Abstract
By researching into the attack to present block cipher, we find an essential reason leading to the assailable encryption strength, set up a new block cipher idea and put forward a block cipher encryption concept path encryption. We present permutation code encryption which is based on path encryption. Now permutation code encryption is a patent of Chinese invention. In Permutation Code Encryption, we use a pseudo-random sequence of the keys to control the paths. The simulation result shows that forn-bit block the encryption strength is novel higher than 2″ and the algorithm can finish the encryption of one block in 7.5 ns, which is unrelated with the block length.
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Biography: WU Jinmu (1946-), male, Professor, research direction: cryptography, information security.
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Jinmu, W., Maohua, L., Guiqin, F. et al. Permutation code encryption—New achievement based on path encryption. Wuhan Univ. J. Nat. Sci. 11, 1581–1584 (2006). https://doi.org/10.1007/BF02831825
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DOI: https://doi.org/10.1007/BF02831825