基于水印的数据库自适应信息隐藏算法  

Adaptive Information Hiding Algorithm for Database Based on Watermark Technology

作　　者：黄冬梅[1] 朱仲杰[2] 王玉儿[1] 

机构地区：[1]上海水产大学信息学院,上海200090 [2]浙江万里学院宁波市DSP重点实验室,宁波315100

出　　处：《计算机工程》2008年第18期191-193,共3页Computer Engineering

基　　金：国家自然科学基金资助项目(60472100);国家"863"计划基金资助项目(2006AA102239-1);宁波市自然科学基金资助项目(2006A6100013)

摘　　要：提出一种基于水印的自适应信息隐藏算法用于数据库的知识产权保护。算法根据数据库中原始数据的特点自适应地选择最佳嵌入方案,使水印的嵌入对数据库的影响降到最低,利用纠错编码技术和多数选举原理提高算法的稳健性。实验仿真结果表明,该算法满足不可见和盲检特性,对子集删除、增加、更新等常见攻击具有良好的抵抗能力。A watermark-based adaptive information hiding algorithm is proposed for the Intellectual Property Rights（IPR） protection for database. The algorithm adaptively chooses an optimal embedding scheme according to the characteristics of the data to make the degradation due to the watermark embedding to be smallest. And the error-correcting coding technology and the majority voting principle are employed to improve the algorithm＇s robustness. Experimental results reveal that the algorithm can meet the requirements of invisibility and blind detection as well as good resistance to conventional attacks such as subset deleting, adding, and updating.

关 键 词：数据库水印 知识产权保护 鲁棒性 不可见性 自适应算法 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]