基于DNA编码的多图像加密算法  

Multiple-image encryption algorithm based on DNA encoding

作　　者：孙鹤鹏 张晓强 SUN He-peng;ZHANG Xiao-qiang(School of Information and Control Engineering,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]中国矿业大学信息与控制工程学院,江苏徐州221116

出　　处：《计算机工程与设计》2018年第10期3050-3054,3099,共6页Computer Engineering and Design

基　　金：国家自然科学基金青年科学基金项目(61501465);中央高校基本科研业务专项资金课题基金项目(2015QNA68)

摘　　要：为保障图像传输的安全性,提出一种基于DNA和混沌映射的多图像加密算法。分别对k幅原始图像进行DNA编码;根据混沌映射产生的混沌序列,将DNA序列在k幅图像间移动进行置乱;将置乱后的图像与DNA编码后的混沌图像进行加法运算完成扩散过程,DNA解码后得到加密图像。实验结果和算法分析表明,该算法加密效果良好,安全性高。To protect the security of image transmission,a multiple-image encryption algorithm based on DNA and chaotic map was proposed.The k plain images were encoded based on the DNA theory respectively.To scramble the images,the DNA sequences were moved among k coded images with chaotic sequences.Scrambled images were added respectively with the chaotic image encoded based on the DNA theory to complete the diffusion process.The encrypted images were obtained after the DNA decoding.Experimental results and algorithm analysis show that the proposed encryption algorithm has excellent encryption effect and high security.

关 键 词：多图像加密 信息安全 DNA编码 混沌映射 安全散列算法 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]