Research on Access Control Mode of Peer-to-Peer Network Based on Trust Evaluation

摘要

The traditional access control model is not suitable for P2P network the distributed management system, and the features opening and self-organization of P2P network brings a series of security risks to it. This paper proposes an access control mode of P2P network based on trust evaluation,black which is called TEMAC. Before the transaction would be generated between the nodes, firstly, the subject node evaluates asset value, and then analyzes the probability of the risk occurring, finally, calculates the trust value of the transaction. In the model, by extending the task accesscontrol model and introducing the mechanism of trust evaluation into it, the dynamic management of the subject node to the object node is realized, so that, the goal of system security is achieved. Analysis and simulation show that the model is able to inhibit the success transaction rateof non cooperative nodes, increase the success transaction rate of the whole P2P network system, and improve the security of P2P network system.