A New Buyer-Seller Watermarking Protocol Without Double Embedding  

作　　者：曾鹏 曹珍富 林煌 

机构地区：[1]Department of Computer Science and Engineering, Shanghai Jiaotong University [2]Shanghai Key Laboratory of Trustworthy Computing, East China Normal University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2010年第4期397-402,共6页上海交通大学学报（英文版）

基　　金：the National Natural Science Foundation of China (Nos. 60970110, 60972034 and 60773086);the National Basic Research Program (973) of China(No. 2007CB311201);the Shanghai Leading Academic Discipline Project (No. B412)

摘　　要：Copy deterrence is a digital watermarking application which enables a seller to identify the buyers who obtain digital content legally but illegally redistribute it. However, in many buyer-seller watermarking protocols proposed for copy deterrence, the seller has to embed two watermarks into each copy of the digital content before it is sold. In this paper, we propose a new buyer-seller watermarking protocol in which the seller can reduce the number of the embedded watermarks from two to one. The proposed protocol also provides a more efficient solution to the unbinding problem than that of Lei et al＇s scheme.<Abstract>Copy deterrence is a digital watermarking application which enables a seller to identify the buyers who obtain digital content legally but illegally redistribute it. However, in many buyer-seller watermarking protocols proposed for copy deterrence, the seller has to embed two watermarks into each copy of the digital content before it is sold. In this paper, we propose a new buyer-seller watermarking protocol in which the seller can reduce the number of the embedded watermarks from two to one. The proposed protocol also provides a more efficient solution to the unbinding problem than that of Lei et al’s scheme.

关 键 词：copy deterrence watermarking protocol double embedding 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]