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In 2013, the US National Security Agency proposed two new families of lightweight block ciphers: SIMON and SPECK. Currently, linear and differential cryptanalytic results for SIMON are available in the literature but no fault attacks have been reported so far on these two cipher families. In this paper, we show that these families of ciphers are vulnerable to differential fault attacks. Specifically,...
CLEFIA is already shown to be vulnerable to differential fault analysis (DFA). The existing state-of-the-art DFA shows that two faults are enough to break CLEFIA-128, whereas for CLEFIA-192 and CLEFIA-256 ten faults are needed. Side-by-side it emphasizes the need for protecting last four rounds of the cipher in order to make it secure against the attack. In this paper we propose an improved DFA on...
Literature on Differential Fault Analysis (DFA) on AES-128 shows that it is more difficult to attack AES when the fault is induced in the key schedule, than when it is injected in the intermediate states. Recent research shows that DFA on AES key schedule still requires two faulty cipher texts, while it requires only one faulty cipher text and a brute-force search of AES-128 keys when the fault...
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