A Reputation Management System in Structured Peer-to-Peer Networks

Since there is no method to verify the trustworthiness of shared les in P2P systems, malicious peers can spread un-trustworthy les to the system. In order to prevent untrust-worthy les from spreading, we propose an effective rep-utation management system using peer reputation and le reputation together in DHT-based structured P2P networks. Simulation results show that the proposed reputation system works better in preventing untrustworthy les from spread-ing than existing systems even in cases of allowing mali-cious peers to change their identities. 1