Image encryption algorithm based on cascaded chaotic map and improved Zigzag transform

Jiming Zheng; Tianyi Lv

doi:10.1049/ipr2.12600

journal article Open Access Aug 09, 2022

Image encryption algorithm based on cascaded chaotic map and improved Zigzag transform

Jiming Zheng

Tianyi Lv

IET Image Processing Vol. 16 No. 14 pp. 3863-3875 · Institution of Engineering and Technology (IET)

View at Publisher Save 10.1049/ipr2.12600

Abstract

Abstract
In this paper, an image encryption algorithm based on cascaded chaotic map and improved Zigzag transform is proposed. Firstly, a cascade chaotic system is improved to make its chaotic sequence evenly distributed and improve its parameter range. The purpose is to obtain high random chaotic sequence and make the ciphertext image more secure. Secondly, the improved Zigzag transform is used to scramble the image. Compared with the standard Zigzag transform, the improved Zigzag transform can fully scramble all the pixels and improve the randomness of the ciphertext image. Thirdly, a wave‐shaped diffusion algorithm is designed, its characteristic is that it can alternate between different row and column for diffusion. The combination of SHA256 algorithm and plain image makes the cipher image better resist the select plaintext attack. Simulation results show that the algorithm has fast encryption efficiency, high security and can effectively resist various attacks.

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Citations

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References

Details

Published: Aug 09, 2022
Vol/Issue: 16(14)
Pages: 3863-3875
License: View

Authors

J

Jiming Zheng

School of Science Chongqing University of Posts and Telecommunications Chongqing China

T

Tianyi Lv

College of Computer Science and Technology Chongqing University of Posts and Telecommunications Chongqing China

Cite This Article

Jiming Zheng, Tianyi Lv (2022). Image encryption algorithm based on cascaded chaotic map and improved Zigzag transform. IET Image Processing, 16(14), 3863-3875. https://doi.org/10.1049/ipr2.12600

Image encryption algorithm based on cascaded chaotic map and improved Zigzag transform

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