Pharmaceutical, Inc. Chinese FDA Approves Clinical Trials of Genex Pharmaceutical's New Dental Product Tuesday July 27, 5:42 pm ET NEW YORK--(BUSINESS WIRE)--July 27, 2004--Genex Pharmaceutical, Inc. (stock symbol: GENX; a Delaware corporation, is a profitable biomedical technology company with a unique product for treating various bone-related injuries called Reconstituted Bone Xenograft (RBX), which is a medical device approved by the SFDA (Chinese State Food and Drug Administration). RBX is suitable for compound or complex bone fractures, compression fractures and intractable fractures, bone defects, vertebral column or joint rehabilitation and for bone absence after tumor removal such as a bone cyst. The SFDA has approved clinical trials of the company's new product for dental applications, micro-particle RBX. The clinical trials will focus on orthodontic and periodontal procedures. Micro-particle RBX provides a minimally invasive technique that will improve dental surgery procedures and potentially accelerate recovery from surgeries. "Approval for clinical trials of micro-particle RBX is a significant step in the development and expansion of our product pipeline. We are extending our success of treating orthopedic surgical patients with RBX to the vast number of dental patients seeking minimally invasive technologies in orthodontic treatment," commented Mr. Fuzhi Song, Chairman and CEO of Genex. According to a National Dental Survey conducted by the PRC Ministry of Health, from 1995 to 1998, 570 million Chinese people suffer from advanced tooth decay, 80% of Chinese people over the age of 7 suffer from permanent tooth decay, 4% over 60 need gum treatment and 2% of the nation's over 40 population require dental grafting. About Genex Pharmaceutical, Inc. Genex Pharmaceutical, Inc. is a biomedical technology company with distinctive proprietary technology for an orthopedic device that treats bone-related injuries. Headquartered in Tianjin, China, the Company manufactures and distributes Reconstituted Bone Xenograft (RBX), to 400 hospitals in 22 provinces throughout mainland China. RBX is approved by the State Food and Drug Administration (SFDA) in China (the Chinese government agency that regulates drugs and medical devices). RBX offers a modern alternative to traditional methods of treating orthopedic injuries. Safe Harbor Statement Statements about the Company's future expectations, including future revenue and earnings and all other statements in this press release, other than historical facts, are "F0RWARD-looking" statements and are made pursuant to safe harbor provisions of the Securities Exchange Act of 1934. Such F0RWARD-looking statements involve risks and uncertainties and are subject to change at any time. 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Breaking News Alert does not represent that the information contained in this message states all material facts or does not omit a material fact necessary to make the statements therein not misleading.All information provided within this email pertaining to investing, stocks, securities must be understood as information provided and not investment advice. Breaking News Alert advises all readers and subscribers to seek advice from a registered professional securities representative before deciding to trade in stocks featured within this email. None of the material within this report shall be construed as any kind of investment advice or solicitation.Many of these companies are on the verge of bankruptcy. You can lose all your money by investing in this stock. The publisher of Breaking News Alert is not a registered investment ADVIS0R. Subscribers should not view information herein as legal, tax, accounting or investment advice. In compliance with the Securities Act of 1933, Section17(b), Breaking News Alert discloses the receipt of $7,000 from a third party (DMI, Inc.), not an officer, director or affiliate shareholder for the circulation of this report. Be aware of an inherent conflict of interest resulting from such compensation due to the fact that this is a paid advertisement. All factual information in this report was gathered from public sources, including but not limited to Company Websites, SEC Filings and Company Press Releases. Breaking News Alert believes this information to be reliable but can make no gua-rantee as to its accuracy or completeness. Use of the material within this email constitutes your acceptance of these terms. From eap-admin@frascone.com Wed Jul 28 10:59:17 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA05364 for ; Wed, 28 Jul 2004 10:59:16 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id F15B91FF15; Wed, 28 Jul 2004 10:43:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id BBC1020888; Wed, 28 Jul 2004 10:43:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 20BA520888 for ; Wed, 28 Jul 2004 10:42:20 -0400 (EDT) Received: from inet-tsb.toshiba.co.jp (inet-tsb.toshiba.co.jp [202.33.96.40]) by mail.frascone.com (Postfix) with ESMTP id 0C7401FF15 for ; Wed, 28 Jul 2004 10:42:18 -0400 (EDT) Received: from tsb-wall.toshiba.co.jp ([133.199.160.134]) by inet-tsb.toshiba.co.jp with ESMTP id i6SEudlr025204; Wed, 28 Jul 2004 23:56:39 +0900 (JST) Received: (from root@localhost) by tsb-wall.toshiba.co.jp id i6SEudBF006927; Wed, 28 Jul 2004 23:56:39 +0900 (JST) Received: from tis2 [133.199.160.66] by tsb-wall.toshiba.co.jp with SMTP id ZAA06926 ; Wed, 28 Jul 2004 23:56:39 +0900 Received: from mx2.toshiba.co.jp by tis2.tis.toshiba.co.jp id XAA25636; Wed, 28 Jul 2004 23:56:38 +0900 (JST) Received: from tsb-sgw.toshiba.co.jp by toshiba.co.jp id XAA26122; Wed, 28 Jul 2004 23:56:38 +0900 (JST) Received: from tsbpo1.po.toshiba.co.jp by tsb-sgw.toshiba.co.jp with ESMTP id i6SEubtq028078; Wed, 28 Jul 2004 23:56:37 +0900 (JST) Received: from steelhead ([172.30.24.114]) by tsbpo1.po.toshiba.co.jp (Sun Internet Mail Server sims.3.5.1999.01.13.19.49.p4) with ESMTP id <0I1K00HO3HI9SQ@tsbpo1.po.toshiba.co.jp>; Wed, 28 Jul 2004 23:56:36 +0900 (JST) Received: from ohba by steelhead with local (Exim 3.36 #1 (Debian)) id 1BppqU-0001WA-00; Wed, 28 Jul 2004 07:55:54 -0700 From: Yoshihiro Ohba Subject: Re: [eap] Re: Issue 251 In-reply-to: <4106D458.1090801@mtghouse.com> To: Jim Burns Cc: Nick Petroni , "Congdon, Paul T (ProCurve)" , Bernard Aboba , eap@frascone.com Message-id: <20040728145554.GD3945@steelhead> MIME-version: 1.0 Content-type: text/plain; charset=iso-2022-jp Content-disposition: inline User-Agent: Mutt/1.5.6+20040523i References: <4106D458.1090801@mtghouse.com> X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 28 Jul 2004 10:55:54 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Hi Jim, On Tue, Jul 27, 2004 at 06:16:56PM -0400, Jim Burns wrote: > Hi folks, > I was just reading up on 'Success/Fail' packets in rfc3748 > and found two things: > > 1. I do not believe that the .1XRev machine's behavior in > the FORCE_AUTH and FORCE_UNAUTH will cause any > interoperability issues. RFC > 3748 is clear what to do: "By default, an EAP peer MUST > silently discard a "canned" Success packet (a Success packet > sent immediately upon connection). " [second paragraph, page > 23, rfc3748]. This is good since I believe it is too late to make > changes on 802.1XRev. > > 2. I do have a question...later on in the same section in > RFC 3748 there is this text: > "However, an authenticator MAY omit having the peer > authenticate to it in situations where limited access is > offered (e.g., guest access). In this case, the authenticator > MUST send a Success packet. " [ second paragraph, page 24, > rfc3748] Now...I probably missed something...but this seems > to contradict the sentence I indicated in #1 above. It seems > to say that the authenticator *can* omit the authentication > to allow guest access and it must send a success > packet...which according to #1 > would appear as a 'canned success' and be discarded by the peer. If > this were true then you could say that FORCE_AUTH and > FORCE_UNAUTH states (in the 1XRev) implement this behavior > locally in the NAS. I think the text points to a case where the authenticator can sends Success message in response to Identity Response from the peer. So it would not appear as a canned success. Yoshihiro Ohba > > I am concerned about this contradiction though. Did I miss > something in the doc? > Thanks, > Jim B. > > > > Nick Petroni wrote: > > >Paul, > > > >Thanks for jumping in. The way I understand these messages is, I think, as > >you have described. Basically, if 802.1X is off, but the Peer comes in and > >sends an EAPoL Start, then the authenticator will immediately respond with > >an EAP Success or an EAP Fail without doing a run of the Identity method > >or an actual authentication method. Is this correct? If so, I *think* this > >would violate RFC3748 per Bernard's and Jari's comments. Any thoughts, > >corrections, or clarifications to my assessment? > > > >Thanks, > >nick > > > >Nick L. Petroni, Jr. > >Graduate Student, Computer Science > >Maryland Information Systems Security Lab > >University of Maryland > >http://www.cs.umd.edu/~npetroni > > > >On Tue, 27 Jul 2004, Congdon, Paul T (ProCurve) wrote: > > > > > > > >>The 'canned' messages are only send when the 802.1X port is > >>administratively forced authorized or unauthorized. This is basically > >>when management turns off 802.1X and forces the port open or closed. > >>These message are also discussed in the text. > >> > >>Paul > >> > >> > >> > >>>-----Original Message----- > >>>From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] > >>>On Behalf Of Nick Petroni > >>>Sent: Tuesday, July 27, 2004 8:13 AM > >>>To: Bernard Aboba > >>>Cc: eap@frascone.com > >>>Subject: Re: [eap] Re: Issue 251 > >>> > >>> > >>> > >>>>802.1X "canned" messages are encapsulated EAP packets. So > >>>> > >>>> > >>>an 802.1X > >>> > >>> > >>>>packet containing an EAP Success is expressly forbidden under RFC > >>>>3748, even though I think it is still mentioned in IEEE > >>>> > >>>> > >>>802.1X-2004. > >>> > >>> > >>>>Similarly, our discussion of whether "canned" EAP Failure > >>>> > >>>> > >>>is illegal > >>> > >>> > >>>>also applies to "canned" 802.1X packets. > >>>> > >>>> > >>>Ok, this was the source of my confusion. I guess I assumed > >>>that since they were in another standard they were going to > >>>be allowed for backwards compatibility or some other legacy > >>>argument. They are, indeed, still in the latest version, > >>>which was another source of my confusion. They are in the > >>>802.1X SM diagrams, not just the text. > >>> > >>>Thanks, > >>>nick > >>> > >>> > >>> > >>>_______________________________________________ > >>>eap mailing list > >>>eap@frascone.com > >>>http://mail.frascone.com/mailman/listinfo/eap > >>> > >>> > >>> > >>_______________________________________________ > >>eap mailing list > >>eap@frascone.com > >>http://mail.frascone.com/mailman/listinfo/eap > >> > >> > >> > > > > > >_______________________________________________ > >eap mailing list > >eap@frascone.com > >http://mail.frascone.com/mailman/listinfo/eap > > > > > > > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 28 11:01:48 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA05509 for ; Wed, 28 Jul 2004 11:01:47 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D7CD0215B9; Wed, 28 Jul 2004 10:47:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 599C420C1B; Wed, 28 Jul 2004 10:47:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id A89F1215AF for ; Wed, 28 Jul 2004 10:46:07 -0400 (EDT) Received: from ringding.cs.umd.edu (ringding.cs.umd.edu [128.8.129.2]) by mail.frascone.com (Postfix) with ESMTP id 8F6981FF15 for ; Wed, 28 Jul 2004 10:46:05 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by ringding.cs.umd.edu (8.12.10/8.12.5) with ESMTP id i6SF0VT1007095; Wed, 28 Jul 2004 11:00:31 -0400 (EDT) From: Nick Petroni To: Yoshihiro Ohba Cc: Jim Burns , "Congdon, Paul T (ProCurve)" , Bernard Aboba , Subject: Re: [eap] Re: Issue 251 In-Reply-To: <20040728145554.GD3945@steelhead> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 28 Jul 2004 11:00:30 -0400 (EDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Yoshihiro, > I think the text points to a case where the authenticator can sends > Success message in response to Identity Response from the peer. So > it would not appear as a canned success. Even if this were not canned, it