The novel image encryption scheme based on three- dimentional coupled chaotic system

Abstract In order to improve the complexity of chaotic mapping and security image encryption algorithms, this paper proposes a new coupled three-dimensional system based on sine lorenz mapping. Based system, color algorithm is proposed, which performs index position scrambling Arnold bit plane plaintext image, then an XOR diffusion operation scrambled ciphertext obtain final image. Simulation experiments show that has large key space, small correlation coefficient, information entropy value 7.9921, good effect.