IMAGE ENCRYPTION TECHNIQUES: A COMPREHENSIVE REVIEW

Abstract

A complex chaotic system that combines two or more discrete chaotic systems is the composite discrete chaotic system (CDCS). In a random way, this system retains the chaotic features of various chaotic systems and has chaotic behaviors that are more complex. We intend to provide a novel image encryption algorithm based on a new two-dimensional (2D) CDCS in this paper. The suggested method consists of two parts: first, we propose a new 2D CDCS and analyze the chaotic behaviors, and then, with the new CDCS, we implement the bit-level permutation and pixel-level diffusion encryption architecture to form the entire proposed algorithm. To improve the security of the proposed algorithm, random values and the total information of the plain image are applied to the diffusion process. The theoretical analysis and simulations both confirm the security of the algorithm proposed.