摘要： 改进P2P网络下基于信任模型的数字版权管理(DRM)模型，提出一种P2P网络下基于友元节点的DRM模型。继承Shamir的 k阶门限分发私钥份额方法，使用友元节点来存放私钥份额，避免由于使用信任模型所带来的计算复杂度和网络通信量较大的问题。分析与仿真实验结果表明，与基于信任模型的DRM模型相比，该模型能减少节点间的消息通信量，计算效率和实用性得到很大提高。
关键词:
数字版权管理,
点对点,
友元节点,
许可证
Abstract: This paper improves the Digital Rights Management(DRM) model which based on the trust model in P2P networks, puts forward a DRM model based on friend peer in P2P networks. This model employs Shamir’s k-threshold secret sharing method, uses friend peer storing private key share, and consequently avoids the problems raised by using the trust model. Analysis and simulation experimental results show that, compared with the DRM model based on the trust model, the information traffic among peers of this model can reduce greatly, and the computational complexity and practicality have been greatly improved.
Key words:
Digital Rights Management(DRM),
Peet to Peer(P2P),
friend peer,
license
中图分类号:
孟宪福;李 莉. P2P网络下基于友元节点的DRM模型[J]. 计算机工程, 2009, 35(16): 148-150.
MENG Xian-fu; LI Li. DRM Model Based on Friend Peer in P2P Networks[J]. Computer Engineering, 2009, 35(16): 148-150.