Encryption algorithm of colour image based on coupling chaotic systems
Haiying Liu · Journal of Computer Applications · 2010
This article discussed a new color image encryption algorithm.The initial conditions of chaotic systems were taken as the initial key pairs to do XOR pre-treatment of the images.The chaotic sequences generated by Logistic mapping and Lorenz system were used to scramble and diffuse the images.The algorithm used the processed image data as the initial value of Logistic mapping,and coupled Lorenz system with Logistic mapping,greatly to improve the security.The algorithm has good scrambling and diffusion effects,high encryption and decryption speed,and good anti-noise ability.