Etsuko Tsujihara

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This paper reports impossible differential cryptanalysis on the 128-bit block cipher CLEFIA that was proposed in 2007, including new 9-round impossible differentials for CLEFIA, and the result of an impossible differential attack using them. For the case of a 128-bit key, it is possible to apply the impossible differential attack to CLEFIA reduced to 12(More)
This paper presents the results of three kinds of side-channel attacks, experimentally made against software-implemented ciphers on INSTAC-8 Compliant Board. INSTAC-8 is the standard evaluation platform, newly designed by the Information Technology Research and Standardization Center (INSTAC; a division of Japan Standards Association), to test Side-channel(More)
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