Re: Some empirical results of random S-boxes
Date: Wed, 22 Sep 2004 12:27:54 +0200
Mok-Kong Shen wrote:
> David A. Scott wrote:
>> I think S boxes especially single cycle S boxes are good for crypto
>> Check out my encryption code it used every possible 19 bit single
>> cycle S box your choice.
> I could attempt to check your conjecture on (8-bit S-boxes),
> i.e. whether single clcle or not makes an essential difference.
> (It would take a little bit time, though.)
Addendum: Could you tell how did you generate your single
cycle permutations? I like to apply the same methodology
in order to avoid having differences in generation methods
eventually create sort of 'bias' (artefacts) in the results
of comparison between the effects of arbitrary and single-cycle
permutations on the quality of S-boxes. Thanks.
M. K. Shen
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