International Association for Cryptologic Research

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The CSQUARE Transform

Authors:
Tom St Denis
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URL: http://eprint.iacr.org/2004/026
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Abstract: In this paper we show how to combine the design concepts of the SQUARE and CS block ciphers to produce a pseudo-random permutation CSQUARE suitable for use in block cipher and hash design with a very high multi-round trail weight. The new design inherits the hardware efficiency of the SQUARE linear transform pattern as well as the efficiency of the fast pseudo-Hadamard transform over a finite field. We demonstrate the DMWT hash function which makes use of our new results.
BibTeX
@misc{eprint-2004-12002,
  title={The CSQUARE Transform},
  booktitle={IACR Eprint archive},
  keywords={secret-key cryptography / Pseudo-Hadamard Transform, Branch Analysis, Pseudo-Random Permutations},
  url={http://eprint.iacr.org/2004/026},
  note={ tomstdenis@iahu.ca 12450 received 30 Jan 2004, last revised 2 Feb 2004},
  author={Tom St Denis},
  year=2004
}