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一种基于混沌系统的分段式图像加密算法 被引量:2

A segmented image encryption algorithm based on chaotic system
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摘要 针对图像尺寸增大会导致加密时间增加问题,提出了一种基于混沌系统的快速图像加密算法。先对原始图像像素进行移位置乱操作,再对置乱图像进行分段式灰度值替代操作,从而得到加密图像。仿真结果表明:该算法加密速度快,安全性高,在各加密参数方面均可达到要求。 Aiming at the problem that the increase of image size will lead to the increase of encryption time,a fast image encryption algorithm based on chaotic system is proposed.Firstly,the original image pixels are shifted and scrambled,and then the scrambled image is replaced by segmented gray value to get the encrypted image.The simulation results show that the algorithm has fast encryption speed and high security,and can meet the requirements of encryption parameters.
作者 乔建平 关来德 Qiao Jianping;Guan Laide(Liuzhou Vocational and technical college,Guangxi Liuzhou 545006)
出处 《南方农机》 2021年第11期161-163,共3页
基金 2021年广西高校中青年教师科研基础能力提升项目“混沌系统加密图像加密算法研究与应用”(RZ2100001898)。
关键词 加密时间 混沌系统 移位置乱 加密算法 Encryption time Chaotic system Pixel scrambling Encryption Algorithm
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