seems to still violate the rule that a higher-layer authentication method must be run. Furthermore, Identity is always optional so what works with Identity should work without (IMHO). Perhaps I am missing some subtleties. Best, nick > > Yoshihiro Ohba > > > > > > I am concerned about this contradiction though. Did I miss > > something in the doc? > > Thanks, > > Jim B. > > > > > > > > Nick Petroni wrote: > > > > >Paul, > > > > > >Thanks for jumping in. The way I understand these messages is, I think, as > > >you have described. Basically, if 802.1X is off, but the Peer comes in and > > >sends an EAPoL Start, then the authenticator will immediately respond with > > >an EAP Success or an EAP Fail without doing a run of the Identity method > > >or an actual authentication method. Is this correct? If so, I *think* this > > >would violate RFC3748 per Bernard's and Jari's comments. Any thoughts, > > >corrections, or clarifications to my assessment? > > > > > >Thanks, > > >nick > > > > > >Nick L. Petroni, Jr. > > >Graduate Student, Computer Science > > >Maryland Information Systems Security Lab > > >University of Maryland > > >http://www.cs.umd.edu/~npetroni > > > > > >On Tue, 27 Jul 2004, Congdon, Paul T (ProCurve) wrote: > > > > > > > > > > > >>The 'canned' messages are only send when the 802.1X port is > > >>administratively forced authorized or unauthorized. This is basically > > >>when management turns off 802.1X and forces the port open or closed. > > >>These message are also discussed in the text. > > >> > > >>Paul > > >> > > >> > > >> > > >>>-----Original Message----- > > >>>From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] > > >>>On Behalf Of Nick Petroni > > >>>Sent: Tuesday, July 27, 2004 8:13 AM > > >>>To: Bernard Aboba > > >>>Cc: eap@frascone.com > > >>>Subject: Re: [eap] Re: Issue 251 > > >>> > > >>> > > >>> > > >>>>802.1X "canned" messages are encapsulated EAP packets. So > > >>>> > > >>>> > > >>>an 802.1X > > >>> > > >>> > > >>>>packet containing an EAP Success is expressly forbidden under RFC > > >>>>3748, even though I think it is still mentioned in IEEE > > >>>> > > >>>> > > >>>802.1X-2004. > > >>> > > >>> > > >>>>Similarly, our discussion of whether "canned" EAP Failure > > >>>> > > >>>> > > >>>is illegal > > >>> > > >>> > > >>>>also applies to "canned" 802.1X packets. > > >>>> > > >>>> > > >>>Ok, this was the source of my confusion. I guess I assumed > > >>>that since they were in another standard they were going to > > >>>be allowed for backwards compatibility or some other legacy > > >>>argument. They are, indeed, still in the latest version, > > >>>which was another source of my confusion. They are in the > > >>>802.1X SM diagrams, not just the text. > > >>> > > >>>Thanks, > > >>>nick > > >>> > > >>> > > >>> > > >>>_______________________________________________ > > >>>eap mailing list > > >>>eap@frascone.com > > >>>http://mail.frascone.com/mailman/listinfo/eap > > >>> > > >>> > > >>> > > >>_______________________________________________ > > >>eap mailing list > > >>eap@frascone.com > > >>http://mail.frascone.com/mailman/listinfo/eap > > >> > > >> > > >> > > > > > > > > >_______________________________________________ > > >eap mailing list > > >eap@frascone.com > > >http://mail.frascone.com/mailman/listinfo/eap > > > > > > > > > > > _______________________________________________ > > eap mailing list > > eap@frascone.com > > http://mail.frascone.com/mailman/listinfo/eap > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 28 11:18:57 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA06460 for ; Wed, 28 Jul 2004 11:18:56 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B979920C1B; Wed, 28 Jul 2004 11:04:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 6A7AC21018; Wed, 28 Jul 2004 11:04:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 4981F2101A for ; Wed, 28 Jul 2004 11:03:30 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 55A0A21018 for ; Wed, 28 Jul 2004 11:03:28 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6SFEaF12674 for ; Wed, 28 Jul 2004 08:14:37 -0700 From: Bernard Aboba To: eap@frascone.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Submission on RADIUS/EAP security vulnerabilities Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 28 Jul 2004 08:14:36 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) We have had a late submission relating to the practicality of exploiting vulnerabilities discussed in RFC 3579. Since the draft submission deadline has closed, the document is available for examination here: http://www.drizzle.com/~aboba/RADEXT/radius_vuln_00.txt _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Wed Jul 28 11:20:38 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA06531 for ; Wed, 28 Jul 2004 11:20:37 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id D07BA215C5; Wed, 28 Jul 2004 11:06:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 8503121018; Wed, 28 Jul 2004 11:06:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 428AC2101A for ; Wed, 28 Jul 2004 11:05:03 -0400 (EDT) Received: from inet-tsb.toshiba.co.jp (inet-tsb.toshiba.co.jp [202.33.96.40]) by mail.frascone.com (Postfix) with ESMTP id 10A1920C1B for ; Wed, 28 Jul 2004 11:05:01 -0400 (EDT) Received: from tsb-wall.toshiba.co.jp ([133.199.160.134]) by inet-tsb.toshiba.co.jp with ESMTP id i6SFJOlr002791; Thu, 29 Jul 2004 00:19:24 +0900 (JST) Received: (from root@localhost) by tsb-wall.toshiba.co.jp id i6SFJOul016648; Thu, 29 Jul 2004 00:19:24 +0900 (JST) Received: from tis2 [133.199.160.66] by tsb-wall.toshiba.co.jp with SMTP id AAA16647 ; Thu, 29 Jul 2004 00:19:24 +0900 Received: from mx2.toshiba.co.jp by tis2.tis.toshiba.co.jp id AAA02251; Thu, 29 Jul 2004 00:19:23 +0900 (JST) Received: from tsb-sgw.toshiba.co.jp by toshiba.co.jp id AAA08430; Thu, 29 Jul 2004 00:19:22 +0900 (JST) Received: from tsbpo1.po.toshiba.co.jp by tsb-sgw.toshiba.co.jp with ESMTP id i6SFJMtq008618; Thu, 29 Jul 2004 00:19:22 +0900 (JST) Received: from steelhead ([172.30.24.114]) by tsbpo1.po.toshiba.co.jp (Sun Internet Mail Server sims.3.5.1999.01.13.19.49.p4) with ESMTP id <0I1K00HQIIK6SJ@tsbpo1.po.toshiba.co.jp>; Thu, 29 Jul 2004 00:19:21 +0900 (JST) Received: from ohba by steelhead with local (Exim 3.36 #1 (Debian)) id 1BpqCd-0001bv-00; Wed, 28 Jul 2004 08:18:47 -0700 From: Yoshihiro Ohba Subject: Re: [eap] Re: Issue 251 In-reply-to: To: Nick Petroni Cc: Yoshihiro Ohba , Jim Burns , "Congdon, Paul T (ProCurve)" , Bernard Aboba , eap@frascone.com Message-id: <20040728151847.GG3945@steelhead> MIME-version: 1.0 Content-type: text/plain; charset=iso-2022-jp Content-disposition: inline User-Agent: Mutt/1.5.6+20040523i References: <20040728145554.GD3945@steelhead> X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Wed, 28 Jul 2004 11:18:47 -0400 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) On Wed, Jul 28, 2004 at 11:00:30AM -0400, Nick Petroni wrote: > Yoshihiro, > > > I think the text points to a case where the authenticator can sends > > Success message in response to Identity Response from the peer. So > > it would not appear as a canned success. > > Even if this were not canned, it seems to still violate the rule that a > higher-layer authentication method must be run. Furthermore, Identity is > always optional so what works with Identity should work without (IMHO). > Perhaps I am missing some subtleties. You are right. I should have said "Success message in response to Identity Response in a tunneling method". Yoshihiro Ohba > > Best, > nick > > > > > Yoshihiro Ohba > > > > > > > > > > I am concerned about this contradiction though. Did I miss > > > something in the doc? > > > Thanks, > > > Jim B. > > > > > > > > > > > > Nick Petroni wrote: > > > > > > >Paul, > > > > > > > >Thanks for jumping in. The way I understand these messages is, I think, as > > > >you have described. Basically, if 802.1X is off, but the Peer comes in and > > > >sends an EAPoL Start, then the authenticator will immediately respond with > > > >an EAP Success or an EAP Fail without doing a run of the Identity method > > > >or an actual authentication method. Is this correct? If so, I *think* this > > > >would violate RFC3748 per Bernard's and Jari's comments. Any thoughts, > > > >corrections, or clarifications to my assessment? > > > > > > > >Thanks, > > > >nick > > > > > > > >Nick L. Petroni, Jr. > > > >Graduate Student, Computer Science > > > >Maryland Information Systems Security Lab > > > >University of Maryland > > > >http://www.cs.umd.edu/~npetroni > > > > > > > >On Tue, 27 Jul 2004, Congdon, Paul T (ProCurve) wrote: > > > > > > > > > > > > > > > >>The 'canned' messages are only send when the 802.1X port is > > > >>administratively forced authorized or unauthorized. This is basically > > > >>when management turns off 802.1X and forces the port open or closed. > > > >>These message are also discussed in the text. > > > >> > > > >>Paul > > > >> > > > >> > > > >> > > > >>>-----Original Message----- > > > >>>From: eap-admin@frascone.com [mailto:eap-admin@frascone.com] > > > >>>On Behalf Of Nick Petroni > > > >>>Sent: Tuesday, July 27, 2004 8:13 AM > > > >>>To: Bernard Aboba > > > >>>Cc: eap@frascone.com > > > >>>Subject: Re: [eap] Re: Issue 251 > > > >>> > > > >>> > > > >>> > > > >>>>802.1X "canned" messages are encapsulated EAP packets. So > > > >>>> > > > >>>> > > > >>>an 802.1X > > > >>> > > > >>> > > > >>>>packet containing an EAP Success is expressly forbidden under RFC > > > >>>>3748, even though I think it is still mentioned in IEEE > > > >>>> > > > >>>> > > > >>>802.1X-2004. > > > >>> > > > >>> > > > >>>>Similarly, our discussion of whether "canned" EAP Failure > > > >>>> > > > >>>> > > > >>>is illegal > > > >>> > > > >>> > > > >>>>also applies to "canned" 802.1X packets. > > > >>>> > > > >>>> > > > >>>Ok, this was the source of my confusion. I guess I assumed > > > >>>that since they were in another standard they were going to > > > >>>be allowed for backwards compatibility or some other legacy > > > >>>argument. They are, indeed, still in the latest version, > > > >>>which was another source of my confusion. They are in the > > > >>>802.1X SM diagrams, not just the text. > > > >>> > > > >>>Thanks, > > > >>>nick > > > >>> > > > >>> > > > >>> > > > >>>_______________________________________________ > > > >>>eap mailing list > > > >>>eap@frascone.com > > > >>>http://mail.frascone.com/mailman/listinfo/eap > > > >>> > > > >>> > > > >>> > > > >>_______________________________________________ > > > >>eap mailing list > > > >>eap@frascone.com > > > >>http://mail.frascone.com/mailman/listinfo/eap > > > >> > > > >> > > > >> > > > > > > > > > > > >_______________________________________________ > > > >eap mailing list > > > >eap@frascone.com > > > >http://mail.frascone.com/mailman/listinfo/eap > > > > > > > > > > > > > > > _______________________________________________ > > > eap mailing list > > > eap@frascone.com > > > http://mail.frascone.com/mailman/listinfo/eap > > > _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From Tyrone73015@kufo.com Wed Jul 28 13:06:49 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id NAA16741; Wed, 28 Jul 2004 13:06:49 -0400 (EDT) Received: from 200-171-87-71.dsl.telesp.net.br ([200.171.87.71]) by ietf-mx.ietf.org with smtp (Exim 4.33) id 1Bprv3-0002RD-81; Wed, 28 Jul 2004 13:08:47 -0400 X-Message-Info: 80NKQAMd1910EGZoadaIAYUmwkg+2223958 Received: from dzlphy54842.mj.Tyrone73015@kufo.com ([178.26.230.204]) by gmy035-hlal.200.171.87.71 with Microsoft SMTPSVC(5.0.2195.6824); Wed, 28 Jul 2004 15:04:45 -0200 Message-ID: <92060$441TYK$5064@orlando-car-rental.com> Conversion-With-Loss: Yes Sensitivity: 8 Expiry-Date: Never Xref: qszygecelqndmhgxajlz Reply-To: "Ursula-Medrano" From: "Ursula-Medrano" To: iab-wireless-workshop@ietf.org Cc: seamoby@ietf.org, bpana@ietf.org, owner-ietf-outbound@ietf.org, entmib-request@ietf.org, xmldsig-archive@ietf.org, rmt-request@ietf.org, simple@ietf.org, eap-archive@ietf.org, r-wg-admin@ietf.org, ietf-123-outbound.02@ietf.org, rddp-web-archive@ietf.org, cfrg-request@ietf.org, sg@ietf.org Subject: New Account: $08491 Date: Wed, 28 Jul 2004 14:56:45 -0200 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--96994223117937933494" X-Spam-Score: 2.5 (++) X-Scan-Signature: 93238566e09e6e262849b4f805833007 ----96994223117937933494 Content-Type: text/html; charset="iso-0558-8" Content-Transfer-Encoding: 7Bit Hello,

