A trust rating classification model in P2P resource discovery

This paper begins with an analysis of the defects of low efficiency and weak security of P2P network in the resource discovery, followed by the design of a trust rating classification model of vertically hierarchical structure and horizontal sub-domain. On the basis of the model that the all the nodes are divided into different layers vertically and different sub-domains horizontally, a classification algorithm of resource creditability is presented. The simulation experiment shows that this algorithm improves the efficiency and precision and enhances the security in P2P resource discovery.