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Secure and Distributed P2P Reputation Management

Jianli Hu, Quanyuan Wu, and Bin Zhou
Institute of Networks & Information Security, School of Computer, National University of Defense Technology, Changsha, China

Abstract—The open, sharing and anonymous nature ofpeer-to-peer (P2P) network has offered opportunities andthreats for the development of distributed computing technology.One feasible way to minimize threats is to establishthe reputation-based global trust model. Most of currenttrust mechanisms are not only unable to restrain effectivelysuch malicious behavior as collusive attacks, but also takeno consideration for the security of the trust management.As for these problems, this paper proposes a secure andeffective reputation based distributed P2P global trustmanagement model (DSRM), and presents its correspondingdistributed storage mechanism of reputation information,and security protection protocol. Theoretical analysis andsimulation experiments show that, DSRM has advantages incombating various malicious behaviors such as ordinarymalicious behaviors and collusions, and suppressing thesybil attackers and trust information tamper peers intransmission over the current global trust managementmodels, and demonstrates more robustness and effectiveness.

Index Terms—P2P, trust, reputation, security, storage

Cite: Jianli Hu, Quanyuan Wu, and Bin Zhou, "Secure and Distributed P2P Reputation Management," Journal of Communications, vol. 3, no.7, pp. 44-51, 2008.