安全数字水印体系的研究

THE RESEARCH OF SECURE DIGITAL WATERMARKING ARCHITECTURE

数字水印是用于保护网络多媒体产品版权的一门热门新兴技术。随着对数字水印技术研究的深入,水印技术日趋成熟。但是算法的改进和优化仍然很难抵御五花八门的攻击方法,因此必须建立一套安全的数字水印体系标准来规范水印的加载和检测。该文基于IPR保护和认证体系IMPRIMATUR和AQUARELLE商业模型,提出了一个新的安全数字水印体系,该体系弥补了IMPRIMATUR和AQUARELLE所采用的DHWM水印协议的缺陷,而且更加简洁实用。

Watermarking, as a new technique mainly used for IPR protection and authentication, has become a research hotspot not long after its appearance. Many effective watermarking algorithms have been proposed. But the mature of watermark technology is not enough for IPR, protection. Confronted with current various attack method, a secure watermarking architecture must be built to standardize the whole process,, from watermark insertion to detection. The AQUARELLE system is a good example for showing how IMPRIMATUR-an architecture for IPR protection is operated. The secure flaws of IMPRIMATUR and AQUARELLE system watermarking protocol will also be pointed out. Further, a new secure watermarking architecture will be proposed. Its effectiveness will make up for the flaws mentioned above.