A New DPA Countermeasure Based on Permutation Tables

  • Authors:
  • Jean-Sébastien Coron

  • Affiliations:
  • University of Luxembourg,

  • Venue:
  • SCN '08 Proceedings of the 6th international conference on Security and Cryptography for Networks
  • Year:
  • 2008

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Abstract

We propose and analyse a new countermeasure against Differential Power Analysis (DPA) for the AES encryption algorithm, based on permutation tables. As opposed to existing AES countermeasures, it does not use random masking. We prove that our new countermeasure is resistant against first-order DPA; we also show that it is quite efficient in practice.