一种基于ECC的公钥数字水印模型及方案

A System of Public Key Digital Watermark based on ECC

分析了当前数字水印模型中存在的问题,运用密码学的研究热点椭圆曲线加密体制,提出一种基于ECC的公钥数字水印改进模型,并在模型基础上构建了一套引入中央监管机构IPR的数字水印方案。该方案类似于公钥加密系统,具有两个水印,任何人都可通过公开水印验证图像的版权信息,与现有的数字水印方案相比该方案具有抵抗解释性攻击和进行盗版追踪的优点。实验结果表明该方案对常见的图像处理的攻击是稳健的。

The problems exsit in the model of current digital watermark were analysed. Then a improved model of public key digital watermark based on ECC was carried out and a system of digital watermark which central supervised organization is introduced into was established based on the model. The system has two watermarks similar to the public key encryption systems. Any one can verify the copyright information of image. The system has two advantages, one is that it can resist attack of explanation, and the other is that it can pursue pirate. The result of experimentation proves the system is solidty to deal with the usual images.