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TrustRRep: An Improved Reputation Management Scheme for Reliable Resource Sharing in Peer-to-Peer Networks

  • Junghwa Shin
  • Taehoon Kim
  • Sungwoo Tak
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5297)

Abstract

Inauthentic resources can be easily spread by peers due to the openness and anonymity of P2P networks. A possible way to restrict the distribution of inauthentic resources and prevent malicious peers from joining P2P networks is to exploit a reputation which reflects peers’ past behaviors. There is a possibility that a peer intentionally plays along with other peers in order to increase/decrease its reputation through dishonest feedback exchanges. Therefore, we propose a new reputation management scheme, called TrustRRep (Trustworthy Resource sharing using Reputation), which improves the trustworthiness and efficiency of P2P networks. We implemented the TrustRRep scheme on the NS-2 simulator for evaluating its performance compared to the recent reputation management work available in literature. A case study on simulations shows that the TrustRRep scheme yields efficient performance in terms of the minimal download ratio of inauthentic resources, the computation error of trust value and the success ratio of download request.

Keywords

P2P Reputation Dishonest feedback 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Junghwa Shin
    • 1
  • Taehoon Kim
    • 1
  • Sungwoo Tak
    • 1
  1. 1.School of Computer Science and EngineeringPusan National UniversityBusanRepublic of Korea

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