On Wednesday, January 18, 2006 06:39:26 PM +0100 denis bider <ietf-ssh%denisbider.com@localhost> wrote:
Hi all, am I the only one who can't find KEXDH message numbers defined anywhere in the now published SSH RFCs? Given that KEXDH is a required key exchange method, I'd expect those message numbers to be defined in the Transport RFC. Yet, when I looked I couldn't find the actual message numbers defined. Is this just my oversight or is it everyone else's? :-)
Oops. Indeed, those numbers were removed during editing, as a result of what appears to have been some confusion. Someone commented during AUTH48 that they should be removed from assignednumbers (now RFC4250), because they were in the method-specific space and thus didn't need to be (and shouldn't be) in the message number registry.
Unfortunately, they also got dropped from -transport, where the method is actually defined. As a result, these definitions are missing from the protocol suite entirely, which I expect makes it tricky to implement. :-)
The correct numbers are these:
SSH_MSG_KEXDH_INIT 30
SSH_MSG_KEXDH_REPLY 31
I think we need an RFC Errata on this one... :-( BTW, for those who've been looking for it and can't find it, the SSH paramaters registry is at http://www.iana.org/assignments/ssh-parameters. It seems the IANA hasn't yet published a link to that. -- Jeff