Abstract

This paper proposes an image encryption technology based on six-dimensional hyperchaotic system and DNA encoding, in order to solve the problem of low security in existing image encryption algorithms. First of all, the pixel values of the R, G, and B channels are divided into blocks and zero-filled. Secondly, the chaotic sequence generated by the six-dimensional hyperchaotic system and logistic mapping is used for DNA coding and DNA operations. Third, the decoded three-channel pixel values are scrambled through diagonal traversal. Finally, merge the channels to generate a ciphertext image. According to simulation experiments and related performance analysis, the algorithm has high security performance, good encryption and decryption effects, and can effectively resist various common attack methods.

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