A P2P global trust model based on recommendation

Peer-to-peer network can be seen as truly distributed computing system. Each peer is both a client and a server in these networks. The trust between peers cannot be set up simply on the traditional trust mechanism. A reasonable trust construction approach comes from the social network analysis. Trust relations between individuals are set up upon recommendations of other individuals. In this paper, we propose a recommendation-based global trust model for peer-to-peer network, which is easy to implement. Then we introduce some security mechanism into this model to defense several attacks, such as tamper, pretend, slander and exaggerate.