基于超级节点的P2P信任模型-TSN  

New P2P Trust Model Based on Super Node

作　　者：范会波[1] 张新有[1] 

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610031

出　　处：《微电子学与计算机》2011年第9期77-81,共5页Microelectronics & Computer

基　　金：国家自然科学基金项目(U0970122);中央高校基本科研业务费专项资金科技创新项目(SWJTU09CX040)

摘　　要：提出一种基于超级节点的P2P信任模型TSN.改进了模型节点加入、节点信任值的计算方法.在模型中综合考虑了节点兴趣相似度和节点响应时延等因素,并通过调节直接信任和间接信任的权重,提高了信任值计算的精确性.采取了相应的健壮性策略,增强了模型的抗攻击能力.仿真结果表明,与已有的信任模型相比,该模型具有较高的成功请求率和系统安全性.This paper analysis features and defect about these model existed,propose a trust model based on super node named TSN（Trust Super Node）,Improve these algorithms about joining of node,trust degree of peers between groups.Peers＇ similarity and response delay are considered to trust calculation,and weights for direct trust and indirect trust are dynamically adjusted.Strategies are considered for model＇s robustness.The simulation shows that propose model has advantages in successful request and system security over the exiting P2P trust models.

关 键 词：P2P 信任模型 超级节点 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]