Adaptive Peer-to-Peer Topologies
P2P '04 Proceedings of the Fourth International Conference on Peer-to-Peer Computing
Survey of research towards robust peer-to-peer networks: search methods
Computer Networks: The International Journal of Computer and Telecommunications Networking
Peer-to-Peer Networks Security
ICIMP '08 Proceedings of the 2008 The Third International Conference on Internet Monitoring and Protection
A Global Trust Model of P2P Network Based on Distance-Weighted Recommendation
NAS '09 Proceedings of the 2009 IEEE International Conference on Networking, Architecture, and Storage
Constructing efficient peer-to-peer overlay topologies by adaptive connection establishment
Computer Communications
Evaluation of P2P search algorithms for discovering trust paths
EPEW'07 Proceedings of the 4th European performance engineering conference on Formal methods and stochastic models for performance evaluation
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The existing search mechanisms for peer-to-peer (P2P) networks have several problems such as fake content distribution, free riding, whitewashing and poor search scalability. Although, researchers have proposed several trust management and semantic community-based mechanisms for combating free riding and distribution of malicious contents, most of these schemes lack scalability due to their high computational, communication and storage overhead. This paper presents a trust management scheme for P2P networks that utilizes topology adaptation by constructing an overlay of trusted peers where the neighbors are selected based on their trust ratings and content similarities. It also increases the search efficiency by taking advantage of the implicit semantic community structures formed as a result of topology adaptation since most of the queries are resolved within the community of trustworthy peers. Simulation results demonstrate that the proposed scheme provides efficient searching to good peers while penalizing the malicious peers by increasing their search times.