P2P Scrabble. Can P2P Games Commence?
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
Securing Ad Hoc Storage through Probabilistic Cooperation Assessment
Electronic Notes in Theoretical Computer Science (ENTCS)
Design of Application-Specific Incentives in P2P Networks
DS-RT '08 Proceedings of the 2008 12th IEEE/ACM International Symposium on Distributed Simulation and Real-Time Applications
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Corporate IT as well as individuals show increasing interest in reliable outsourcing of storage infrastructure. Decentralized solutions with their resilience against partial outages are among the most attractive approaches. Irrespective of the form of the relationship, be it based on a contract or on the more .exible cooperative model, the problem of verifying whether someone promising to store one's data actually does so remains to be solved, especially in the presence of multiple replicas. In this paper, we introduce a lightweight mechanism that allows the data originator or a dedicated verification agent to build up trust in the replica holder by means of protocols that do not require prior trust or key establishment. We show how naive versions of the protocol do not prevent cheating, and then strengthen it by adding means that make it economically attractive to be honest. This provides a foundation for further work in providing trustworthy distributed storage.