A trust model of p2p system based on confirmation theory

  • Authors:
  • Hou Mengshu;Lu Xianliang;Zhou Xu;Zhan Chuan

  • Affiliations:
  • College of Computer Science and Engineering of UEST of China, Chengdu, China;College of Computer Science and Engineering of UEST of China, Chengdu, China;College of Computer Science and Engineering of UEST of China, Chengdu, China;College of Computer Science and Engineering of UEST of China, Chengdu, China

  • Venue:
  • ACM SIGOPS Operating Systems Review
  • Year:
  • 2005

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Abstract

The feature of the peer-to-peer system such as user anonymity, open nature makes that some peers are not responsible for their distributing inauthentic information. An effective solution is that set up the trust model in the p2p system. This paper presents a novel global trust model based on confirmation theory. The reputation of peers is calculated by C-F model according the bartering history, and then the peer decides to download the sharing file from which the peer has good reputation. Analyses and simulations show that this trust model can discard the malicious peer from p2p system effectively and improve the rate of successful barter greatly.