基于Logistic映射的排列图软件水印方案  

Logistic-based Permutation Watermark System

作　　者：孙小雁[1] 张茂胜[2,3,4] 冯在文[4,5] 尹黎明[3,4] 

机构地区：[1]玉林师范学院计算机科学与工程学院,玉林537000 [2]玉林师范学院数学与信息科学学院,玉林537000 [3]武汉大学国家多媒体软件工程技术研究中心,武汉430079 [4]武汉大学计算机学院,武汉430072 [5]武汉大学软件工程国家重点实验室,武汉430072

出　　处：《科学技术与工程》2013年第5期1200-1204,共5页Science Technology and Engineering

基　　金：国家自然科学基金(61100017);广西壮族自治区教育厅立项项目(201106LX513;201106LX516);玉林师范学院重点项目(2012YJZD17)资助

摘　　要：针对排列图编码鲁棒性较差的问题,提出使用Logistic映射生成软件水印的算法。根据版权所有者信息和合法用户信息生成初始值,通过Logistic映射计算混沌序列并生成水印信息。版权所有者随机生成排列图长度后将水印信息用排列图表示并嵌入宿主程序当中。提取排列图后,根据排列图相似度,在拓扑图受到攻击的情况下仍然可以证明版权。实验仿真证实该算法能够抵抗常见攻击,提高排列图的鲁棒性。To solve the problem that the permutation graphic is too weak, a logistic-based watermark algorithm is proposed. On the basis of information about the copyright owner and legal user, initial value for logistic map is calculated and then chaotic sequences and watermark value are computed. After choosing the length of permutation graphic randomly, the copyright owner generates permutation graphic to embed into host program. According to similarity rate extracted from host program, the ownership of host program is identified even though the permutation graphic was attacked. The experimental results and theoretical analysis show that this scheme is more robust than traditional permutation graphic system and can resist common attacks.

关 键 词：软件水印 排列图 鲁棒性 混沌 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]