Trust Model for Considering Peer Role in P2P Networks
In peer-to-peer network, Che key research issue lies in how to accurately assess the transaction behavior. Studying and analyzing the existing trust models, we find that each peer's reputation almost depends on others' trust ratings as the recommended target, but ignores the self recommendation behavior as recommending individual. Considering these faults, we propose a new dual-recommendation-based trust model DRtrust in view of dual transaction roles. According to these two roles, we design dual-reputation evaluation criterions to reflect their different transaction behaviors for each peer. After a certain number of transactions, our trust model makes those normal peers form a strongly interrelated transaction relation, which confines the transaction behavior of malicious peers effectively. Experimental results also show that our trust model can achieve better against the threats of exaggeration, collusion, disguise and single-behavior compared with other trust models.
NETL
NSTL
万方数据
维普
