[Resource Topic] 2009/575: Differential Fault Analysis of the Advanced Encryption Standard using a Single Fault

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Title:
Differential Fault Analysis of the Advanced Encryption Standard using a Single Fault

Authors: Michael Tunstall, Debdeep Mukhopadhyay

Abstract:

In this paper we present an enhanced Differential Fault Attack that can be applied to the AES using a single fault. We demonstrate that when a single random byte fault is induced that affects the input of the eighth round, the AES key can be deduced using a two stage algorithm. The first step, would be expected to reduce the possible key hypotheses to 2^{32}, and the second step to a mere 2^{8}. Furthermore, we show that, with certain faults, this can be further reduced to two key hypotheses.

ePrint: https://eprint.iacr.org/2009/575

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