Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (20): 124-127.

• 网络、通信与安全 • Previous Articles     Next Articles

Distinguishability of penalty based trust model for P2P systems

WAN Jun-zhou,YANG Bo,ZHANG Ming-wu,YIN Jian-jun   

  1. School of Information,South China Agriculture University,Guangzhou 510642
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-07-11 Published:2007-07-11
  • Contact: WAN Jun-zhou


万军洲,杨 波,张明武,殷建军   

  1. 华南农业大学 信息学院,广州 510642
  • 通讯作者: 万军洲

Abstract: In this paper,it presents a distinguishability of penalty based trust model,named DPTrust,in which the duration of penalty is determined in terms of peers credility level in a latest time window,as a result,both kinds of peers has been distinguished.Mathematic analysis and simulation experiments show that,the proposed model can improve incentives for peers and total payoffs of P2P systems effectively.

Key words: Peer-to-Peer network, reputation model, repeated games, penalty strategy

摘要: 提出了一种具有惩罚水平区分度的重复博弈信任管理模型DPTrust,对节点的非合作行为,依据其在最近时间窗口中的信用级别,施加不同时长的惩罚期,从而区分了善意节点的“偶尔犯错”和恶意节点的“故伎重演”及摇摆等行为。理论分析和仿真实验表明,该系统有效地提高了P2P节点诚实交易的积极性和系统的整体效率。

关键词: 对等网络, 信誉模型, 重复博弈, 惩罚策略