基于Logistic映射的BMP图像加密算法

BMP Image Encryption Algorithm Based on Logistic Map

根据BMP图像信息的特点,提出一种基于Logistic映射的BMP图像加密算法,该算法将两个Logistic映射组合起来构成复合混沌系统,产生两个混沌序列,用其中的一个混沌序列对BMP文件数据进行加密,另一个混沌序列对每个像素对应的R、G、B颜色分量进行加密。实验结果表明,该算法具有良好的加密效果。

According to the characteristic of BMP image information, presents a BMP image encryption algorithm based on logistic map. The algorithm consists of two sets of logistic maps, which produces two chaotic sequences. One of the chaotic sequences is used to encrypt the data of BMP image, while the other is used to encrypt the red component, green component and blue component of each pixel. The experimental results show that the algorithm has good encrypt effect.