Secure and Efficient Masking of AES - A Mission Impossible?

نویسندگان

  • Elisabeth Oswald
  • Stefan Mangard
  • Norbert Pramstaller
چکیده

This document discusses masking approaches with a special focus on the AES S-box. Firstly, we discuss previously presented masking schemes with respect to their security and implementation. We conclude that algorithmic countermeasures to secure the AES algorithm against side-channel attacks have not been resistant against all first-order side-channel attacks. In this article, we introduce a new masking countermeasure which is not only secure against first-order side-channel attacks, but which also leads to relatively small implementations compared to other masking schemes when implemented in dedicated hardware.

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عنوان ژورنال:
  • IACR Cryptology ePrint Archive

دوره 2004  شماره 

صفحات  -

تاریخ انتشار 2004