Abstract
Random fault attacks against Advanced Encryption Standard (AES) hardware implementation are widely researched. In the previous fault analysis, 6 rounds of attacks are required to recover the correct round-key, which is not efficient enough for extensive analysis. In this paper, a more efficient fault model is proposed. Based on the analysis of theoretical key candidate number, the proposed attack method can complete the analysis as few as 3 rounds. Experiment results shows that nearly 90% of the attacks recover the correct round-key with 3 rounds and in average only 3.125 rounds are required with our proposed attack method.
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