Context aware and group based access control

Role based access control(RBAC) mainly depend on role given by the theme to achieve the protection of natural resources. In the control of the permissions, execution context, how the customs organize and manage were not taken into account. In order to adapt dynamic requirements of the application environment and to make the management of customs more convienent, RGBACC model was put forward. RGBACC model add "context-aware" and "user group management" to RBAC model. The context information ralated security from application environment was obtained to dynamically change the user's permission. To the customs who have the same function, RGBACC model can manage them unifiedly, at the same time, it maintain the advantagement of traditional RBAC model.