Abstract:

Due to the openness,anonymous and other characteristics of P2P networks,there is a considerable security risk in the communication and services between the nodes.As a solution,trust model has been extensive researched and developed in recent years.In this paper,we summarize and analyze the four types of the trust model for P2P networks:super-peer,recommendation,feedback and game theory,and give their features,advantages and disadvantages.At last we put forward the research prospect of the P2P trust model.

Key words: peertopeer(P2P) network;network security;trust model