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The MARS-like structure is a generalised Feistel structure. In 2015, Xue and Lai proved that there always exist (3n − 1)-round impossible differentials of MARS-like structures with n subblocks, as long as the round function is bijective. In this study, the length of the impossible differentials is extended by 1 round supposing that the MARS-like structure adopts the bijective round function of SP-type,...
Light encryption device (LED) is a 64 bit lightweight block cipher proposed by Guo et al. at CHES 2011, and its key size is primarily defined as 64 and 128 bits. This study studies differential fault analysis (DFA) of LED using the technique of Super-Sbox analysis. Under various fault models, the fault pattern propagation rule of the Super-Sbox can be obtained, based on which the efficiency of fault...
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