摘要
加密算法存在图像尺寸变大而导致加密时间迅速增加的问题。为了解决这个问题,设计一个加密算法,先对原始图像像素进行移位置乱操作,再对置乱图像进行灰度值替代得到加密图像。实验结果表明,该算法具有加密速度快、密钥空间大等优点,并能有效抵抗穷举攻击、统计攻击和差分攻击。
The encryption algorithm has the problem that the image size becomes larger,which leads to the rapid increase of encryption time.In order to solve this problem,this paper designs an encryption algorithm,firstly,the original image pixels are shifted and scrambled,and then the scrambled image is replaced by gray value to obtain the encrypted image.Experimental results show that the algorithm has the advantages of fast encryption speed,large key space,and can effectively resist exhaus-tive attack,statistical attack and differential attack.
作者
乔建平
QIAO Jianping(Liuzhou Vocational&Technical College,Liuzhou Guangxi 545006,China)
出处
《装备制造技术》
2021年第11期37-39,49,共4页
Equipment Manufacturing Technology
基金
2021年度广西高校中青年教师科研基础能力提升项目(RZ2100001898)。
关键词
加密时间
混沌系统
移位置乱
加密算法
encryption time
chaotic system
move position disorder
encryption algorithm
