河南理工大学学报：自然科学版2012，Vol.31Issue(6)：717-721,5.
一种基于复合混沌系统变参数图像加密新算法
A novel encryption scheme based on the composite chaotic system
摘要
Abstract
Based on compound chaotic systems with variable control parameters, a novel image encryption scheme is proposed. Firstly, the system parameter of the Logistic map is chosen according to the map itself and a nonlinear coupled function is constructed with a 3D chaotic system to scramble the pixels of the plain- text. At the same time, gray-level transformation is operated after each round of scrambling according to the chaotic sequences and plaintext. Hence, the proposed algorithm owns the characteristics necessary for crypto- system such as confusion and diffusion, etc. Simulation experiments and the security analysis indicate that the proposed scheme has a large key space together with excellent statistical properties, and can resist exhaustive attack, differential attack and ehosen-plaintext attack, etc.关键词
变参数/图像加密/Logistic映射/安全性分析/差分攻击Key words
variable control parameters/image encryption/logistic map/security analysis/differential attack分类
信息技术与安全科学引用本文复制引用
王斌斌,张妍琰,吴长泽..一种基于复合混沌系统变参数图像加密新算法[J].河南理工大学学报：自然科学版,2012,31(6):717-721,5.基金项目
国家自然科学基金资助项目 （）
河南省重点科技攻关项目（102102210020）. （）
