基于哈希和DNA编码的彩色图像混沌加密算法
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1.重庆电力高等专科学校 信息工程学院;2.重庆大学 大数据与软件学院;3.重庆应用技术职业学院 电子信息与财经商务系;4.重庆市公安局交巡警总队

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TP309

基金项目:

国家自然科学基金(61702062);重庆市技术创新及应用发展专项重点项目(cstc2019jscx-mbdxX0044);重庆市基础科学与前沿技术研究专项(cstc2018jcyjAX0334);重庆市留学人员回国创业创新计划(cx2018015);中央高校基本科研前沿交叉专项(2019CDQYRJ006);重庆市教育委员会科研基金资助(KJQN201802602)


Hyper-chaotic Color Image Encryption Algorithm based on Hash and DNA coding
Author:
Affiliation:

1.School of Information Engineering,Chongqing Electric Power College;2.School of Big Data and Software Engineering,Chongqing University;3.Department of Electronic Information and Financial Business,Chongqing Vocational College of Applied Technology;4.Traffic and Patrol Police Corps of Chongqing Public Security Bureau

Fund Project:

Supported by the National Natural Science Foundation of China(No.61702062), Key Project of Technology Innovation and Application Development of Chongqing (No.cstc2019jscx-mbdxX0044), the Chongqing Research Program of Basic Research and Frontier Technology with Grant (No.cstc2018jcyjAX0334), the Fundamental Research Funds for the Central Universities (No.2019CDQYRJ006), and Overseas Returnees Innovation and Entrepreneurship Support Program of Chongqing(cx2018015), and Research Fund of Chongqing Education Commission(KJQN201802602).

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    摘要:

    彩色图像的安全性一直受到学者的关注。针对彩色图像加密算法对置乱效果不佳,扩散特性不强、抵御统计攻击能力较弱等问题,提出一种基于哈希和DNA编码的彩色图像混沌加密算法。本文先运用哈希算法生成Arnold混沌映射的参数、然后将Arnold混沌映射和改进Logistic混沌映射结合,对图像进行R、G、B三个维度的置乱;最后利用DAN编码对图像进行混乱处理。理论分析和计算机仿真表明,本文的算法具有良好的加密效果,且对统计、差分攻击具有很好的抵御效果。

    Abstract:

    The security of color image has always been concerned by scholars. To deal with the defect of traditional color image encryption algorithm such as poor scrambling effect,weak diffusion characteristics and resistance to statistical attacks,this paper presents a Hyper-chaotic Color Image Encryption Algorithm based on Hash and DNA coding. In the proposed algorithm,the parameters of Arnold chaotic map are generated by hash algorithm first; then,combined with Arnold chaotic map and improved Logistic chaotic map, the image is scrambled in three dimensions of R, G, and B; in the end , the image is chaotically processed using DAN coding.The theoretical analysis and computer simulation shown that the algorithm in this paper has good encryption effect,and it has good resistance effect to statistical and differential attacks.

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  • 收稿日期:2020-06-30
  • 最后修改日期:2020-11-22
  • 录用日期:2020-11-23
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