【摘要】 随着数字水印技术在数字版权保护方面的应用,对数字水印的攻击也日益严重,早期的水印攻击主要是针对水印算法鲁棒性的攻击,近几年来出现了针对数字版权保护过程中协议的攻击。通过对协议攻击的描述、定义和分析,将数字签名等技术应用到数字版权保护方案中,提出一个基于PKI(publickeyinfrastructure)的数字版权保护安全方案,分析讨论了该方案的安全性。更多还原

【Abstract】 The attacks on digital watermarking increasingly become serious, with the application of digital watermarking on digital copyright protection. The attacks focus on the robustness of watermarking algorithm early, but in the recent year, the attacks focus on the protocol about the process of digital copyright protection. Through the description, definition and analysis on the protocol attacks, digital signature is applied to digital copyright protection schemes. A digital copyright protection security scheme based on PKI is presented with the analysis of security.更多还原