Performance and Security of Block Ciphers
نویسندگان
چکیده
We present a block cipher that has the best performance of all 64-bit block ciphers with the smallest proven di erential/linear probability 2 62 using the structure proposed by Matsui. One of features of his methodology is to use some power functions in GF (2 n ) with di erent n that are resistant to di erential and linear attacks. In this paper we discuss how to combine power functions x k in GF (2 n ) over GF (2) with di erent k and n with the goal of designing block ciphers with high performance and security against known attacks.
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