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Camellia is one of the widely used block ciphers, which has been included in the NESSIE block cipher portfolio and selected as a standard by ISO/IEC. In this study, the authors observe that there exist some interesting properties of the FL/FL−1 functions in Camellia. With this observation they derive some weak keys for the cipher, based on which they present the first known 8-round zero-correlation...
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...
Crypton is a 12-round block cipher proposed as an AES candidate and Crtpton v1.0 is the revised version. In this paper, we present two related-key impossible differential attacks to reduced-round Crypton and Crypton v1.0. By carefully choosing the relations of keys, constructing some 6-round related-key differential trials and using some observations on the cipher, we first break 9-round Crypton v1...
9-round impossible differentials of SNAKE-2 are found due to the simple linear transformation in its round function, and 10 to 12-round SNAKE-2 are attacked by using these impossible differentials.
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