Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (20): 115-117.DOI: 10.3778/j.issn.1002-8331.2009.20.035

• 网络、通信、安全 • Previous Articles     Next Articles

Trust model in P2P network based on time factor and punitive measures

YU Hong-tao1,ZHANG Jin-hui1,ZHONG Zheng2   

  1. 1.Information Science and Engineering Institute of Yanshan University,Qinhuangdao,Hebei 066004,China
    2.College of Computer,National University of Defense Technology,Changsha 410073,China
  • Received:2008-04-23 Revised:2008-07-22 Online:2009-07-11 Published:2009-07-11
  • Contact: YU Hong-tao

基于时间因子和惩罚措施的P2P网络信任模型

于洪涛1,张金辉1,钟 正2   

  1. 1.燕山大学 信息科学与工程学院,河北 秦皇岛 066004
    2.国防科学技术大学 计算机学院,长沙 410073
  • 通讯作者: 于洪涛

Abstract: This paper presents a trust model in P2P networks which is based on time factor and punitive measures.When it carries on the node trust value evaluation,it has considered the time factor to influence the trust value.As farther the transactions time away from the current time,the transactions are less value in the trust evaluation.When the transaction defeats or has the deceit,the target node will be punished.Theoretical analysis and simulation experiments show that the model can well reflect the current status of nodes,and can resist the deceit of false recommend.

Key words: Peer-to-Peer, time factor, punitive measures, trust model

摘要: 提出了一种基于时间因子和惩罚措施的信任模型,在进行节点信任值评定时,考虑了时间因子对信任值的影响,距离当前时间越远的交易行为在信任值评定时的参考价值越小。当交易失败或发生欺骗时,目标节点会受到惩罚。理论分析和仿真实验表明,该模型能很好地反映节点的当前状态,并能抵御虚假推荐进行的欺骗。

关键词: 对等网, 时间因子, 惩罚措施, 信任模型