On immunity profile of boolean functions

  • Authors:
  • Claude Carlet;Philippe Guillot;Sihem Mesnager

  • Affiliations:
  • MAATICAH, Université de Paris 8, France;MAATICAH, Université de Paris 8, France;MAATICAH, Université de Paris 8, France

  • Venue:
  • SETA'06 Proceedings of the 4th international conference on Sequences and Their Applications
  • Year:
  • 2006

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Abstract

The notion of resilient function has been recently weakened to match more properly the features required for Boolean functions used in stream ciphers. We introduce and we study an alternate notion of almost resilient function. We show that it corresponds more closely to the requirements that make the cipher more resistant to precise attacks.