基于信任社区的P2P资源共享模型设计

P2P软件在资源共享中存在大量管理的漏洞,其主要原因是无法准确而高效的进行信任管理。通过对信任评估指标体系的划分,提出了一种信任社区的概念,即具有相同或相近评估指标的节点组成一个信任社区,在节点发送资源请求信息时,首先在信任社区内进行搜索,保证了得到的信任信息的可靠性。同时,为了更准确的计算信任值,本文还引入了时间衰减函数。

Design of Resource Sharing Model Based on Trust Community

P2P software has lots of management disadvantages in resource-share.The main reason is that we have no way to trust manage in P2P exactly and efficiently.The trust evaluation index is listed,and a new concept called trust community is proposed.In a trust community,there are lots of peers which have the same or similar trust evaluation index.When a peer requires some resources,it just send the required message to some peers in the same trust community,thus,the reliability of the trust can be guaranteed.To compute the trust exactly,a function named time decay is introduced as well.