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一种新的基于改进型D-S证据理论的P2P信任模型
引用本文:田春岐,邹仕洪,王文东,程时端.一种新的基于改进型D-S证据理论的P2P信任模型[J].电子与信息学报,2008,30(6):1480-1484.
作者姓名:田春岐  邹仕洪  王文东  程时端
作者单位:1. 北京邮电大学网络与交换技术国家重点实验室宽带网研究中心,北京,100876;同济大学电子与信息工程学院计算机科学与技术系,上海,200092
2. 北京邮电大学网络与交换技术国家重点实验室宽带网研究中心,北京,100876
基金项目:国家重点基础研究发展计划(973计划) , 国家自然科学基金
摘    要:在大规模对等网(P2P)文件共享环境中,节点之间信任问题亟需解决.该文提出一种基于改进型D-S证据理论的P2P信任模型,给出了该模型的数学分析和抑制各类恶意节点攻击的措施.实验证明该算法较已有的一些信任机制在系统成功交易率、模型的安全性等问题上有较大改进.

关 键 词:对等网  D-S证据理论  信任  局部信任度  改进  证据理论  信任模型  Networks  Evidence  Theory  Advanced  Based  信任问题  安全性  交易  系统  信任机制  算法  验证  数学分析  节点  共享环境  文件  对等网  大规模
文章编号:1009-5896(2008)06-1480-05
收稿时间:2006-11-13
修稿时间:2006年11月13

A New Trust Model Based on Advanced D-S Evidence Theory for P2P Networks
Tian Chun-qi,Zou Shi-hong,Wang Wen-dong,Cheng Shi-duan.A New Trust Model Based on Advanced D-S Evidence Theory for P2P Networks[J].Journal of Electronics & Information Technology,2008,30(6):1480-1484.
Authors:Tian Chun-qi  Zou Shi-hong  Wang Wen-dong  Cheng Shi-duan
Affiliation:Broadband Network Research Center, State Key Lab of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China;Department of Computer Science and Technology, College of Electronic and Information Engineering, Tongji University, Shanghai 20092, China
Abstract:Trust relationship between participants is indispensable to set up in a large-scale distributed P2P file-sharing system. A novel trust model for P2P system based on advanced D-S theory of evidence is proposed in this paper to solve this problem, in which mathematic analysis and some measures are presented to defense against several malicious attacks. The experimental results show that, compared to the current some trust models, the proposed model is more robust on trust security problems and more advanced in successful transaction rate.
Keywords:P2P  D-S theory of evidence  Trust  Local trust value
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