An Image Encryption Algorithm Based on Chaotic Cat Map
Xianwu Huang · Microelectronics & Computer · 2007
In this paper,a modified algorithm for 3D chaotic cat map is proposed,and applied to image encryption based on the traditional chaotic cat map.The algorithm takes the pixel's location and gray level as the initial condition,and the parameters and iteration number as the keys,and then is applied to encrypt the image.Theory proofs that the proposed algorithm is identically invertible,and contains permutation and substitution,which are necessary factors for a good encryption method.The experimental results also show that the modified algorithm is effective to chaotic image encryption.