More dual rijndaels

  • Authors:
  • Håvard Raddum

  • Affiliations:
  • Dep. of Informatics, The University of Bergen, Bergen, Norway

  • Venue:
  • AES'04 Proceedings of the 4th international conference on Advanced Encryption Standard
  • Year:
  • 2004

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Abstract

It is well known that replacing the irreducible polynomial used in the AES one can produce 240 dual ciphers. In this paper we present 9120 other representations of GF(28), producing more ciphers dual to the AES. We also show that if the matrix used in the S-box of Rijndael is linear over a larger field than GF(2), this would have implications for the XSL attack.