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.
cipher, differential, S-box, simulation, cryptanalysis
"Yssledovanye dyfferentsyalnыkh svoistv blochno-symmetrychnыkh shyfrov" ,
Information Processing Systems,