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  5. Research of differential properties of mini-versions of block symmetric ciphers

Research of differential properties of mini-versions of block symmetric ciphers

L.S. Soroka, A.A. Kuznetsov, I.V. Moskovchenko, S.A. Isaev
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The block symmetric ciphers submitted to open tender for selection of candidates at the national standard for block symmetric encryption of Ukraine are considered. The effectiveness of the mini-versions of data on competition with respect to differential cryptanalysis of the cipher as a function of the number of rounds of pre-education, and depending on the number of transactions and the required cost of memory is investigated. The influence of properties applies the nonlinear nodes substitutions on the differential characteristics of block-symmetric ciphers are considered.
Keywords: cipher, differential, S-box, simulation, cryptanalysis