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BaRMS: A bayesian reputation management approach for P2P systems

Long, X and Joshi, J (2011) BaRMS: A bayesian reputation management approach for P2P systems. In: UNSPECIFIED.

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Abstract

Current distributed Peer-to-Peer (P2P) applications offer a variety of flexible and convenient services through the Internet to users from different geographic locations and also support enhanced communications and interactions among them. However, security and trust are the key concerns in such applications as users in such an environment are typically unknown to each other. Trust management systems aim to decrease the risks in such applications and protect benign users from malicious users. In this paper, we introduce six attack models and propose a novel Bayesian Reputation Management System (BaRMS) for P2P environments using Bayesian probability and Markov Chain theories. BaRMS handles both positive and negative feedback. Through a case study, we show that this approach is better than the existing EigenTrust framework for P2P systems. Moreover, our simulation results of a P2P file sharing system also show that the proposed algorithm can greatly improve the performance over a system that does not include a trust management service under various attack models. We show that our proposed Bayesian Reputation Computation Algorithm (BaRCA) performs better than the EigenTrust algorithm under various models. © 2011 World Scientific Publishing Co.


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Details

Item Type: Conference or Workshop Item (UNSPECIFIED)
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Long, Xxul10@pitt.eduXUL10
Joshi, Jjjoshi@pitt.eduJJOSHI0000-0003-4519-9802
Date: 1 December 2011
Date Type: Publication
Journal or Publication Title: Journal of Information and Knowledge Management
Volume: 10
Number: 3
Page Range: 273 - 283
Event Type: Conference
DOI or Unique Handle: 10.1142/s0219649211002985
Institution: University of Pittsburgh
Schools and Programs: School of Information Sciences > Telecommunications
Refereed: Yes
ISSN: 0219-6492
Date Deposited: 12 Jul 2011 13:27
Last Modified: 01 May 2020 12:55
URI: http://d-scholarship.pitt.edu/id/eprint/6026

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