计算机应用研究2017，Vol.34Issue(10)：3077-3084,8.DOI:10.3969/j.issn.1001-3695.2017.10.044
一种基于耦合映像格子的彩色图像加密算法
Color image encryption algorithm based on coupled map lattice
摘要
Abstract
In order to effectively improve the security of the color image encryption algorithm,this paper presented a color image encryption algorithm based on coupled map lattice.Firstly,it used the one-dimensional robust chaotic map for disposing three primary matrices of the color image,achieved the pretreatment based on bit computing.Then,it divided processed matrix into blocks and completed the round encryption.Generated S-boxes by the coupled map lattice,used the secondary key for selecting S-box and achieved the nonlinear replacement each round.Pairwise combined the replacement matrix and encrypted two-way to reduce the correlation of the same pixel corresponded to three color components.Obtained initial value of system by combining logistic map and plaintext,which effectively improved the sensitivity of the keys and plaintext.Theoretical analysis and experimental results show that the proposed algorithm has better security and encryption effect.关键词
耦合映像格子/图像加密/比特运算/S盒Key words
coupled map lattice/image encryption/bit computing/S-box分类
信息技术与安全科学引用本文复制引用
李彤,张雪锋..一种基于耦合映像格子的彩色图像加密算法[J].计算机应用研究,2017,34(10):3077-3084,8.基金项目
国家自然科学基金资助项目(61301091) （61301091）
西安邮电大学研究生创新基金资助目 (CXL2015-33) （CXL2015-33）
