1998-05-12 - Bitslice DES S-boxes

Header Data

From: mkwan@preston.net (Matthew Kwan)
To: rcv@dopey.verser.frii.com
Message Hash: 860328275e8e6ed4ed45c42f3c4e1e2675f0a59fe7309b316ebf85621ee693cd
Message ID: <199805122341.JAA18008@preston-gw.preston.net>
Reply To: N/A
UTC Datetime: 1998-05-12 23:42:35 UTC
Raw Date: Tue, 12 May 1998 16:42:35 -0700 (PDT)

Raw message

From: mkwan@preston.net (Matthew Kwan)
Date: Tue, 12 May 1998 16:42:35 -0700 (PDT)
To: rcv@dopey.verser.frii.com
Subject: Bitslice DES S-boxes
Message-ID: <199805122341.JAA18008@preston-gw.preston.net>
MIME-Version: 1.0
Content-Type: text/plain

After 6 weeks of number crunching, I've finally produced a new set of
bitslice DES S-boxes using non-standard logic gates.

Numbers are as follows -

	S1  S2  S3  S4  S5  S6  S7  S8   Avg
	56  50  53  39  56  53  51  50   51

Details at http://www.cs.mu.oz.au/~mkwan/bitslice

There won't be any more improvements in the foreseeable future, since
I've run out of ideas.

Feel free to use this code in the RSA DES II challenge, but remember to
give credit where it's due.