P2P Network Trust Model Based on Priority

To solve the problem of different node trust recommendation priority allocated unreasonably,this paper proposes the Peer-to-Peer(P2P) network trust model based on priority.It designs the method of computing trust value and priority algorithm.The priority algorithm of attenuation with time adopts to compute the node's trust value which reflects the actual situation of the node.Experimental results show that this model can detect abnormal behavior of nodes,thus effectively avoides abnormal nodes destruction activity.With the increasing of the proportion of simple malicious nodes,conspiracy to discredit nodes and selfish nodes in the network,the request success rate of this model is higher than PeerTrust model and EigenTrust model.