一种多维因子相关的P2P路由信任模型  

A Trust Model with Multidimensional Factor for P2P Routing

作　　者：谭振华[1] 程维[1] 朱志良[1] 王兴伟[2] 

机构地区：[1]东北大学软件学院,辽宁沈阳110004 [2]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2010年第11期1574-1577,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(70671020;70931001;60802023);国家科技支撑计划项目(2008BAH37B03;2008BAH37B07);教育部高等学校博士学科点专项科研基金资助项目(20070145017);中央高校基本科研业务费专项资金资助项目(N090504003;N090504006)

摘　　要：针对P2P节点的匿名性和隐蔽性易导致恶意节点滋生的问题,基于社会网络的一些基本理论,提出了一种新的P2P分布式信任模型MFTrust.提出了涉及时间因子、通信成功率因子、通信频率因子和评价的局部信任度模型和全局信任模型;设计了节点通信历史相关性因子,针对全局信任度提出了相关性信任度模型.仿真分析表明,MFTrust模型具有快的信任收敛速度,在路由过程中能有效区分恶意节点.To solve the problem that the anonymity and concealment of P2P nodes are liable to bring on vicious nodes,a new distributed trust model named MFTrust was developed on some social network principles for P2P networks. Both global and local trust models were developed involving such multidimensional factors as time,measure of success in transmission transmitting frequency and appraisals for relevant nodes. Designing the historical correlation factor of communication between nodes and based on the global trustiness,a correlation trust model was developed. Simulative analysis showed that the MFTrust model is quicker at trust convergence rate than conventional local and global trust models and available to distinguish the attack from vicious nodes effectively during routing.

关 键 词：P2P信任模型 相关性信任度 P2P安全 节点通信历史 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]