Study of Digital Image Encryption Secure Transmission based on Chaotic Systems

A image encryption secure transmission algorithm based on chaotic system is proposed and discussed in the paper.This algorithm uses the chaotic sequence created by discrete Logistic mapping of given initial values and parameters to modify the magic cube transformation,then,the modified magic cube transformation to do permutation transforms of image and perform circular XOR operation on gray value of pixels and the chaotic sequence.This algorithm,for its simple design,could be implemented.The experimental simulation and analysis indicate that the algorithm is of fairly high security and fast encrypting capability.