Image Encryption Algorithm Based on Improved Magic Cube Transformation and Chaotic Cipher Matrix
LI Ru-pin · Journal of Lanzhou University of Arts and Science · 2015
In order to solve these problems such as small key space resulting in low security of image encryption algorithm based on chaotic system,the new image encryption algorithm is designed based on improved magic cube transformation and chaotic cipher matrix in this paper.Firstly,the plaintext image is permutated by improved magic cube principle to scramble the position of pixel;then the permutation image is diffused by constructing chaotic cipher matrix and combination with the XOR operator to change the pixel value;Finally,the corresponding decryption algorithm is also proposed.Simulation results show that this algorithm has bigger key space,as well as stronger robustness compared with these algorithms based on chaotic system.