基于Logistic映射的彩色图像加密算法设计实现

Design and Implementation of Image Encryption Based on Logistic maps

该算法使用Logistic映射产生混沌序列。采用单向散列函数生成Logistic映射的两个初始值,进行混沌迭代产生两个混沌序列,再按照一定算法生成两个变换矩阵实现对彩色图像的频域加密。实验证明,该算法实现简单,解密图像失真度低,安全性高,对彩色图像有着良好的加密效果。

The color image chaotic encryption algorithms are proposed. Frequency domain algorithm uses Hash function and Logistic chaotic maps confusing image to accomplish encryption. Experiments prove that the algorithms are easy to be accomplished and have strong security, decryption image＇s distortion is low. These algorithms have good encryption effect to color image.