New color image encry, tion algorithm based on double chaos system
Qiqi Cun, Xiaojun Tong · Journal of Physics Conference Series · 2021
Abstract Due to the specific characteristics of a chaotic system described by a set of nonlinear deterministic dynamic equations, encryption based on chaos has high security. Therefore, this paper proposes a very safe and effective new color image encryption algorithm based on double chaos system. First, a true color image is divided into three channels, and under the operation of the control signal, different pseudo-random sequences generated by the Chirikov standard image are selected for XOR operation with the image pixels of a certain channel. Secondly, this paper provides a process of generating replacement boxes using one-dimensionaltial attacks and entropy-based attacks. Therefore, the algorithm has a good encryption effect and has broad application prospects in the field of image encryption.