基于混沌映射和DNA序列的图像加密  

Image Encryption Based on Chaotic Map and DNA Sequence Operations

作　　者：郭永宁 孙树亮[1,2] 

机构地区：[1]福建师范大学福清分校电子与信息工程学院,福建福清350300 [2]福建师范大学福清分校创新信息产业研究所,福建福清350300

出　　处：《图学学报》2017年第6期837-842,共6页Journal of Graphics

基　　金：国家自然科学基金项目(61473329);福建省自然科学基金项目(2016J05153);2017年福建省高校杰出青年科研人才培育计划

摘　　要：在2D-SIMM混沌映射和DNA编码的基础上,提出了一种新型的图像加密算法。通过2D-SIMM混沌映射,可以生成随机性更好的混沌序列。为了增强信息系统的安全性,采用了扩展的汉明距离并提出了改进的异或操作。利用DNA加法和减法及互补映射规则,提出了基于DNA的图像加密算法。实验证明该算法加密效果好,具有安全性、有效性和鲁棒性。In this paper, a novel scheme for image encryption scheme is proposed, which is based on 2D-SIMM chaotic map and DNA sequence operations. 2D-SIMM chaotic map could generate larger chaotic ranges and better chaotic behaviors. The generated sequences are more suitable for image encryption. Extended Hamming distance is adopted and improved expanded XOR operation is proposed in this paper. DNA addition and subtraction rules are performed. Then the algorithm based on DNA complementary rule is presented. The experiments display that the proposed algorithm is available in security, availability and robustness.

关 键 词：2D一SIMM 改进的异或操作 扩展的汉明距离 DNA互补规则 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]