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Lecture Notes in Computer Science
This paper introduces the differential cryptanalysis of additive stream ciphers, and develops its theoretical basis. The relationships between differential and other types of stream cipher analysis are presented. The conservation laws of patterns and of mutual information are derived. The cryptographic significance of pattern distribution of keystream sequences is shown. The cryptographic transformation densities are introduced, and their relations with other cryptographic factors aredoi:10.1007/3-540-58108-1_13 fatcat:hlphmli7mrex3axhui4dx7pbgu