Design a new image encryption algorithm based on a 2D-ASCC map

Author:

Fei Xiaoyu,Zhang Jiujun,Qin Wenjie

Abstract

Abstract In this paper, a new model of 2D absolute sine-cosine coupling (2D-ASCC) is proposed. In comparison with other 2D chaos map, the proposed system has higher complexity and better property of pseudo-random. It can effectively improve the security performance of encryption algorithm, if the proposed chaos map is applied in the design of image encryption algorithm based on chaos. Then, a new diffusion algorithm is designed based on the jumping diffusion. The plaintext is divided into two groups, and each group of plaintext is encrypted with a different formula. The pixel value of each ciphertext is composed of several non-adjacent pixels and the pseudo-random values generated by the proposed chaos map. In comparison with some existing encryption scheme, by using the design encryption scheme, the plaintext image can be completely encrypted in one iteration, it can significantly increase the security of algorithm and reduces the correlation between adjacent pixels. Finally, by using the numerical simulation and the security analysis, the effectiveness of the encryption algorithm is verified, and the comparison results show the higher security of the design encryption algorithm.

Funder

National Natural Science Foundation of China

Publisher

IOP Publishing

Subject

Condensed Matter Physics,Mathematical Physics,Atomic and Molecular Physics, and Optics

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