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P2P网络中的主机可以相互共享彼此主机的硬盘上的文件、目录,甚至整个硬盘,可以使互联网上信息的价值得到极大的提升,P2P网络的安全问题制约着P2P网络的普及应用。基于信誉的安全机制是普遍采用的一种策略,本文介绍了基于信誉机制的P2P安全策略的模型、信任度的计算及其一般原则,以及一些改进的安全机制。
The hosts in P2P networks can share the files, directories and even the entire hard disk of each other’s hosts with each other, which can greatly enhance the value of the information on the Internet. The security of P2P networks restricts the popularization and application of P2P networks. Based on the credibility of the security mechanism is a commonly used strategy, this paper introduces the trustworthiness mechanism based P2P security policy model, the calculation of trust and its general principles, as well as some improved security mechanisms.