I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG.  These comments were written primarily for the benefit of the security area directors.  Document editors and WG chairs should treat these comments just like any other last call comments.   I found the Introduction section particularly useful and informative.  The security considerations seem complete and accurate.   In my view, this document is * Ready *   --  Senior Architect, Akamai Technologies Member, OpenSSL Dev Team IM: richsalz at jabber.at Twitter: RichSalz