Trust-Based Fuzzy Access Control Model Research

Trust-based access control model uses the value of users' static trust corresponding to the static attributes to get security of access control. However, facing the large number of users in the open system, the calculation of trust not only includes the static properties but also the context information with the ever-changing environment in the system. Using the fixed value to express the trust of the user to grant permissions without considering the dynamic context information may reduce the effectively of access control. Therefore, this paper proposes to use the fuzzy theory into the trust-based access control to solve the problem of dynamic access control by constructing reasonable structure with the fuzzy membership interval of the context information, along with establishing fuzzy rules for fuzzy inference.