Image encryption based on improved chaos and hash function

Wangchun Wu; Mengmeng Zhang; Xiangxiang Chen; Rong Jin

doi:10.1117/12.2600146

1 June 2021 Image encryption based on improved chaos and hash function

Wangchun Wu, Mengmeng Zhang, Xiangxiang Chen, Rong Jin

Proceedings Volume 11848, International Conference on Signal Image Processing and Communication (ICSIPC 2021); 1184802 (2021) https://doi.org/10.1117/12.2600146
Event: International Conference on Signal Image Processing and Communication (ICSIPC 2021), 2021, Chengdu, China

Abstract

Based on the traditional Kent mapping, an improved Kent mapping is proposed, which increases its sequence complexity, key space and parameter range. The image is divided into equal parts and scrambled by Rubik's cube function. The initial value and control parameters are generated by the hash function, and two improved Kent chaotic mapping sequences and Logistic sequences are generated. Finally, the encrypted image is generated by the chaotic sequence. In-depth analysis and simulation of image gray distribution, adjacent pixel correlation, information entropy, key space and robustness show that the algorithm has high security and strong anti-attack ability.

Citation Download Citation

Wangchun Wu, Mengmeng Zhang, Xiangxiang Chen, and Rong Jin "Image encryption based on improved chaos and hash function", Proc. SPIE 11848, International Conference on Signal Image Processing and Communication (ICSIPC 2021), 1184802 (1 June 2021); https://doi.org/10.1117/12.2600146

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