AIRCC's International Journal of Computer Science and Information Technology

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In this article, we present a new symmetric encryption system which is a combination of our ciphering evolutionary system SEC [1] and a new ciphering method called "fragmentation". This latter allows the alteration of the appearance frequencies of characters from a given text. Our system has at its disposed two keys, the first one is generated by the evolutionary algorithm, the second one is generated after "fragmentation" part. Both of them are symmetric, session keys and strengthening the security of our system.

Keywords

Cryptography, Cipher, Symmetric Encryption, Evolutionary Algorithm.
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