Research on P2P Repeated Game Trust Model Based on Unknown Node Type

With the rapid development of the network, P2P technology is widely used in the Internet, P2P application is facing the trust threat of the network. This paper first describes P2P trust problem, then proposes a P2P game trust model based on an unknown node type, and describes the modeling conditions and modeling process in detail. Use the simulation tool Gambit to verify the feasibility of the proposed model, the established P2P trust game model can induce the nodes in the network consciously to joined in the P2P network, which can reduce the possibility of the malicious attacking behavior that nodes take, greatly ensure that the interests of users in P2P network are not infringed, and improve the overall performance of the P2P network quite well.