A Commodity´s Reputation-Based Trust Model of P2P E-Commerce Systems

In peer-to-peer (P2P) e-commerce systems, the trust mechanisms already proposed always replaced commodity´s reputation with peer´s reputation, so some peers often try to keep a relatively high peer´s trust value while making their profit of doing some dishonest transactions. So, presented CRBT model (commodity´s reputation-based trust model)-a novel trust mechanism. By introducing commodity´s short-term reputation, commodity´s accumulated reputation, peer´s short-term reputation, peer´s accumulated reputation, peer´s swinging reputation and feedback credibility, distinguished a peer´s reputation and every commodity´s reputation. Finally, the results of simulation and analysis shows that the CRBT model can be effectively applied to the P2P e-commerce systems.