Multiple Image Encryption Algorithm Based on Random Chaotic System and Bit Permutation
Guangman Sun, Jinbin Chen, Ruisong Ye · 2021 7th Annual International Conference on Network and Information Systems for Computers (ICNISC) · 2021
A new random chaotic system demonstrating good chaotic natures is constructed. A multiple image encryption algorithm based on the proposed random chaotic system and bit permutation is proposed. Firstly, two original images are synthesized into one plain-image, chaotic sequence related to plain-image and generated by random chaotic system is then applied to shuffle pixels of the plain-image. Bit permutation is also performed to permute the binary image yielded by the scrambled image. Finally, the binary image is transformed into a 8-bit gray image and a diffusion process is carried out to obtain the cipher-image. Experimental results and security analysis show that the encryption algorithm has high security and can resist various classical attacks.