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The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:10:58
Bruce Schneier (schneier@counterpane.com)
Mon, 17 Aug 1998 21:12:13 -0500
Results Announcement:
N. Ferguson, , "Upper Bounds on Differential Characteristics in Twofish," Twofish Technical Report #1, Counterpane Systems, Aug 1998.
Abstract:
In our initial paper the Twofish block cipher was introduced, and initial estimates of an upper bounds on the probability of a 12-round differential were given. These results used an imperfect model of Twofish. We present an improved model, and show that any 12-round differential characteristic has a probability of at most $2^{-102.8}$.
This paper is available at http://www.counterpane.com/twofish.html, and will be made available
at the AES Workshop next week.
Cheers,
Bruce
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Bruce Schneier, President, Counterpane Systems Phone: 612-823-1098
101 E Minnehaha Parkway, Minneapolis, MN 55419 Fax: 612-823-1590
Free crypto newsletter. See: http://www.counterpane.com
The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:10:58