非对称水印

Asymmetric Watermarking Schemes

由于密码学和数字水印技术在产权保护等方面有着相互补充的功能和一些类似之处,人们开始将加密技术中的“密钥”引入水印技术中,从而出现了公开密钥水印和非公开密钥水印。只是当将公开密钥的“思想”引入水印后,才对水印的基本方式和理解进行了改变,这就是“非对称水印”。论文从非对称水印产生的必然性等方面对非对称水印进行比较深入的探讨,指出它与传统水印技术的不同之处及优点,同时指出当前它的发展现状及不足。

Many researchers have introduced the encryption concept secret key to digital watermarking schems due to the similarity to the function of copyright protection between digital watermarking and common cryptographic means,and to these two fields can tremendously benefit from each other if properly combined.At earlier this was directional,and public key watermarking and private key watermarking arise since using public key encryption and private key encryption accordingly.However,only the ideal of public key was used in watermarking new approach on digital watermarking appearance-asymmetric watennarking.In this paper, the authors will research on asymmetric watermarking schemes in depth,and point out the difference between asymmetric watermarking and traditional watermarking,its advantage,and its limitations.