计算机工程与应用2011，Vol.47Issue(21)：191-194,4.DOI:10.3778/j.issn.1002-8331.2011.21.050
基于混合混沌与位分解的图像置乱改进算法
Image scrambling optimization algorithm based on mixed chaos system and bit decomposition
摘要
Abstract
For the existence of invalid-keys in current image scrambling algorithms based on chaos system,an extended algorithm is presented after the analysis of an image encryption algorithm based on chaotic sequence and bit exchange.Chaotic sequence is generated by mixed chaotic maps of Logistic and Chebyshev in the algorithm.Pixels of image are redistributed, and the gray values are encrypted by the intercepted binary chaotic sequence according to their location information.The experimental results show that the algorithm has good image scrambling effect and better safety.关键词
混沌系统/位分解/图像置乱/平凡密钥Key words
chaos system/bit decomposition/image scrambling/invalid-key分类
信息技术与安全科学引用本文复制引用
陆萍,董虎胜,马小虎..基于混合混沌与位分解的图像置乱改进算法[J].计算机工程与应用,2011,47(21):191-194,4.基金项目
江苏省自然科学基金(No.BK2007050). （No.BK2007050）
