摘要
随着数字产品的推广,针对数字产品的版权保护得以受到重视。数字指纹技术是在数字水印的基础上发展起来的。其主要目的是,通过在数字产品中嵌入其独有的身份信息,在以后的追查盗版过程中,能够查获盗版的来源。以往所采用的指纹编码方法都是采用数学理论的思路来进行,而现在采用一种新的思路来解决数字指纹的抗合谋编码,即采用码分多址技术中消除多用户接入之间的干扰,这种干扰的来源之一是一种数字指纹的合谋攻击,消除这种干扰就可以消除此类合谋攻击。同时给出了数字指纹的抗合谋攻击编码框架及具体的实施步骤,并进行了深入的理论分析。
A new way is proposed to solve the anti-collusion code attack from legal digital fingerprint.The CDMA technology is employed to eliminate the interferences between multi-users access,and one of the interferences is that many legal users collude their digital fingerprint and generate another illegal digital fingerprint,and thus violate the copyright of the digital products.The elimination of interferences means the elimination of collusion attack.The framework of the anti-collusion digital fingerprint code and the specific implementation,including in-depth theoretical analysis,are given in this paper.
出处
《通信技术》
2011年第10期77-79,共3页
Communications Technology
关键词
合谋攻击
数字指纹编码
水印的嵌入及检测
collusion attack
digital fingerprint
embedment and extraction of watermarking
