一种抗合谋攻击的数字指纹方案*

作为一种新型的数字版权保护技术，数字指纹通过在出售给每个消费者的数字拷贝中秘密地嵌入一个唯一的序列码来实现版权保护与盗版者追踪的目的。一旦发现未授权的数字拷贝时，内容提供商能够通过所提取到的序列码追踪到相应的盗版者。提出了一种多媒体指纹方案，其中IPP(identifi able parent property)码被用来构造消费者的序列码，以抵抗多个消费者之间的合谋攻击。实验结果表明，该方案具有较好的抗合谋性能。

Anti-collusion attack digital fingerprinting scheme

As a new technology for protecting digital copyright,digital fingerprinting achieves copyright protecting and piracy tracing through embedding a unique serial number into each distributed digital copy sold to customer secretly.Once an unauthorized content copy is found somewhere,the embedded serial number can uniquely identify the source of the pirated copy.This paper proposed a digital fingerprinting scheme,where the IPP code was used to construct the customers' serial number to resist the collusion attack...