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----8852290336410168109-- From RMUQEHT@mint.or.jp Wed Jul 28 22:29:23 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id WAA24872 for ; Wed, 28 Jul 2004 22:29:23 -0400 (EDT) Received: from host50.foretec.com ([65.246.255.50] helo=mx2.foretec.com) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1Bq0hX-0003fR-KN for eap-archive@ietf.org; Wed, 28 Jul 2004 22:31:25 -0400 Received: from [61.41.177.159] (helo=65.246.255.50) by mx2.foretec.com with smtp (Exim 4.24) id 1Bq0fZ-0002w4-Lr for eap-archive@ietf.org; Wed, 28 Jul 2004 22:29:22 -0400 X-Message-Info: 5HAE82YUg4GY5BpRxTK457mxEAC8hfyMHSksQAG64CUF81 Received: from B (80.42.75C.8D) by mailC1.RMUQEHT@mint.or.jp (Bluewin AG A.7.1C3) id 79DFDKDBEHKJD5ATMO156 for eamoby@ietf.org; Thu, 29 Jul 2004 01:27:16 -0200 Message-ID: Reply-To: "Enid Childress" From: "Enid Childress" To: "Eamoby" Subject: where the top funds are putting their money Date: Thu, 29 Jul 2004 02:29:16 -0100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--F35CE4BA1CCC11B" X-Spam-Score: 21.2 (+++++++++++++++++++++) X-Spam-Flag: YES X-Scan-Signature: b4a0a5f5992e2a4954405484e7717d8c ----F35CE4BA1CCC11B Content-Type: text/html; charset="iso-1499-7" Content-Transfer-Encoding: quoted-printable Untitled Document Private Investment Group with $BILLIONS TO BUY 20% of LETH
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=

