Pushing the Limits: A Very Compact and a Threshold Implementation of AES

  • Amir Moradi
  • Axel Poschmann
  • San Ling
  • Christof Paar
  • Huaxiong Wang
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6632)

Abstract

Our contribution is twofold: first we describe a very compact hardware implementation of AES-128, which requires only 2400 GE. This is to the best of our knowledge the smallest implementation reported so far. Then we apply the threshold countermeasure by Nikova et al. to the AES S-box and yield an implementation of the AES improving the level of resistance against first-order side-channel attacks. Our experimental results on real-world power traces show that although our implementation provides additional security, it is still susceptible to some sophisticated attacks having enough number of measurements.

Keywords

side-channel attacks countermeasures secret sharing lightweight ASIC 

Copyright information

© International Association for Cryptologic Research 2011

Authors and Affiliations

  • Amir Moradi
    • 1
  • Axel Poschmann
    • 2
  • San Ling
    • 2
  • Christof Paar
    • 1
  • Huaxiong Wang
    • 2
  1. 1.Horst Görtz Institute for IT SecurityRuhr University BochumGermany
  2. 2.Division of Mathematical Sciences, School of Physical and Mathematical SciencesNanyang Technological UniversitySingapore

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