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arXiv · 0907.3177

Breaking a Chaotic Cryptographic Scheme Based on Composition Maps

Chengqing Li·David Arroyo·Kwok-Tung Lo
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Abstract

Recently, a chaotic cryptographic scheme based on composition maps was proposed. This paper studies the security of the scheme and reports the following findings: 1) the scheme can be broken by a differential attack with $6+\lceil\log_L(MN)\rceil$ chosen-plaintext, where $MN$ is the size of plaintext and $L$ is the number of different elements in plain-text; 2) the scheme is not sensitive to the changes of plaintext; 3) the two composition maps do not work well as a secure and efficient random number source.

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Chengqing Li, David Arroyo, Kwok-Tung Lo. 2009-07-18. Breaking a Chaotic Cryptographic Scheme Based on Composition Maps. https://doi.org/10.1142/s0218127410027192

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