Efficient representation and software implementation of resilient maiorana-mcfarland s-boxes

  • Authors:
  • Kishan Chand Gupta;Palash Sarkar

  • Affiliations:
  • Cryptology Research Group, Applied Statistics Unit, Indian Statistical Institute, Kolkata, India;Cryptology Research Group, Applied Statistics Unit, Indian Statistical Institute, Kolkata, India

  • Venue:
  • WISA'04 Proceedings of the 5th international conference on Information Security Applications
  • Year:
  • 2004

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Abstract

We consider software implementation of resilient Maiorana-McFarland S-boxes. Such S-boxes have application in the design of stream ciphers and their efficient software implementation is important for software implementation of the corresponding stream ciphers. Most papers on construction of resilient Maiorana-McFarland S-boxes provide mathematical descriptions which are not sufficient for implementation purposes. Moreover, the mathematical descriptions do not bring out the fact that in most cases such S-boxes can be efficiently implemented using a small amount of memory. Our work shows that these S-boxes can be implemented using a small amount of memory and the output of an S-box can be computed using a small number of operations.