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----F35CE4BA1CCC11B-- From eap-admin@frascone.com Thu Jul 29 06:31:46 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id GAA01089 for ; Thu, 29 Jul 2004 06:31:46 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 779B621132; Thu, 29 Jul 2004 06:17:09 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2E23420597; Thu, 29 Jul 2004 06:17:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id F25732052B for ; Thu, 29 Jul 2004 06:16:14 -0400 (EDT) Received: from mail-ic.fth.sbs.de (mail-ic.fth.sbs.de [194.138.39.45]) by mail.frascone.com (Postfix) with ESMTP id CAF43201C7 for ; Thu, 29 Jul 2004 06:16:12 -0400 (EDT) Received: from bchk006a.bch.siemens.de ([149.246.105.43]) by mail-ic.fth.sbs.de (8.11.7/8.11.7) with ESMTP id i6TAUd609854 for ; Thu, 29 Jul 2004 12:30:39 +0200 (MEST) Received: by bchk006a.bch.siemens.de with Internet Mail Service (5.5.2657.72) id ; Thu, 29 Jul 2004 12:30:37 +0200 Message-ID: <758E9863A7B26945B174BD445B1CA15CA05D6F@bchk999a.bch.siemens.de> From: Berg Stefan ICM Bocholt To: eap@frascone.com Subject: AW: [eap] Review of draft-groeting-eap-netselection-results-00.tx t MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 29 Jul 2004 12:30:37 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Thank you for your comments... Indeed we're looking at the Network Selection Problem from a kind of "Service Selection" point of view, which is not included in problem statement document. But, as you already mention, Service Selection is closely related to the "attachment decision" and thus to the analyzed problems of Identification, Routing, Intermediary Network Selection, = etc.=20 Obviously the information needed for the "attachment decision" has to = be known before the decision. This implies a lower layer solution. The = reason why we tried to include access network information in EAP is that EAP = is already widely deployed and would work for various technologies. On the other hand we see the problems with EAP concerning providing the = information in pre-association, latency and frequency, which needs further investigation. Looking for the trade-off between having a short term solution for network discovery and selection, and a long term solution = e.g. a modified 802.1x approach, an EAP extension could partly fill the gap. Maybe EAP is not the perfect solution, but a starting point to gain experience and develop a new generic method to exchange access network information.=20 To enable end hosts to make an efficient attachment decision, mechanism = to provide this information prior to attachment are needed. We agree on = your conclusion that either enabling use of 802.1X/EAP in State 1 or non-EAP based mechanisms (either at the 802.11 or 802 layers) could be a = possible solution. Thus we appreciate the ongoing discussion. Regards, Stefan > -----Urspr=FCngliche Nachricht----- > Von: Bernard Aboba [mailto:aboba@internaut.com]=20 > Gesendet: Dienstag, 27. Juli 2004 21:56 > An: eap@frascone.com > Betreff: [eap] Review of=20 > draft-groeting-eap-netselection-results-00.txt >=20 >=20 > Review of draft-groeting-eap-netselection-results-00.txt >=20 > Thank you for this draft. I think you bring up some=20 > interesting points about the "service selection" aspects of=20 > this problem, which isn't currently included in the Problem=20 > Statement document. >=20 > For example, in Section 2.1 ,it is stated: >=20 > " As already proposed in [I-D.adrangi-eap-network-discovery] the > discovery of roaming agreements and mediating networks is=20 > a valuable > access network information. This can be extended by other access > network information elements like costs and charging, quality of > service, authorization information, privacy policy and middlebox > devices, which help the end host to make his attachment decision." >=20 > This paragraph defines the problem as being about "helping=20 > the end host to make his attachment decision". In the=20 > current Problem Statement we only really talk about problems=20 > of Identification, Routing, Intermediary Network Selection,=20 > etc. Maybe we need to think more about the extent to which=20 > those decisions are intertwined with the "attachment decisions". >=20 > To date, the "attachment decision" has been a lower layer=20 > issue. For example, 802.11 Beacon/Probe Response mechanisms=20 > enable the STA to learn about the AP capabilities, which can=20 > include security and QoS support, supported rates, PHY types,=20 > etc. Inherently information useful for making "attachment=20 > decisions" needs to be known *before* making those decisions. >=20 > IEEE 802.11-2003 defines 3 states: state 1=20 > (unauthenticated/unassociated), State 2=20 > (authenticated/unassociated), and State 3=20 > (authenticated/associated). As defined in the standard,=20 > within an ESS, data frames may only be sent within State 3=20 > (within IBSS, they can be sent within state 1 if the "From=20 > DS" and "To DS" bits are set to zero). Given this, 802.11=20 > cannot support sending of EAP/802.1X frames within state 1,=20 > except via pre-authentication. And since pre-authentication=20 > support is optional in 802.11i, even that may not always be = available. >=20 > Section 2: >=20 > " To support more intelligent end host decisions, it seems to be > beneficial to discover certain characteristics about the network = up > front during the association and authentication phase. Such > information could include authentication models, roaming=20 > information, > quality of service (see Appendix B) and cost parameters=20 > (see Appendix > A)." >=20 > Again in this paragraph you raise the issue of what=20 > information needs to be known "up front". To date, the=20 > Problem Statement has assumed that Network Discovery=20 > information could be discovered later, after Association, but=20 > this paragraph seems to imply that this assumption may not be = correct. >=20 > While "discovery" is something that a STA can engage > in with multiple potential APs (via the Beacon/Probe Response=20 > mechanism), a successful Association-Request binds the STA to=20 > a single AP, so that Association or post-Association frames=20 > (such as 802.1X/EAP) cannot be part of the "discovery" function. >=20 > In addition, IEEE 802.11i supports PMK caching and so=20 > EAP-based authentication may only occur on a fraction of all=20 > attachment changes, as you note. >=20 > Section 2.1 >=20 > "EAP is a generic container protocol that can - in theory -=20 > carry any > information desired by the network (as long as both sides of the > information exchange understand the information that they are > receiving)." >=20 > I'm not sure that this "theory" is supported by RFC 3748. =20 > For example, Section 6 states: >=20 > " EAP is not intended as a general-purpose protocol, and = allocations > SHOULD NOT be made for purposes unrelated to authentication." >=20 > Further on, it is stated: >=20 > "If information can be carried in identity > messages, then the end host can make further decisions based on = it, > before the full authentication procedure has been completed (and > hence probably before accounting has started). This is=20 > particularly > useful for the case of cost and service availability information." >=20 > I think you are making the point that the STA needs=20 > information on the services available and cost prior to=20 > making a roaming decision. To date, roaming logic has not=20 > been specified within 802.11 standards, so this is breaking=20 > some new ground. >=20 > Your statements relating to the frequency at which the information is > needed are quite important, I think. EAP authentication is a high > latency operation, so standards such as 802.11i envisage it=20 > being bypassed in many situations. Given this, EAP can't=20 > really be used for "discovery" of information which may=20 > change between APs, such as base AP capabilities. >=20 > For example, a STA roaming within a single SSID may do EAP=20 > authentication once every few hours, but it may need to make=20 > roaming decisions very frequently. However, it is probably=20 > reasonable to assume that a STA will complete an EAP=20 > authentication upon changing networks. So in terms of=20 > evaluating EAP suitability, it's important to understand=20 > whether the factors you cite (costs, etc.) are expected to=20 > change *within* a network. >=20 > Of course, the notion of network itself is somewhat shaky in=20 > 802.11, so that it could be argued that there really is no=20 > way to tell, since the SSID is non-unique anyway. >=20 > " As already proposed in [I-D.adrangi-eap-network-discovery] the > discovery of roaming agreements and mediating networks is=20 > a valuable > access network information. This can be extended by other access > network information elements like costs and charging, quality of > service, authorization information, privacy policy and middlebox > devices, which help the end host to make his attachment decision." >=20 > This again brings up the central question you are raising,=20 > which is whether the Problem Statement for Discovery is=20 > really "helping the end host to make his attachment=20 > decision". If so, then the focus needs to be on mechanisms=20 > which can provide the required information prior to=20 > attachment. For the reasons I cited, I think this leads us=20 > either toward enabling use of 802.1X/EAP in State 1 (prior to=20 > Association, with "From DS" and "To DS" bits off) or towards=20 > a focus on non-EAP based solutions (either at the 802.11 or=20 > 802 layers). >=20 > _______________________________________________ > eap mailing list > eap@frascone.com > http://mail.frascone.com/mailman/listinfo/eap >=20 _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Thu Jul 29 13:58:38 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id NAA28314 for ; Thu, 29 Jul 2004 13:58:37 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3D66F2025B; Thu, 29 Jul 2004 13:44:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id CF05C2168E; Thu, 29 Jul 2004 13:44:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 568562168E for ; Thu, 29 Jul 2004 13:43:07 -0400 (EDT) Received: from p2.piuha.net (p2.piuha.net [131.160.192.2]) by mail.frascone.com (Postfix) with ESMTP id C3610213E8 for ; Thu, 29 Jul 2004 13:43:05 -0400 (EDT) Received: from piuha.net (p2.piuha.net [131.160.192.2]) by p2.piuha.net (Postfix) with ESMTP id B538A89841; Thu, 29 Jul 2004 20:57:31 +0300 (EEST) Message-ID: <41093941.5050204@piuha.net> From: Jari Arkko Reply-To: jari.arkko@piuha.net Organization: None User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7b) Gecko/20040316 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "eap@frascone.com" Cc: Bernard Aboba Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] presentations for IETF-60 Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Thu, 29 Jul 2004 20:52:01 +0300 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit If you are presenting in the EAP WG meeting at IETF-60, please send your slides to Bernard and myself. Thanks, --Jari _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From coiaacnmzthg@bl.uk Thu Jul 29 18:30:29 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id SAA14268 for ; Thu, 29 Jul 2004 18:30:29 -0400 (EDT) Received: from aay74.neoplus.adsl.tpnet.pl ([83.25.24.74]) by ietf-mx.ietf.org with smtp (Exim 4.33) id 1BqJS4-0004cj-1B for eap-archive@ietf.org; Thu, 29 Jul 2004 18:32:44 -0400 Received: from 8.200.30.28 by 83.25.24.74; Fri, 30 Jul 2004 01:17:45 +0200 Message-ID: From: "Hugo Cody" Reply-To: "Hugo Cody" To: eap-archive@ietf.org Subject: Refill your medication online! Date: Fri, 30 Jul 2004 00:20:45 +0100 X-Mailer: Internet Mail Service (5.5.2650.21) MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--161305254074427" X-Priority: 3 X-MSMail-Priority: Normal X-Spam-Score: 12.9 (++++++++++++) X-Spam-Flag: YES X-Scan-Signature: b7b9551d71acde901886cc48bfc088a6 ----161305254074427 Content-Type: text/html; Content-Transfer-Encoding: quoted-printable
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Vtaxonomic architectonic tobacco= correlate capacity statue whitman sideshow abstract beauregard griffith c= owpox buckwheat inflect carl substituent arcturus caution support rescue a= rhat risen crosswalk youngish downdraft=20.Shog condescension bartender mo= nies contradistinguish toxicology ceres pad torch lifespan shoot pork abra= sive=20,Xbrass metro babyhood wasserman administer depositor automaton cav= iar autopsy saucepan dora bred stool crow immortal clandestine cummins gre= ensboro mitral bungalow lightweight oat analgesic bad arhat cardiod enscon= ce upland gallstone=20;Iglutamic burro lottery distaff appellant carr hier= archal slid dianne distillate auditorium chalky c's designate berea caleb = lockian tift anecdotal curiosity gleason=20.Hastor conrail arden awaken mo= nday anatomy punk consequential dey beacon methodic coax birmingham grimal= di anaglyph tropospheric hornblower strategist affidavit promenade interse= ct atrophic miguel tor ada chemisorb drum egotist=20'Zpentecostal committe= ewomen louvre broadcast teenage faulty clothier beltsville collinear amade= us bialystok bivariate ektachrome bausch=20?Igoodwin dissonant calculus bu= tene geyser roach dance difficult arteriosclerosis needlework staid pinsch= er kleenex star scar rouge incompatible astronomy bruno seam bevy henchman= anteroom bookplate lizard nave sprang=20'Xvermont sherman accusation stit= ch poach subsist cetera shockley cathedral dang tyndall amy decaffeinate i= ntelligible madstone diety usgs mutandis blame offstage improvise sprocket= fable decedent cohesion licensee connie meager antacid=20!Caccreditation = airpark bruce atom anisotropic sultanate lovelorn tractor hayden buchwald = rhenium distaff citrate topography wilkins allure grit exorcism lifetime c= ommittal barberry schoolroom smolder=20.Vxylem augustan forbore alec appro= bation potion gourd camille cartridge slothful globe=20;Xblab eavesdropped= bench diary slimy mysterious armstrong denumerable capybara barbarian ind= escribable won't quaternary=20'Bhesitater immobile cavort bivouac bellini = anywhere skyward acceptant codomain ascend infusible pax telegraph unanimo= us compulsory america beneficent intransigent apologetic quadriceps biceps= combinatorial josephine filch ewing bagley ell contributory=20.Polympia n= azareth homebuild antaeus equivocate impiety nonchalant casual athens eaga= n background applicant plea snorkel bellingham sequester lamentation=20;Sa= bash perspicacious agent durrell snowmobile delphinus complaint passage=20= Dhaulage conakry hirsute cutoff recitative dutiable leapfrog explore chur= chillian cohen thief northumberland coequal doorbell eider reliant bathe e= questrian tolerant depth cohere gloat windsurf evade album chunky pharmace= utic sturgeon stylus=20.Ecompulsive doctorate nascent blister schottky cel= lophane deliquesce mane guardian geography burp fortran directrix porridge= health laity frozen virtuous trot cody redden soot=20?Nrectangle waterhou= se choke itch pitfall spiky momentary beach toefl bart wingtip falcon dora= avert reef giggle dinah=20.Cgranary parentage penetrable deaconess highbo= y bocklogged birdlike christendom laurence convergent fled transcend diplo= macy chaos coronado goldsmith contrary quaff hannibal limestone pinball ne= twork pellet dawson diplomatic jesus=20!Dresemble bold bedside blueberry a= stronomic chi statesmanlike slack doltish cutoff btl egan homeomorph alken= e appendage chiton contingent foe vulcan tough decade brake elysian perch = hotshot clung whatnot architectonic=20?Ksnorkel centrifugate anisotropy pr= opyl rutland crate smother methyl participle wellington hera dromedary lat= e wive philanthropic pianist magnesium practise cowpox=20!Vatlantica crypt= ographer hanukkah bessie donnybrook sleeve pincushion inflammation chlorin= e anastasia bailey teet incombustible morphemic nosebleed ghostlike prong = cofactor coincidental haley cottonwood pershing picnicker=20,Gpyrotechnic = don't intuitive caesar hardy advise chirp asteroid animadversion scintilla= te liable bogeymen bodybuilding pastel stalk cambric adorn hereinbelow leb= ensraum centaur deemphasize equanimity stonewort rivet demurrer=20'Imullig= an electron mauritius embassy paramount avenge eclectic astonish bali perm= itted division beheld unite=20;Lpoliceman irrelevant locale quarterback mo= ney museum beefsteak susanne boron burnish bradshaw tahoe grapheme alma co= ckle anamorphic leander scurrilous prosody systemic dairy alabama=20'Qme o= rigin trastevere anthracite ignite matron herein neutron attenuate wronski= an benzedrine tropic glycine=20;

