基于混沌扩散加密的图像置乱隐藏算法  

New Image Scrambling Hiding Algorithm Based on Chaotic Proliferation Encryption

作　　者：牛永洁[1] 赵耀锋[2] 

机构地区：[1]延安大学计算中心,陕西延安716000 [2]延安大学教务处,陕西延安716000

出　　处：《计算机与现代化》2013年第6期95-99,共5页Computer and Modernization

基　　金：陕西省教育厅自然科学项目(11JK1054)

摘　　要：数字图像信息隐藏技术是近年信息隐藏技术中的热点研究课题,以数字图像作为载体的信息隐藏与传统加密方法不同,利用图像所具有的迷惑性产生的隐藏信息更能经受起恶意者的攻击。本文基于混沌扩散构建图像置乱隐藏算法,利用混沌加密密钥空间大和图像置乱隐藏性能好的双重特点,虽然牺牲一部分扩散加密效率,但安全性和隐藏性更好,更适合实际应用,充分体现了加密扩散性,增强了算法置乱能力。实验证明,该算法具有密钥空间大、隐藏效果好等特点。In recent years , digital image information hiding technology has been the hot research topics in digital image information hiding. Digital images as carriers of information hiding are not different from traditional encryption methods, the use of information hiding generated by images with the confusing can stand attacks from a malicious person. The combination of two-dimensional logistic encryption algorithm and digital image hiding algorithm uses a large space and image scrambling hidden characteristics. Although the expense of encryption is not efficiency, security and hidden are better, and it is more suitable for practical application, fully embodies the proliferation of encryption, enhances the ability of scrambling algorithm. The security analysis proves that the algorithm is of enough key space and good hideaway effect.

关 键 词：混沌 图像隐藏 BAKER映射 LOGISTIC映射 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]