The case for an object-based peer-to-peer reputation system

Clients in any large peer-to-peer system must continually make trust decisions regarding the objects, services, and peers in the network, and so require robust mechanisms for making informed decisions. The lack of such reputation mechanisms for peer-to-peer filesharing has resulted in a large fraction of malicious files, spam and decoys in deployed networks, and contributes to both the spread of malware and contention for local and network resources.