P2P环境下信任模型研究

P2P网络的开放性和匿名性为攻击者蔓延恶意内容提供了一种理想的方式.因此,对于P2P网络而言,信任模型是非常必要的.提出的信任模型中,用户评价交易方并将其存储在本地数据库中,然后和其他节点共享数据库中的信息.该模型还能够建立善意节点之间的信任,并且能够识别恶意节点.模拟实验表明,提出的信任模型在阻止P2P网络中恶意内容蔓延方面是非常有效的,且具有较好的工程可行性.

Research on Trust Model in P2P Environments

The open and anonymous features of P2P network provide an ideal medium for attackers to spread malicious content.Therefore,trust model is necessary for P2P network.In the trust model to be presented,users rate the reliability of parties they deal with,store them in the local database,and share this information with other peers.The model helps establishing trust among good peers as well as identifying malicious ones.The simulation experiment shows that the proposed model can be highly effective in preventing the spread of malicious content in P2P networks and perform well in the project.