From: Bruce Schneier <schneier@counterpane.com>
Date: Wed, 1 Apr 1998 06:23:56 -0800 (PST)
To: cypherpunks@toad.com
Subject: Re: 3DES Weakness
In-Reply-To: <199804010054.QAA07423@comsec.com>
Message-ID: <199804011423.IAA16093@mixer.visi.com>
MIME-Version: 1.0
Content-Type: text/plain


The NYT article is way overblown; the attack is only
against the particular mode in the standard and requires
something like 2^64 texts.  It's great work, but not a
very practical attack.

At 07:44 AM 3/31/98 -0500, John Young wrote:
>NYT-Markoff reports today on Biham and Knudsen's paper
>on 3DES weakness, "Cryptanalysis of the ANSI X9.52 
>CBCM Mode," noted here a few days ago.
>
>The ANSI X9.F1 committee has held up implementing its
>standard as a result, and may have to wait for AES. 
>Credit is given to the worldwide DES crack.
>
>   http://www.nytimes.com
>
>See a mirror:
>
>   http://jya.com/3des-weak.htm
>
>Get the Biham/Knudsen paper:
>
>  http://www.cs.technion.ac.il/%7Ebiham/publications.html
> 
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