DPA Countermeasure Based on the "Masking Method"

  • Authors:
  • Kouichi Itoh;Masahiko Takenaka;Naoya Torii

  • Affiliations:
  • -;-;-

  • Venue:
  • ICISC '01 Proceedings of the 4th International Conference Seoul on Information Security and Cryptology
  • Year:
  • 2001

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Abstract

We propose a new differential power analysis (DPA) countermeasure based on the "masking method" proposed by Messerges [11]. We also evaluate the security of our method by introducing a new idea of "probabilistic DPA." Its processing speed is as fast as that of the straightforward implementation, and it requires little RAM so it is suitable for low-cost smartcards.