The Study on Trust Management Model Based on Probability in Distributed E-Commerce System

This paper proposes PTME, which is a probability-based trust management model for distributed e-commerce. PTME can establish trust relations between buyers and sellers in a distributed e-commerce application. By employing a recommendation framework which forms objectively reputation based on both direct observation and indirect recommendation, PTME inhibits the false accusation attack and collusion attack. Also, PTME uses a forgetting factor to expire old observations, which is of great help to defeat on-off attacks.