基于超级节点的P2P信任模型  

P2P Trust Model Based on Super Node

作　　者：吴海珍[1] 陈沅涛[1] 

机构地区：[1]长沙理工大学计算机与通信工程学院,长沙410076

出　　处：《计算机工程》2009年第11期95-97,100,共4页Computer Engineering

基　　金：湖南省自然科学基金资助项目(06JJ50109);湖南省科技计划基金资助项目(06FJ3161);湖南省教育厅科学研究基金资助项目(07C081)

摘　　要：提出基于超级节点的P2P网络信任模型SuperTrust,其中,超级节点的信任度由群组内所有节点对其进行评价,普通节点利用本地的局部信任信息与所属群组的推荐信任信息确定目标节点的信任度,同时利用反馈信息过滤算法来过滤恶意节点提供的不公正评价。仿真结果表明,该信任模型能有效识别恶意节点,使P2P网络中的合作节点在不同的恶意节点攻击模式下具有较高的成功交易率。A super node based trust model for P2P networks, SuperTrust, is put forward. In SuperTrust, the trust value of a peer from the viewpoint of another in a group is computed based on the reputation, while that of a super peer in the group is evaluated by global trust value. A filtering algorithm is proposed to filter fake, useless and misleading ratings. Simulation result indicates that this trust model can distinguish the malicious node effectively, causes in the P2P network to cooperate the node to have the high success transaction rate under the different malicious node attack pattern.

关 键 词：超级节点 过滤算法 信任度 成功交易率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]