摘要： 现有的数字指纹协议主要基于Buyer-Seller模型，卖方拥有数字产品的原始拷贝，在数字产品中嵌入与买方相关的数字指纹，出售给买方。如果卖方发现了非法拷贝，根据提取出的指纹跟踪非法的买方。该文介绍了有别于Buyer-Seller模型的二次分发模型，在此模型基础上，引入防篡改硬件和对称嵌入技术，提出了一种可用于在线交易的、安全高效的数字指纹协议。

关键词: 二次分发, 防篡改硬件, 数字指纹

Abstract: The available fingerprinting protocols are mainly based on the Buyer-Seller model. In the Buyer-Seller model, the seller is the holder of the original copy of the digital product. He embeds the fingerprinting relative to the buyer to make a new copy and sell the new copy to the buyer. When an illegal copy is found, the seller can extract the fingerprinting to trace the illegal buyer. This paper introduces a different model, the secondary distribution mode. Based on the new model, it employs tamper-proof hardware and symmetric encryption technology to design a secure and efficient digital fingerprinting protocol which can be used for on-line trade.

Key words: secondary distribution, tamper-proof hardware, digital fingerprinting

中图分类号: 

• TP309