一种基于混沌序列控制的3D cat映射加密算法

An Image Encryption Method Based on Chaotic Control Sequences and 3D Cat Maps

讨论并比较了3D cat映射与二维Arnold映射的差别,在此基础上改进了3D cat映射变换置乱方法,并利用复合混沌控制序列对像素灰度进行变换,从而实现图像像素位置和灰度值同时改变的加密效果.结果表明,这种加密方法具有较好的有效性.

The difference between 3D cat maps and Arnold transformation is discussed in this paper. The 3D cat maps to scramble pixels＇ position are improved. The composed chaotic control sequences to change pixels＇ gray-level is utilized. The experimental results indicate that good encryption effects can be obtained.