DES w/ variable S-boxes
Are there any implementations of DES-variants that use variable S-boxes? I've not seen any, and it seems to me that such an algorithm could be quite strong, considering the continuing strength of DES (i.e., only the rich or large gov'ts are likely to be able to break it today, and only by brute force). If not, is there likely to be enough demand that I should start coding? b& -- Ben.Goren@asu.edu, Arizona State University School of Music net.proselytizing (write for info): Protect your privacy; oppose Clipper. Voice concern over proposed Internet pricing schemes. Stamp out spamming. Finger ben@tux.music.asu.edu for PGP 2.3a public key.
Date: Wed, 15 Jun 1994 17:32:24 -0700 From: Ben.Goren@asu.edu Are there any implementations of DES-variants that use variable S-boxes? Well, if you don't use the DES S-boxes then it isn't DES :-) Variable boxes tend to weaken DES. The DES S-boxes were chosen to make differential cryptanalysis difficult. Random S-boxes don't tend to have this desirable property. Use IDEA. Rick
participants (2)
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Ben.Goren＠asu.edu -
Rick Busdiecker