I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please wait for direction from your document shepherd or AD before posting a new version of the draft. For more information, please see the FAQ at . Document: draft-ietf-curdle-rsa-sha2-10 Reviewer: Russ Housley Review Date: 2017-09-01 IETF LC End Date: 2017-09-11 IESG Telechat date: unknown Summary: Almost Ready Major Concerns: None Minor Concerns: I think that a better title for this document would be: Use of RSA Keys with SHA-256 and SHA-512 in Secure Shell (SSH) These are two of the hash function in the SHA2 family, and there is no ambiguity about them being part of the SHA3 family. Similarly, I think that the Abstract and Section 1 should explicitly names these two hash functions. The current wording seems to include SHA-224 and SHA-384, and that is not the intent of the author. In Section 3, I suggest: s/using SHA-2 [SHS] as hash./using SHA-256 or SHA-512 [SHS] as hash./ s/the hash used is SHA-2 256./the hash used is SHA-256./ s/the hash used is SHA-2 512./the hash used is SHA-512./ Note: I did not propose changing the strings in case people have already implemented against this specification. If no one has implemented yet, then I would change those too. Section 5.1 should be expanded to say that following the NIST advice on key sizes and SHA-1 outside the US Government is prudent. Nits: None