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HMAC?

daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Mon Aug 16 22:30:50 2004

X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
To: cryptography@metzdowd.com
From: "Perry E. Metzger" <perry@piermont.com>
Date: Mon, 16 Aug 2004 22:29:24 -0400


So the question now arises, is HMAC using any of the broken hash
functions vulnerable?

I can't answer that myself yet since I haven't given it a good enough
think, but I'll will point people at the original HMAC paper at:

http://www.research.ibm.com/security/keyed-md5.html

The paper itself is at:

http://www.research.ibm.com/security/bck2.ps


Perry

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