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Breaking News Alert

Bodisen Biotech

0TCBB:BBOI

Earnings Released  Wednesday

2nd Qtr Sales up 29% to $4,230,205

Diluted Quarterly Earnings Per Share up 100% at $.12

The Good News Just Keeps on Coming for BBOI

 

 

Press Release Source: Bodisen Biotech, Inc.

Bodisen Biotech Announces $0.12 Per Share in Record Second Quarter Earnings, Net Income up 174% and Sees Strong Earnings Momentum for Remainder of 2004
Wednesday July 28, 4:00 pm ET

NEW YORK--(BUSINESS WIRE)--July 28, 2004--Bodisen Biotech, Inc. (stock symbol: BBOI,) announced financial results for its second quarter ending June 30, 2004. The following are some of the highlights:
  • Earnings of $0.12 per share doubled compared to Q2 2003;
  • 174% increase in net income for Q2 2004 compared to Q2 2003;
  • 86% increase in Gross Profit for Q2 2004 compared to Q2 2003;
  • Gross margin increased to 47% in Q2 2004 vs. 33% for Q2 2003; and
  • Corporate governance: Board consists of a majority of independent board members.

REVENUE

Bodisen generated revenues of $4,230,205 for the three months ended June 30, 2004 which represented an increase of $953,887 or 29% compared to $3,276,318 for the three months ended June 30, 2003. The increase in revenues is primarily attributable to expanded distribution channels, which resulted in increase in our customer base and related volume of recurring and new customer sales.

NET INCOME

Bodisen generated net income of $1,824,015 for the three months ended June 30, 2004, an increase of $1,157,321 or 174% compared to $666,694 for the three months ended June 30, 2003. The increase is attributed to the substantial growth in the demand for the Company's products throughout China and increased sales of products with higher profit margin in the period ended June 30, 2004.

GROSS PROFIT

Bodisen achieved a gross profit of $1,987,372 for the three months ended June 30, 2004, an increase of $921,498 or 86%, compared to $1,065,874 for the three months ended June 30, 2003. Gross margin, as a percentage of revenues, increased from 33% for the three months ended June 30, 2003, to 47% for the three months ended June 30, 2004. The increase in gross margin was primarily attributable to increased sales of products with a higher profit margin such as liquid fertilizers and pesticides, and an increase in purchase volume discounts for raw materials.

Ms. Qiong Wang, Chairman and CEO of Bodisen Biotech commented: "Our business is exceptionally strong and we had a great quarter, which reaffirms our strategy of expanding distribution channels, improving operating efficiency and selling higher margin products. Our distribution network now reaches customers in 20 provinces in China and Vietnam and continues to grow. Since the beginning of the 3rd quarter of 2004, the company continues to see robust demand for its products from customers throughout China. Company management expects strong earnings momentum for the rest of 2004."

Using proprietary technologies, Bodisen sells over 60 packaged products, broken down into three product categories: Organic Compound Fertilizer; Organic Liquid Fertilizer; and Organic Pesticides & Insecticides. Bodisen's organic fertilizers can be absorbed by plants within 48 hours while enriching soil conditions without the damaging effects associated with chemical fertilizers.

About Bodisen Biotech, Inc.

Bodisen is headquartered in Shaanxi, China, an agricultural hub of China and the economic gateway to the western regions of China. The Bodisen brand is a highly respected organic brand in China. Its "green" products support the mandate of the Chinese national government to increase crop yields for the purpose of decreasing China's dependency on food imports. Bodisen's products enjoy brand recognition and a price premium over competitive brands in China. With distribution in 20 provinces and an expanding geographic footprint, Bodisen is well positioned to take advantage of the growing demand for organic agricultural products in China

Safe Harbor Statement

This press release may contain forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These statements are based on the current expectations or beliefs of Bodisen Biotech, Inc. management and are subject to a number of factors and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. The following factors, among others, could cause actual results to differ materially from those described in the forward-looking statements: adverse weather conditions, historical seasonality, loss of customers, increased competition and other risks detailed from time to time in filings with the Securities and Exchange Commission. Consequently, if such management assumptions prove to be incorrect or such risks or uncertainties materialize, the Company's actual results could differ materially from the results forecast in the forward-looking statements.

Good Luck and Succesful Trading!

Information within this email contains "F0rward looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21B of the Securities Exchange Act of 1934. Any statements that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, goals, assumptions or future events or performance are not statements of historical fact and may be "forward looking statements."F0rward looking statements are based on expectations, estimates and projections at the time the statements are made that involve a number of risks and uncertainties which could cause actual results or events to differ materially from those presently anticipated. Forward looking statements in this action may be identified through the use of words such as "projects", "foresee", "expects", "will," "anticipates," "estimates," "believes," "understands" or that by statements indicating certain actions "may," "could," or "might" occur. There can be no assurance of that happening. The Growth Stock Report does not represent that the information contained in this message states all material facts or does not omit a material fact necessary to make the statements therein not misleading.All information provided within this email pertaining to investing, stocks, securities must be understood as information provided and not investment advice. The Growth Stock Report advises all readers and subscribers to seek advice from a registered professional securities representative before deciding to trade in stocks featured within this email. None of the material within this report shall be construed as any kind of investment advice or solicitation.Many of these companies are on the verge of bankruptcy. You can lose all your money by investing in this stock. The publisher of The Growth Stock Report is not a registered investment advis0r. Subscribers should not view information herein as legal, tax, accounting or investment advice. In compliance with the Securities Act of 1933, Section17(b), The Growth Stock Report discloses the receipt of seven thousand dollars from a third party, not an officer, director or affiliate shareholder of the company for the circulation of this report. Be aware of an inherent conflict of interest resulting from such compensation due to the fact that this is a paid advertisement. All factual information in this report was gathered from public sources, including but not limited to Company Websites, SEC filings and Company Press Releases. The Growth Stock Report believes this information to be reliable but can make no guar-antee as to its accuracy or completeness. Use of the material within this email constitutes your acceptance of these terms.

