On the Fair Resource-Sharing in Large Peer-to-Peer Systems

Accountability is becoming a major concern for the Internet. Wide spread of misconduct by profit driven hackers makes trust (faith)-based applications vulnerable to malicious attacks. An evidence based resource management system can guarantee that collaborative parties will share their resources based un-deniable evidence, so that community members cannot abuse their privileges without being caught. In this paper we propose fair resource sharing scheme for peer to peer (P2P) networks based on modified e-coin algorithms. A computing node joins a resource sharing community through the initial brokerage of a credential authority, which issues unforgeable yet anonymous transaction tokens, so that it can use the token to generate evidences of resource sharing with other nodes. We study offline fair sharing of resources in P2P systems, in which fraudulent activities can be detected based on the undeniable evidences generated in the transactions. These evidences can be used for unveiling the identity of a participant attempting to forge the evidences in transactions.