A Trust-Based Access Control Model in P2P Networks Using Ant Colony Optimization

The paper presents a novel access control model based on the basic Role-based access control. In our access control model, a trust-based user-to-role mapping process was introduced. The trust aggregation process is based on ant colony optimization (ACO), which was used widely in present combinational optimization problem. With ACO, the trust aggregation process will be a dynamic and automatic process without a central server. We also add fine-grained trust attributes into our access control model, which can improve our trust aggregation process deeply. Through this dynamic and automatic trust aggregation process, our access control can adapt to distributed and collaborative environment such as P2P networks easily and conveniently.