From eap-admin@frascone.com Fri Jul 30 08:22:59 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id IAA02176 for ; Fri, 30 Jul 2004 08:22:58 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id CF51F20DDA; Fri, 30 Jul 2004 08:06:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 3559621A4B; Fri, 30 Jul 2004 08:06:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B005821A47 for ; Fri, 30 Jul 2004 08:05:40 -0400 (EDT) Received: from p-mail1.rd.francetelecom.com (p-mail1.rd.francetelecom.com [195.101.245.15]) by mail.frascone.com (Postfix) with ESMTP id 4EBC520DDA for ; Fri, 30 Jul 2004 08:05:38 -0400 (EDT) Received: from parmhs4.rd.francetelecom.fr ([10.193.117.63]) by parsmtp2.rd.francetelecom.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 Jul 2004 14:20:02 +0200 Received: from [10.193.106.66] ([10.193.106.66]) by parmhs4.rd.francetelecom.fr with Microsoft SMTPSVC(5.0.2195.6747); Fri, 30 Jul 2004 14:20:00 +0200 Message-ID: <410A3D23.5070006@rd.francetelecom.fr> From: Florent Bersani User-Agent: Mozilla Thunderbird 0.7.2 (Windows/20040707) X-Accept-Language: en-us, en MIME-Version: 1.0 To: eap@frascone.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 30 Jul 2004 12:20:00.0172 (UTC) FILETIME=[88ABD6C0:01C4762F] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Comments and questions on draft-ietf-eap-keying-03.txt Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 30 Jul 2004 14:20:51 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: 7bit Hi all, Please find below my comments and questions on Extensible Authentication Protocol (EAP) Key Management Framework (draft-ietf-eap-keying-03.txt) which I refer to as KMF. They come in chronological order while reading the document and I have tried to priorize them (I put in *bold* the one I think are important). Hope this helps, Florent, at least you know the reactions of naive reader while reading the KMF ;-) Section 1 "Since in EAP keying material is generated by EAP methods, transported by AAA protocols, transformed into session keys by Secure Association Protocols and used by lower layer ciphersuites" Stricto sensu, I think we should rather say: "In EAP keying material is generated by EAP methods. Part of this keying material may be used by EAP methods themselves and part of this material may be exported. The exported keying material may be transported by AAA protocols or transformed by Secure Association Protocols into session keys which are used by lower layer ciphersuites." Section 1.2 <>"security association A set of policies and key(s) used to protect information. This information in the security association is stored by each party of the security association and must be consistent among the parties. Elements of a security association include cryptographic keys, negotiated ciphersuites and other parameters, counters, sequence spaces, authorization attributes, etc." Just for the record, in RFC 2401 we find: "A Security Association (SA) is a simplex "connection" that affords security services to the traffic carried by it." <>Here my point is that "set of policies and key(s)" conflicts with "Elements of a security association include cryptographic keys, negotiated ciphersuites and other parameters, counters, sequence spaces, authorization attributes, etc". My suggestion: "A set of policies and cryptographic state used to protect information and Elements of a security association may include cryptographic keys, negotiated ciphersuites and other parameters, counters, sequence spaces, authorization attributes, etc" Section 1.3.1 "Since discovery is handled outside of EAP, there is no need to provide this functionality within EAP." This might create confusion with EAP network discovery. Proposed resolution: "Since authenticator discovery is handled outside of EAP, there is no need to provide this functionality within EAP." Section 1.3.2 "For example, a peer completing mutual authentication with an EAP server will not send data traffic over the link until the EAP server has authenticated successfully to the peer, and a Secure Association has been negotiated." Just to make sure that we allow and are aware that security associations may use null transforms, e.g., when the peer authenticates over 802.3, typically after authentication, its traffic is sent in clear without any protection! I believe this is also frequent with PPP (although it is perfectly possible to protect the PPP traffic with ECP). So to me, it seems that the Unicast Secure Association (Phase 2a) is a way optional, isn't it? I don't like this phase being optional but it seems to reflect what may happen in the real world, doesn't it? Section 1.3.3 " The Secure Association phase (phase 2) always occurs after the completion of EAP authentication (phase 1a) and key transport (phase 1b)" If it occurs... see above. I recommend putting [3] "Generation of fresh transient session keys (TSKs)" before [1] Entity Naming.since [1] refers to TSKs which have not yet been defined in the document. Section 1.4.1 " Note that media independence may be retained within EAP methods that support channel binding or method-specific identification. An EAP method need not be aware of the content of an identifier in order to use it. This enables an EAP method to use media-specific identifiers such as MAC addresses without compromising media independence. To support channel binding, an EAP method can pass binding parameters to the AAA server in the form of an opaque blob, and receive confirmation of whether the parameters match, without requiring media-specific knowledge." This seems to be the proposed resolution of a point I raised in http://mail.frascone.com/pipermail/eap/2004-April/002427.html... I like it :-)! Section 1.4.3 " While EAP methods may negotiate the ciphersuite used in protection of the EAP conversation, the ciphersuite used for the protection of data is negotiated within the Secure Association Protocol, out-of-band of EAP." <>Perhaps clarify and say: " While EAP methods may negotiate the ciphersuite used in protection of the EAP conversation, the ciphersuite used for the protection of the data exchanged after EAP authentication has completed is negotiated within the Secure Association Protocol, out-of-band of EAP." <>"For example, PPP ciphersuite negotiation occurs in the Encryption Control Protocol (ECP) [RFC1968]. Since ECP negotiation occurs after authentication, unless an EAP method is utilized that supports ciphersuite negotiation, the peer, authenticator and backend authentication server may not be able to anticipate the negotiated ciphersuite and therefore this information cannot be provided to the EAP method. Since ciphersuite negotiation is assumed to occur out-of-band, there is no need for ciphersuite negotiation within EAP. For example, a peer might be pre-configured with policy indicating the ciphersuite to be used in communicating with a given authenticator. Within PPP, the ciphersuite is negotiated within the Encryption Control Protocol (ECP), after EAP authentication is completed. Within [IEEE80211i], the AP ciphersuites are advertised in the Beacon and Probe Responses, and are securely verified during a 4-way handshake exchange after EAP authentication has completed." I believe there is some redundancy here that makes things harder to understand. Proposed resolution: delete the second paragraph. Section 2.1 *"Extended Master Session Key (EMSK)* Additional keying material derived between the peer and server that is exported by the EAP method. The EMSK is at least 64 octets in length, and is never shared with a third party." <>I would like to better understand two things here: 1) "at least 64 octets": why not exactly 64 octets. 64 octets is already a lot of keying material and allowing multiple lengths for the EMSK leaves IMHO the door open for interoperability issues - A similar remark applies to the MSK. I guess we cannot do much as this has been included in RFC 3748 :-(, can we? 2) "and is never shared with a third party" I understand that this requirement comes from sound cryptographic practice that recommends that keys generally do not be shared among many parties but I am wondering here if by placing such a limitation on the EMSK we preclude efficient yet possibly secure schemes. I'll elaborate on this point in a separate post but I just wanted here to express my interrogation on this requirement. <>"Transient Session Keys (TSKs) Session keys used to protect data which are appropriate for the ciphersuite negotiated between the EAP peer and authenticator." <>Clarify with "Session keys used to protect data exchanged between the peer and the authenticator after the EAP authentication has successfully completed. TSKs are appropriate for the lower layer ciphersuite negotiated between the EAP peer and authenticator." Section 2.2 <>"Based on the long term credential established between the peer and the server, EAP derives four types of keys: [1] Keys calculated locally by the EAP method but not exported by the EAP method, such as the TEKs. [2] Keys exported by the EAP method: MSK, EMSK, IV [3] Keys calculated from exported quantities: AAA-Key, AMSKs. [4] Keys calculated by the Secure Association Protocol: TSKs." <>I am sure that it is not EAP that derive the TSKs [4]. I am not sure that EAP is really responsible for AAA-Key and AMSK derivation. Stricto sensu, TSKs are also derived from exported quantities. Proposed rewording: "Based on the long term credential established between the peer and the server, EAP derives two types of keys: [1] Keys calculated locally by the EAP method but not exported by the EAP method, such as the TEKs. [2] Keys exported by the EAP method: MSK, EMSK, IV From this keying material, two other types of keys may be derived: [3] Keys calculated directly from exported quantities: AAA-Key, AMSKs. [4] Keys calculated by the Secure Association Protocol from AAA-Key (and/or AMSKs?): TSKs." Section 2.3 <>I do not understand well the titles of [a] and [b]. Why not modify them to: [a] Secure key lifetime negotiation [b] Key resynchronization Section 2.3.1 *"They remain valid only for the duration of the EAP conversation, and are lost once the EAP conversation completes."