Trust-based dynamic access control model for P2P network

In this paper, the trust mechanism of the peers in P2P network is analyzed, a suitable method is introduced for calculating the trust value of a peers in P2P network by considering the transaction at first hand and the recommendations of other members, a dynamic trust-based access control scheme is developed to address to the security services in P2P environments. This scheme constructs the models,of access control based on trust degree of P2P members, and dynamically manages the access permission, according to the trust values of the subject and object. The basic rules of the trust-based scheme are presented, and the strategies are given for different access services in P2P applications.