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Accelerating technique of cryptanalysis on SAFER-64

HOU Yu, SU Kai-yu, YAN Yong(China Jiliang University, Hangzhou 310018, China)  
Based on the combined differential method, the accelerating technique of cryptanalysis on SAFER-64 systems is investigated in this paper. The technique of plexertext pair selection, the algorithms of reducing the range of the byte keys, and the elimination of incorrect keys are presented . It is shown that the attacking on SAFER-64 systems is accelerated highly with these techniques through theoretical analysis and digital tests.
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