A Trust-Level Based Authorization Model Using Signaling Games

The dynamic authorization model based on the user´s behaviors is a trend of research development. But in fact it is difficult to describe the user´s behaviors effectively and accurately. It is usually achieved by evidences collection which may lead to the inaccurate and imperfect evaluation for the user´s behaviors. To overcome the shortage of the method, it is proposed an authorization model using signaling games based on the trust level in this paper. As we know, either resource requestors or providers will choose the behaviors and policies to maximize their interests during the process of resource access, so the authorization result will be more scientific and reasonable in the new model, which is shown by the experimental results.