* <>I find the requirement to delete the TEK hypocrite since if it is allowed to cache the TLS Master secret then IINM it is perfectly possible to rederive the TEK used by EAP-TLS for a particular conversation. So caching the TLS master secret is in a way more dangerous than caching the TEKs! Though this requirement again comes from sound cryptographic practice, I find it here to be too stringent: it can preclude fast reconnect schemes within EAP methods. I would sth like: "TEKs caching is allowed although doing so raises security concerns: [a] Insecure reuse of the TEK. The EAP method is responsible for ensuring that reusing the cached TEKs is done in a way that does not compromise security [b] Compromise of the TEKs. In case, the peer or the server are compromised. The TEKs they have cached may also be compromised. Keying material is sensitive and caching some require special security care." Section 2.3.2 "Attempting to manage the lifetime of the EAP-Key SA" This is the first time that the term EAP-Key SA is introduced and it has not been previously defined. Proposed resolution: insert a pointer to section 3.2. Section 2.3.3 "As a result, the lifetime of keys calculated from key material exported by EAP methods can be no larger than the lifetime of the exported keying material." <>I'd say ""As a result, the lifetime of keys calculated from key material exported by EAP methods cannot be larger than the lifetime of the exported keying material." but I am not a native English speaker... In general, I find this paragraph and section confusing and difficult to read. I'll work on refining why I get this feeling and I'll try to propose some resolution. IINM, it boils down to: it is difficult to negotiate key lifetimes and not much can be done, right? This makes me think of IKEv2 that has simply dropped key lifetime negotiation "A difference between IKEv1 and IKEv2 is that in IKEv1 SA lifetimes were negotiated. In IKEv2, each end of the SA is responsible for enforcing its own lifetime policy on the SA and rekeying the SA when necessary." Section 2.4 *"This key is created between the EAP peer and EAP server, and is uniquely named by the concatenation of the string "MSK", EAP Method Type, EAP peer name, EAP server name, EAP peer nonce, and the EAP server nonce."* <>This imposes that all EAP methods exchange two nonces (one from the peer and one from the server) and identify uniquely the parties (i.e., no "group key" for an EAP method). While this seems pretty natural, I do not remember any text in RFC 3748 placing such requirements on EAP methods. It is only recommended, e.g. in RFC 3748 section 7.10: "A RECOMMENDED method is for each party to provide a nonce of at least 128 bits, used in the derivation of the MSK and EMSK.". Seems like we are drifting from RECOMMENDED to MUST, aren't we? So as for the EAP state machine, if the KMF is informative (which I believe because I read "Category: informational" on the cover page of the KMF), we should make sure that we don't (normatively) exclude EAP methods (e.g. those that cannot name the MSK in the specified way). I bet this is worth more discussion. <>"AAA-Key Name The AAA-Key is named by the concatenation of the string "AAA-Key", the authenticator name (since the AAA-Key is bound to a particular authenticator), and the name of the key from which the AAA-Key is derived (MSK or AMSK Name)." In appendix E, AAA-Key is shown to be derived either from MSK or EMSK but not from AMSK... maybe we want to put more coherence here. Section 3 "[1] EAP method SA. This SA is between the peer and EAP server. It stores state that can be used for "fast resume" or other functionality in some EAP methods." RFC 3748 uses the term fast reconnect and not fast resume so my suggestion is to replace resume by reconnect here and in other occurrences of resume in the KMF document. <>" Contents: o Implicitly, the EAP method this SA refers to o One or more internal (non-exported) keys o EAP method SA name o SA lifetime" Proposed change: replace "o One or more internal (non-exported) keys" by "internal (non-exported) cryptographic state"... since this SA may store, for example, sequence counters and pseudonyms in addition to keys! Section 3.1.2 Although I very much like EAP-AKA, I am not sure that we want to create a dependency between a WG document and an individual Internet-Draft (however since the reference to EAP-AKA is informative, this perhaps no big deal). Furthermore, this quotation could be interpreted as an approval by the EAP WG of EAP-AKA. Proposed resolution: either remove this paragraph or have some discussion. Section 3.2 IIRC this has already been said (see Issue 215 http://www.drizzle.com/~aboba/EAP/eapissues.html#Issue%20215) but I am not sure that SA is an appropriate name for the EAP Key SA... but this is not vital and I cannot think of better wording. Section 3.3.1 "and to encrypt some attributes (such as the AAA-Key [RFC2548])" I am not sure that referencing directly RFC 2548 (Microsoft Vendor-specific RADIUS Attributes) is appropriate, perhaps RFC 3580 (which refers to RFC 2548 in its section 3.16) should also be mentioned instead? Section 3.4 " in IKE [RFC2409], the TSKs are bound to the IP addresses of the endpoints and he negotiated SPI." Since IKE is not a secure association protocol that (commonly) use EAP, I suggest either deleting this sentence or referring to IKEv2. Section 3.4.1 I suggest adding the obvious precision that: <>"PMKSA is the Root service SA PTKSA is a unicast service SA GTKSA is a multicast service SA" Section 4 " Within EAP" I'd rather say "with EAP" since for instance the first mechanism presented bypasses EAP ;-) Although I very much like section 4 (which reminds me of draft-aboba-802-context), I am not sure that it belongs to the key management framework as such. I guess more work is needed here to translate the clever but general considerations on handoff to precise recommendations on the management of the keys. Proposed resolution: only include in the KMF what is directly linked to key management (generation, transport and usage), put the rest of (nice) considerations on fast handoff in a separate document. Section 5.1 There is a trade off between being self-contained and brief... my view is that the definitions should not be restated but instead point to RFC 3748 (where they already appear IIRC) so sth like "cryptographic binding, cryptographic separation, key strength and mutual authentication are defined in RFC 3748 and are used with the same meaning here." Section 5.2 *"Domino effect"* I guess I'd like more discussion on this one, since it seems to preclude IMHO inter-authenticator protocols for fast handoff without communication with a AAA. Are we sure that we want this? Section 5.7 Let's be incoherent with my previous remark on EAP-AKA and suggest here to include a reference to draft-arkko-eap-service-identity-auth-00.txt. Section 6 *"This section summarizes the security requirements that must be met by EAP methods, AAA protocols, Secure Association Protocols and Ciphersuites in order to address the security threats described in this document. These requirements MUST be met by specifications requesting publication as an RFC"* <>This MUST does not sound like coming from an informational document, does it? Anyway, does the EAP WG have the power to impose those requirements on (general) AAA protocols, SA protocols and cipher suites requesting publication as an RFC? I don't think so... I guess we should wordsmith a little bit here. Section 6.1 "EAP methods export the MSK and EMSK and not Transient Session Keys" EAP does not even derive TSKs so how could it export them? "That is, knowledge of one substring MUST NOT help in recovering some other substring without breaking some hard cryptographic assumption." add non-overlapping after other and before substring ;-) *"The EMSK MUST remain on the EAP peer and EAP server where it is derived; it MUST NOT be transported to, or shared with, additional parties, or used to derive any other keys."* First I am not sure of this requirement and second, I guess we should have a clear definition of what another party is (e.g., we can have clusters of AAA for safe failover or we can have a wireless switch acting as a standalone authenticator that has multiple wireless termination points...) "The development and validation of key derivation algorithms is difficult, and as a result EAP methods SHOULD reuse well established and analyzed mechanisms for key derivation (such as those specified in IKE [RFC2409] or TLS [RFC2246]), rather than inventing new ones. EAP methods SHOULD also utilize well established and analyzed mechanisms for MSK and EMSK derivation." I find the last sentence redundant. Proposed resolution: delete it. Section 6.1.1 "The EMSK MUST be unique for each session" Do we have a definition of session? I guess it would be worth including one. I'll try and post some proposition. "The EAP mechanism SHOULD provide a way of naming the EMSK" What about the naming of the MSK? Appendix A "TKIP, which requires a single 128-bit encryption key and a 128-bit authentication key (used in both directions)" <>I believe that the following text is more precise: "TKIP, which requires a single 128-bit encryption key and a two 64-bit authentication keys (one for each direction)" " and WRAP, which requires a single 128-bit key (used in both directions)" Remove this sentence: WRAP has disappeared long ago ;-) Appendix B " master_secret = TLS term for the MK" MK is an old term that was in v2 of the KMF but has disappeared in this v3 so to be consistent it should be removed here, so should be its following occurrences. In appendix B, MK should simply be replaced by master_secret. Appendix E and F I think here there is some incoherence between these two appendixes: the EMSK is used for two different purposes: <>1) derivation of AAA-Keys "AAA-Key-B = PRF(EMSK(0,63),"EAP AAA-Key derivation for multiple attachments", AAA-Key-A,B-Called-Station-Id, Calling-Station-Id,length)" in appendix E 2) derivation of AMSKs "AMSK = KDF(EMSK, key label, optional application data, length)" in appendix F This needs to be fixed: more work is required. A possible fix would be to view AAA-Key as a specific AMSK... Appendix F.1 IIRC we had a discussion whether the prf used to derive AMSK should be mandated or could be negotiated (http://mail.frascone.com/pipermail/eap/2004-March/002384.html). There is a trade off between the two options (simplicity & interoperability are in favor of mandating one but not putting a mandatory requirement on peers and servers favors