Cryptanalysis of an involutional block cipher using cellular automata |
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| Authors: | Jaechul Sung Deukjo Hong |
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| Affiliation: | a Department of Mathematics, University of Seoul, Seoul 130-743, Republic of Korea
b CIST, Korea University, Seoul 136-701, Republic of Korea |
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| Abstract: | In 2006, an involutional block cipher using cellular automata was proposed. A self-invertible CA-based structure allows for an efficient hardware implementation. This paper analyzes the insecurity of the cipher due to its conjugate property. The results of this study will make it possible to construct a decryption process without knowledge of the secret key. |
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| Keywords: | Cryptography Block cipher Cellular automata Involution |
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