摘要
近似于人际关系网络,P2P文件共享交易存在着相互信任的问题.服务请求节点和服务提供节点是参与文件共享交易的两类实体,通过分析两者的信任关系,提出一种双向并发信任机制-BPTM.该信任机制研究交易双方的相互信任问题,并在此基础上建立服务选择信任模型和服务确认信任模型,实施信任关系评估的双向化.仿真与分析表明,BPTM相比传统的单向信任机制,在交易成功率上有较大的改进,可使节点之间更有效的建立互信关系.
Similar to the interpersonal relationship network,the issue of mutual trust exists in P2P file-sharing transactions.Through analyzing the trust relationship between requesting peers and providing peers involving in P2P file-sharing transactions,a bidirectional parallel trust mechanism,called BPTM,is proposed.This mechanism deals with the problem of mutual trust between requesting peers and providing peers,on the basis of which the trust model of service selection and the trust model of service response are constructed to perform the bidirectional evaluation of trust relationship.The simulation and analysis show that BPTM is more advanced in successful transaction rate than traditional unidirectional trust mechanism.So the trust mechanism can perform much better in establishing mutual relationships among peers.
出处
《微电子学与计算机》
CSCD
北大核心
2011年第2期120-123,共4页
Microelectronics & Computer
基金
国家自然科学基金项目(60875081)
河南省科技发展计划项目(092102210264)
关键词
对等网络
文件共享
双向并发信任
pere-to-pere network
file-sharing
bidirectional parallel trust
