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构造分布式P2P环境下抗攻击信任管理模型
引用本文:田春岐,邹仕洪,王文东,程时端.构造分布式P2P环境下抗攻击信任管理模型[J].北京邮电大学学报,2007,30(3):62-65.
作者姓名:田春岐  邹仕洪  王文东  程时端
作者单位:北京邮电大学,网络与交换技术国家重点实验室,北京,100876;北京邮电大学,网络与交换技术国家重点实验室,北京,100876;北京邮电大学,网络与交换技术国家重点实验室,北京,100876;北京邮电大学,网络与交换技术国家重点实验室,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:提出了一种基于推荐机制的抗攻击的P2P信任管理模型,该模型采用可信度加权各个推荐信息,并给出了普遍适用的、具体量化可信度的数学方法。考虑到节点的自主行为及恶意节点的存在,节点的信任度计算被分为两部分,即信誉值和惩罚值。本文还提出了抑制诸如诋毁、合谋欺诈等恶意节点攻击的措施。后续实验证明了本模型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  信任  可信度  局部信任度
文章编号:1007-5321(2007)03-0062-04
收稿时间:2006-07-27
修稿时间:2006-07-19

A new attack resistant trust model for distributed P2P networks
TIAN Chun-qi,ZOU Shi-hong,WANG Wen-dong,CHENG Shi-duan.A new attack resistant trust model for distributed P2P networks[J].Journal of Beijing University of Posts and Telecommunications,2007,30(3):62-65.
Authors:TIAN Chun-qi  ZOU Shi-hong  WANG Wen-dong  CHENG Shi-duan
Affiliation:State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
Abstract:A novel trust model for peer to peer(P2P) networks based on recommendation is proposed.The mathematic formulas for rating the local trust value of a peer and updating referrals are presented.Considering the dynamic behaviors of a peer in P2P environments,the computation of the trust value for a peer consists of two parts: reputation value and penalty value.Experimental results show that the proposed model is more robust on trust security problems and more advanced in successful transaction rate compared with the current some trust models,the proposed model is more robust on trust security problems and more advanced in successful transaction rate.
Keywords:peer-to-peer  trust  credibility  local trust value
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