allowing negotiation). This is not reflected in the current appendix. I'd like some more discussion on the matter.... _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 30 13:36:38 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id NAA20971 for ; Fri, 30 Jul 2004 13:36:37 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id F0208201DA; Fri, 30 Jul 2004 13:22:07 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id C115D2122C; Fri, 30 Jul 2004 13:22:04 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 774192122C for ; Fri, 30 Jul 2004 13:22:00 -0400 (EDT) Received: from dns2.tilab.com (dns2.tilab.com [163.162.42.5]) by mail.frascone.com (Postfix) with ESMTP id DA2C7201DA for ; Fri, 30 Jul 2004 13:21:58 -0400 (EDT) Received: from iowa2k01b.cselt.it ([163.162.242.202]) by dns2.cselt.it (PMDF V6.1 #38895) id <0I1O00201DWPUC@dns2.cselt.it> (original mail from ruffino@XRR3.CSELT.IT) for eap@frascone.com; Fri, 30 Jul 2004 19:29:14 +0200 (MEST) Received: from iowa2k01b.cselt.it ([163.162.242.202]) by dns2.cselt.it (PMDF V6.1 #38895) with ESMTP id <0I1O0025BDWJFK@dns2.cselt.it> for eap@frascone.com; Fri, 30 Jul 2004 19:29:07 +0200 (MEST) Received: from EXC01A.cselt.it ([163.162.4.198]) by iowa2k01b.cselt.it with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 Jul 2004 19:34:07 +0200 From: Ruffino Simone Subject: [eap] Some comments on draft-groeting-netselection-results-00.txt To: Wolfgang.Groeting@siemens.com, Hannes.Tschofenig@siemens.com, Malte.Ness@bch.siemens.de, Stefan.Berg@siemens.com Cc: eap@frascone.com Message-id: MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.3790.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable Importance: normal Priority: normal Thread-Topic: [eap] Some comments on draft-groeting-netselection-results-00.txt Thread-Index: AcR2W7kA16eAeBHkTOKaon+S72u6hw== Content-class: urn:content-classes:message X-OriginalArrivalTime: 30 Jul 2004 17:34:07.0296 (UTC) FILETIME=[6A6EBC00:01C4765B] X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 30 Jul 2004 19:36:19 +0200 X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: quoted-printable Dear authors and all, Very useful draft: it helps understanding possibilities and problems of having additional information carried with EAP. I would like to better clarify some points. 1) You separate 'Roaming Agreements' and 'Mediating Networks' information element. From my point of view, they could be merged, since an Access Network, using MN advertising, implicitly tells the client that it holds an agreement with the advertised MNs. What kind of hint should RAs give to the client? 2) In my understanding of your draft, some information element (s.a. cost and QoS) can refer both to the Access Network and to Mediating Networks. But reading sec. 3.2 (Figure 2), it seems that all the additional info is related only to MNs : MN1--C1--RA1--etc. Can you clarify this ?=20 3) (in Sec. 3, implementation and testing ). What kind of tests do you performed on the testbed? What kind of scenario did you simulate ? I think it would be very useful to have someusage example. Is it worth including it in the draft (is it the right place ?) ? Regards, Simone Gruppo Telecom Italia - Direzione e coordinamento di Telecom Italia = S.p.A. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D CONFIDENTIALITY NOTICE This message and its attachments are addressed solely to the persons above and may contain confidential information. If you have received the message in error, be informed that any use of the content hereof is prohibited. Please return it immediately to the sender and delete the message. Should you have any questions, please send an e_mail to MailAdmin@tilab.com. Thank you =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From eap-admin@frascone.com Fri Jul 30 15:07:38 2004 Received: from mail.frascone.com (postfix@frascone.com [204.49.99.9]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA25431 for ; Fri, 30 Jul 2004 15:07:38 -0400 (EDT) Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 2BD1321A8B; Fri, 30 Jul 2004 14:53:08 -0400 (EDT) Received: from xavier (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id 1092121A87; Fri, 30 Jul 2004 14:53:05 -0400 (EDT) Delivered-To: eap@frascone.com Received: from localhost (xavier [127.0.0.1]) by mail.frascone.com (Postfix) with ESMTP id B0CAD21A85 for ; Fri, 30 Jul 2004 14:52:17 -0400 (EDT) Received: from internaut.com (h-66-167-171-107.sttnwaho.covad.net [66.167.171.107]) by mail.frascone.com (Postfix) with ESMTP id 96C4521A82 for ; Fri, 30 Jul 2004 14:52:15 -0400 (EDT) Received: from localhost (aboba@localhost) by internaut.com (8.10.2/8.10.2) with ESMTP id i6UJ3FT29054 for ; Fri, 30 Jul 2004 12:03:15 -0700 From: Bernard Aboba To: eap@frascone.com Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=X-UNKNOWN Content-Transfer-Encoding: QUOTED-PRINTABLE X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Subject: [eap] Request for Opportunity to Review IETF EAP and submission draft documents, July 2004 (fwd) Sender: eap-admin@frascone.com Errors-To: eap-admin@frascone.com X-BeenThere: eap@frascone.com X-Mailman-Version: 2.0.13 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: Discussion list for EAP List-Unsubscribe: , List-Archive: Date: Fri, 30 Jul 2004 12:03:15 -0700 (PDT) X-Virus-Scanned: by AMaViS 0.3.12 (frascone.com) Content-Transfer-Encoding: QUOTED-PRINTABLE ---------- Forwarded message ---------- Date: Wed, 21 Jul 2004 15:10:15 -0700 From: stuart.kerry@philips.com To: margaret@thingmagic.com Cc: aboba@internaut.com, Jari.Arkko@ericsson.com, apetrick@icefyre.com, hworstell@att.com, dstanley@agere.com Subject: Request for Opportunity to Review IETF EAP and submission draft documents, July 2004 From: Stuart J.Kerry, Chair IEEE 802.11 Working Group To: Margaret Wasserman, IETF Area Director, Internet Area, margaret@thingmagic.com CC: Bernard Aboba, Jari Arkko, EAP WG Chairs aboba@internaut.com Jari.Arkko@ericsson.com Title: Request for Opportunity to Review IETF EAP and submission draft documents, July 2004 Purpose: Request to Review Dear Margaret, The IEEE 802.11 Wireless Interworking with External Networks Study Group (WIEN SG) is investigating the changes needed to the IEEE 802.11 specification to support interworking with external non-IEEE 802.11 networks. Areas to be studied include access network discovery and identifier selection. Work underway within the IETF EAP WG is relevant to this work, specifically: 1) =93EAP Network Discovery and Selection Problem Description Document= =94 http://www.ietf.org/internet-drafts/draft-ietf-eap-netsel-problem-00.txt Also relevant is the solution proposed by: 2) =93Mediating Network Discovery and Selection=94 http://www.ietf.org/internet-drafts/draft-adrangi-eap-network-discovery-an d-selection-01.txt IEEE 802.11 requests the opportunity to review the above-mentioned documents, as the information contained within said documents is essential to the future work of the WIEN SG. We have previously agreed to coordinate review of areas of mutual interest, as mentioned in document reference 11-04-0166-00-0000-ieft-ieee-802-11-meeting-summary.ppt. It is expected that the output of this review, will take the form of a document, which may subsequently be submitted to the IETF as an individual RFC submission. For IETF reference, ANSI/IEEE Std 802.11=D2-1999 (2003 Reaffirmation) edition as amended by IEEE Std 802.11g-2003 and IEEE Std. 802.11h-2003 is the current version of the IEEE 802.11 Standard. Please contact Stuart J.Kerry, IEEE 802.11 Working Group Chair together with Stephen McCann, IEEE 802.11 WIEN SG chair and Dorothy Stanley, IEEE 802.11/IETF Liaison with any questions, and to discuss further IETF follow-up. Best Regards, Stuart J. Kerry Contact information: Stuart J Kerry stuart.kerry@philips.com +1 408 474 7356 Stephen McCann stephen.mccann@roke.co.uk +44 1794 833341 Dorothy Stanley dstanley@agere.com +1 630 979 1572 -------------------------------------------------------------------------- ---------- _______________________________________________ eap mailing list eap@frascone.com http://mail.frascone.com/mailman/listinfo/eap From OXMDYIIOK@msn.com Fri Jul 30 20:28:27 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id UAA11375; Fri, 30 Jul 2004 20:28:27 -0400 (EDT) Received: from host50.foretec.com ([65.246.255.50] helo=mx2.foretec.com) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1Bqhm0-0008Rv-Tb; Fri, 30 Jul 2004 20:30:54 -0400 Received: from [211.38.54.107] (helo=65.246.255.50) by mx2.foretec.com with smtp (Exim 4.24) id 1Bqhja-0005AH-Jz; Fri, 30 Jul 2004 20:28:23 -0400 Received: from 145.79.72.124 by 211.38.54.107; Sat, 31 Jul 2004 00:19:13 -0100 Message-ID: From: "Anita Luna" Reply-To: "Anita Luna" To: diffserv-interest@ietf.org Subject: We are waiting to give you your l0an Date: Fri, 30 Jul 2004 19:28:13 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--843409419199845125" X-Webmail-Time: Sat, 31 Jul 2004 02:23:13 +0100 X-Spam-Score: 22.8 (++++++++++++++++++++++) X-Spam-Flag: YES X-Scan-Signature: de4f315c9369b71d7dd5909b42224370 ----843409419199845125 Content-Type: text/html; Content-Transfer-Encoding: quoted-printable Hey, Bad Credit? 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Check it out here, you wont be sorry ----843409419199845125-- From VLCYVAUL@yahoo.com Sat Jul 31 14:57:03 2004 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA10725; Sat, 31 Jul 2004 14:57:03 -0400 (EDT) Received: from host50.foretec.com ([65.246.255.50] helo=mx2.foretec.com) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1Bqz52-0003tW-2x; Sat, 31 Jul 2004 14:59:40 -0400 Received: from [220.76.253.24] (helo=65.246.255.50) by mx2.foretec.com with smtp (Exim 4.24) id 1Bqz2S-0006mM-3v; Sat, 31 Jul 2004 14:57:00 -0400 Received: from 55.85.103.192 by 220.76.253.24; Sat, 31 Jul 2004 20:54:44 +0100 Message-ID: From: "Rosanna Taylor" Reply-To: "Rosanna Taylor" To: rmt-request@ietf.org Subject: Get a real degree online! Date: Sun, 01 Aug 2004 01:52:44 +0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="--83766761687598047181" X-Webmail-Time: Sat, 31 Jul 2004 13:50:44 -0600 X-Spam-Score: 14.0 (++++++++++++++) X-Spam-Flag: YES X-Scan-Signature: 8abaac9e10c826e8252866cbe6766464 ----83766761687598047181 Content-Type: text/html; Content-Transfer-Encoding: quoted-printable P u

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