Research and Improvement of Image Encryption Algorithms Based on Chaos
Ruoyu Wang, Sanxing Cao · Journal of Physics Conference Series · 2019
Abstract Due to user privacy protection and other demands, image encryption is always a hot spot in the research field. In view of these problems, this article proposes a chaotic image encryption algorithm, which is named permutation-diffusion algorithm. Specifically, the image of the pixels is permuted, so that the pixel position changes, and then spreads, to change the pixel value. It can be observed from the test results that the algorithm is better in terms of efficiency and safety, compared with the state of the art.