Side Channel Cryptanalysis of a Higher Order Masking Scheme

  • Authors:
  • Jean-Sébastien Coron;Emmanuel Prouff;Matthieu Rivain

  • Affiliations:
  • University of Luxembourg, Faculty of Sciences, Technology and Communication, 6, rue Richard Coudenhove-Kalergi, L-1359, Luxembourg;Oberthur Card Systems, 71-73 rue des Hautes Pâtures, 92726 Nanterre Cedex, France;University of Luxembourg, Faculty of Sciences, Technology and Communication, 6, rue Richard Coudenhove-Kalergi, L-1359, Luxembourg and Oberthur Card Systems, 71-73 rue des Hautes Pâtures, 927 ...

  • Venue:
  • CHES '07 Proceedings of the 9th international workshop on Cryptographic Hardware and Embedded Systems
  • Year:
  • 2007

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Abstract

In the recent years, DPA attacks have been widely investigated. In particular, 2-nd order DPA have been improved and successfully applied to break many masked implementations. In this context a higher order masking scheme has been proposed by Schramm and Paar at CT-RSA 2006. The authors claimed that the scheme is resistant against d-th order DPA for any arbitrary chosen order d. In this paper, we prove that this assertion is false and we exhibit several 3-rd order DPA attacks that can defeat Schramm and Paar's countermeasure for any value of d.