一种基于混沌与Bit位扰乱的彩色图像加密算法
A Color Image Encryption Algorithm Based on Chaos and Bit Disturbance
DOI: 10.12677/JISP.2019.81003, PDF,    科研立项经费支持
作者: 庄志本, 刘静漪：湖北民族学院理学院，湖北 恩施；陈世强*：湖北民族学院新材料与机电工程学院，湖北 恩施
关键词: Henon混沌映射；Bit位扰乱；彩色图像加密；按位“异或”运算；Henon Chaotic Map； Bit Scrambling； Color Image Encryption； Bitwise XOR Operation
摘要: 本文提出了一种基于改进的Henon混沌映射与Bit位扰乱的彩色图像加密算法。首先，我们把明文图像的R、G、B三个通道合并成一个矩阵，同时还把其转换成二进制数；其次，把二进制数矩阵的行列进行扰乱，并把扰乱了的二进制数矩阵还原成十进制数矩阵；最后，把其分成三个像素个数相同的矩阵，再分别把三个矩阵进行按位“异或”运算，得到最终加密图像。实验结果和理论分析表明该算法具有密钥空间大，密钥敏感性高，能够有效地抵御统计分析和灰度值分析的攻击，对数字图像的加密具有良好的加密效果。
Abstract: In this paper, we propose a color image encryption algorithm based on improved Henon chaotic map and Bit scrambling. First, we combine the three channels R, G, and B of the plaintext image into a matrix, and also convert it into a binary number. Secondly, the rows and columns of the binary number matrix are disturbed, and the disturbed binary number matrix is restored to a decimal number matrix. Finally, it is divided into three matrices with the same number of pixels, and then the three matrices are subjected to a bitwise XOR operation to obtain the final encrypted image. The experimental results and theoretical analysis demonstrate that the algorithm has a large key space. It can effectively resist the attacks of statistical analysis and gray value analysis, and has a good encryption effect on digital image encryption.
文章引用：庄志本, 刘静漪, 陈世强. 一种基于混沌与Bit位扰乱的彩色图像加密算法[J]. 图像与信号处理, 2019, 8(1): 15-23. https://doi.org/10.12677/JISP.2019.81003

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