The Reasoning Rules Based on CATL of P2P File Sharing System

P2P files sharing system is popular in network application. The trust evaluation, which is designed for restricting the malicious peers in files sharing system, is often based on reputation. We analyze the reputation system of P2P files sharing, introduce a logic language into the system and prompt some deductive rules according to Game Theory. Finally, we make use of the rules to study the behavior of the peers and it works well.