Trust Decision Making in Structured P2P Network

P2P trust systems are essential to against the selfish, dishonest, and malicious peer behaviors. But most previous trust strategies of P2P network have many defaults such as low accuracy, high traffic etc in trust decision. Then we proposed a structured trust P2P network based on DHT (discrete hash table), in which includes peer management and peer locations based on the DHT circle, another, a top-n trust accumulating strategy based on developed and discrete particle swarm optimization (PSO) is proposed too. And effectiveness and practicality of the proposed trust decision have been showed in simulation experiments at the end.