A Text Encryption Algorithm Based on Self-Synchronizing Stream Cipher and Chaotic Maps
Keywords:
Text encryption, Chaotic map, Self-Synchronizing Stream Cipher, hyper-chaotic, Bernoulli map, Henon mapAbstract
A new text encryption algorithm which is based upon a combination between Self-Synchronizing Stream Cipher and chaotic map has been proposed in this paper. The new algorithm encrypts and decrypts text files of different sizes. First of all, the corresponding ASCII values of the plain text are served as input to the permutation operation which diffuses the positions of these values by using hyper-chaotic map. Secondly, the result values are input to substitution operation via1D Bernoulli map. Finally, the resultant vales are XOR feedback with the key.The proposed algorithm has been analyzed using a number of tests and the results show that it has large key space, a uniform histogram, low correlation and it is very sensitive to any change in the plain text or key.
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