计算机应用研究2017，Vol.34Issue(10)：3090-3093,4.DOI:10.3969/j.issn.1001-3695.2017.10.046
对改进的基于DNA编码和混沌的图像加密算法的安全性分析
Security analysis of improved image encryption method based on DNA coding and chaotic map
摘要
Abstract
This paper first introduced an image encryption algorithm based on DNA coding and chaotic maps,analyzed its security and found that the essence of the proposed algorithm was to add up DNA encoding matrix of the plain text image and that of the random matrix generated by chaotic maps and obtained the cipher image by complement operation of the sum matrix.Through in-depth analysis,it found that the security of the algorithm was completely dependent on the random matrix produced by chaotic mapping,which had no correlation with the plain text image or the corresponding cipher text image.Therefore,it obtained the equivalent key with chosen plaintext attacks to decipher the target plain text image and decrypted the target cipher text image.Both mathematical analysis and analogue simulation experimental results verify the feasibility of the proposed chosen plaintext attack strategies.In addition,it reported another two other security defects of the introduced algorithm and finally discussed some possible methods to improve its security.关键词
混沌映射/DNA编码/图像加密/选择明文攻击Key words
chaotic map/DNA encoding/image encryption/chosen plaintext attack分类
信息技术与安全科学引用本文复制引用
朱淑芹,李俊青,王文宏..对改进的基于DNA编码和混沌的图像加密算法的安全性分析[J].计算机应用研究,2017,34(10):3090-3093,4.基金项目
国家自然科学基金面上项目(61573178) （61573178）
聊城大学科研基金资助项目(318011606) （318011606）
