FARBAC: A fine-grained administrative RBAC model

Aiming at the deficiency of traditional Role Based Access Control model in practical application, this paper puts forward an improved RBAC administrative model on the basis of RBAC, namely FARBAC (Fine-grained Administrative Role Based Access) model, and also gives the formal description of this model. Apart from the introduction of user groups, object groups and the creation of relationship between user and user groups, object and object groups, user groups and object groups, this model gives full play to the administrative section (administrative roles and administrative permissions). By using a relatively simple mechanism to administrate itself, this model guarantees the access control for the ultimate object, which has certain feasibility and reference value.