数字水印的攻击方法

THE ATTACK METHODS OF DIGITAL WATERMARKING

数字水印是近两年来出现的数字产品版权保护技术,目的是保护数字产品的合法拷贝和传播,是当前国际学术界的研究热点。数字水印包括算法设计和攻击技术两方面,它们是互相促进的对立面。本文简单讨论了数字水印的概念和应用,全面分析总结了当前数字水印的各种攻击方法,提出了数字水印下一步的发展方向,对改进和设计水印算法具有重要的指导作用。

Digital watermarking is a technique, which protects digital product copyright and does not appear until two years ago. And its goal is to protect legal copy and distribution of digital product, it has been the hotspot of international academia. Digital watermarking includes algorithm design and attack technique, which are contrarily promoting each other. In this paper the concept and applications of digital watermarking are briefly discussed, the current various attack methods are fully analyzed and summarized. Several directions of development of digital watermarking at next stage are proposed. These are of great importance to improve and design watermarking algorithm.