期刊论文

Zhong, C

英文

Multimedia Tools and Applications

1380-7501

2023

1-21

10.1007/s11042-023-16981-8

This work was supported by the National Natural Science Foundation of China (No. 11672104), the Chair Professor of Lotus Scholars Program in Hunan Province (No. XJT2015408). The authors also would like to thank the support from the scientific research proj [11672104]; National Natural Science Foundation of China [XJT2015408]; Chair Professor of Lotus Scholars Program in Hunan Province [18D24]; scientific research project of Hengyang Normal University [2016TP1020]; Science and Technology Plan Project of Hunan Province [18A333, 19A066]; General Scientific Research Fund of Hunan Provincial Education Department

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The security of images is of great importance given the current development of Internet technology. The existing encryption algorithms have some defects, such as the key space is not large enough and the encryption speed is slow. A fast image encryption algorithm with variable key space is proposed. The algorithm key space is dynamically changeable and the variable key space is associated with the initial condition of Hénon map, making this cryptosystem extremely sensitive to the key. The overall algorithm uses a permutation-diffusion-permutat...