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Re: how to phase in new hash algorithms?

daemon@ATHENA.MIT.EDU (Dan Kaminsky)
Fri Mar 25 09:43:57 2005

X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Mon, 21 Mar 2005 11:46:25 -0800
From: Dan Kaminsky <dan@doxpara.com>
To: "Steven M. Bellovin" <smb@cs.columbia.edu>
Cc: cryptography@metzdowd.com
In-Reply-To: <20050316170201.2BC253C04DC@berkshire.machshav.com>

Steven M. Bellovin wrote:

>We all understand the need to move to better hash algorithms than SHA1. 
>At a minimum, people should be switching to SHA256/384/512; arguably, 
>Whirlpool is the right way to go.  The problem is how to get there from 
>here.
>  
>
I've been rather continually pinging people, asking them for an
explanation as to the design decisions of Whirlpool (namely -- it's
similar but noticably not identical to AES/Rijndael, and isn't just a
straightforward expansion of the block size up to 512 bits).  I'm not
saying anything bad about Whirlpool, but I get alot of people
approaching me about the hash and I don't really know what to tell them.

--Dan


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