Annual International Conference on the Theory and Applications of Cryptographic Techniques

EUROCRYPT 2011: Advances in Cryptology – EUROCRYPT 2011 pp 69-88

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

  • Amir Moradi
  • Axel Poschmann
  • San Ling
  • Christof Paar
  • Huaxiong Wang
Conference paper

DOI: 10.1007/978-3-642-20465-4_6

Volume 6632 of the book series Lecture Notes in Computer Science (LNCS)

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 attackscountermeasuressecret sharinglightweightASIC
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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