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

Authors:
Junghwa Shin;Taehoon Kim;Sungwoo Tak
Affiliations:
School of Computer Science and Engineering, Pusan National University, Busan, Republic of Korea 609-735;School of Computer Science and Engineering, Pusan National University, Busan, Republic of Korea 609-735;School of Computer Science and Engineering, Pusan National University, Busan, Republic of Korea 609-735
Venue:
APNOMS '08 Proceedings of the 11th Asia-Pacific Symposium on Network Operations and Management: Challenges for Next Generation Network Operations and Service Management
Year:
2008

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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.