Re: SHA-2 based HMAC algorithm...

[Peter Gutmann <pgut001%cs.auckland.ac.nz@localhost>]

"Mark D. Baushke" <mdb%juniper.net@localhost> writes:

>For the secure shell protocol, I have seen these macs:
>
>  hmac-sha256-2%ssh.com@localhost
               ^
I've heard of two-bit security mechanisms, but I've never seen one used in an
actual protocol before.

>but there may be other folks who are adding their own extension too.

Give that SHA-2 is becoming more widespread, perhaps we need a quick RFC, or
at least an ad-hoc implementers agreement, on naming for this before we get
dozens of hmac-sha256%bobs-pizza-shack.com@localhost extensions.

Peter.