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Jingwei Li, Chunfu Jia, Zheli Liu and Zongqing Dong Cycle-walking revisited: consistency, security, and efficiency Security and Communication Networks 6

Version of Record online: 27 DEC 2012 | DOI: 10.1002/sec.648

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This paper provides theoretical foundation and quantitative efficiency analysis to cycle-walking, which is an approach that makes sure ciphertext falls in the acceptable range. On consistency, cycle-walking must eventually arrive back with finite iteration rounds and its decryption reverses encryption. On security, cycle-walking would not degrade the security of underlying ciphers. On efficiency, we draw a conclusion that the average iteration rounds for cycle-walking is nearly inline image, where inline image, n is the domain size and k is the number of binary input subblocks in the combined Feistel network.

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