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Extended Differential Cryptanalysis of Kuznyechik

Stanica, Pantelimon et al.
arXiv (All) · Papers
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94a60cryptography-and-securityinformation-theory
We study the input-side relation $F(cx\oplus a)\oplus F(x)=b$ as an extended differential for block-cipher analysis. Because multiplication occurs before the first S-box, fixing that S-box output leaves an ordinary XOR difference for subsequent binary linear layers and common key additions. For perm
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