New Structure of Block Ciphers with Provable Security against Differential and Linear Cryptanalysis

Abstract

Abst rac t . We introduce a methodology for designing block ciphers with provable security against differential and linear cryptanalysis. It is based on three new principles: change of the location of round functions, round functions with recursive structure, and substitution boxes of different sizes. The first realizes parallel computation of the round… (More)
DOI: 10.1007/3-540-60865-6_54

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