Authentication-free fault-tolerant peer-to-peer service provisioning

摘要: The correct functioning of a peer-to-peer network relies on cooperative behavior peers as service providers. Current approaches to detection and deterrence non-cooperative behavior, such reputation systems, rely (1) global sharing observations about provisioning (2) authentication. These two factors severely impair the practical applicability. We propose novel forward feedback protocol that is completely local authentication-free where locally independently learn avoid routing failures. evaluate our system in variety failure scenarios. convergence rates resilience are close those fully centralized system. High churn tolerated without significant drop performance. For increased fault tolerance takes advantage replicas existing network. proposed lightweight can readily be integrated into any architecture requests recursively routed, which includes all modern structured overlays.