Image Encryption by Applying Double Chaotic S-Boxes: A Comprehensive Review

Abstract

A novel chaotic S-box based image encryption scheme is proposed to enhance the security and efficiency of image encryption schemes comprehensively. First, to expand the chaotic spectrum and enhance the chaotic efficiency of 1D discrete chaotic maps, a new compound chaotic system, the Sine-Tent map, is proposed. As a consequence, for cryptosystems, the current compound chaotic method is more fitting. Secondly, an effective and easy method is proposed to produce S-boxes that can significantly improve the efficiency of the output of S-boxes. Thirdly, a novel image encryption algorithm based on double S-box is proposed. The proposed cryptosystem can avoid the four classical types of attacks by adding identical key sequences {r, t} linked to image cypher text, which is an advantage over other S-box based encryption schemes. In addition, two rounds of forward and backward confusion-diffusion operation with double S-boxes increased the system's resistance to differential analysis attack. The results of the simulation and the security review check the feasibility of the scheme proposed. The new scheme has clear efficiency benefits, which means that in real-time image Encryption It Has Greater Application Potential.