[Bug 1580] [PATCH] HMAC should use sha1 instead of md5 by default

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=1580


Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
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                 CC|                            |djm at mindrot.org




--- Comment #1 from Damien Miller <djm at mindrot.org>  2009-03-30 17:00:37 ---
I don't think there is any strong reason to switch from HMAC-MD5 yet;
HMAC-MD5 is not affected by the recent-ish MD5 bugs and SSH's use of
the MAC would much more difficult to exploit still (there is no
length-extension that can be performed). See
http://www.ietf.org/mail-archive/web/cfrg/current/msg01196.html for an
opinion by a real cryptographer. 

If we do change, it will probably be to umac-64 at openssh.com as first
preference MAC, and that will be as much for performance reasons as
anything else.

(Please note: "appeasing clueless auditors" is not a reason we will
ever respond to).

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