摘要
提出了一种改进的Logistic混沌映射,并设计了一种基于改进的Logistic混沌映射的图像加密算法,采用两个混沌系统分别产生辅助密钥和对图象像素进行替代加密的密钥.分析和实验结果表明,该算法具有良好的加密效率,提出的方案具有较高的安全性.
This paper puts forward an improved Logistic chaotic system and proposes a new image encryption algorithm based on this system. In the scheme proposed for the algorithm, two Logistic systems are adopted respectively to generate auxiliary and secret keys for the substitute encryption of image pixels. Experimental and theoretical results demonstrate that this algorithm has good efficiency of encryption and this proposed scheme is also of high security.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2008年第1期153-157,共5页
Journal of Central South University of Forestry & Technology
基金
湖南省自然科学基金资助项目“适用于数学图像认证及重建的小波域水印研究”(06JJ50098)
湖南省教育厅科研基金资助项目(06A031)
