数字水印的确定性攻击方法及其解决方案  

Aimed Attack Method and Its Resolvent in Watermarking

作　　者：袁源[1] 丁莹[1] 李炳法[1] 

机构地区：[1]四川大学计算机学院,四川成都610065

出　　处：《计算机应用研究》2005年第3期141-143,146,共4页Application Research of Computers

摘　　要：在分析了常用的数字水印添加算法和攻击方法后,提出了一种新的攻击方法:带确定性的水印攻击方法。该方法是指恶意攻击者在知道了水印添加所用的水印域和添加公式后根据已有的知识进行的破坏性攻击。试验表明,如果水印算法没有明确设计抵御这种攻击,是很容易被这种攻击所破坏的。通过对确定性攻击的分析,提出了这种攻击方法的解决方案,并通过试验表明提出的解决方案对这种攻击表现出很好的鲁棒性。This paper analyses some common using watermarking algorithms, then shows a new attack method: aimed attack method in watermarking.Aimed attack method is a kind of method that attackers use to do vicious damage with current knowledge, when they know the watermark domains and embeding equations in the embed watermarking. Experiments show that if there is no definite design to resist these attacks, watermark embedded in the data can be destroyed easily. By analyzing these attacks, a resolvent is produced, which is robust against these attacks in the experiments.

关 键 词：数字水印 确定性攻击 水印域 值段 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]