Temporal and location-based RBAC model

[[abstract]]Securing access to data in temporal and location-based services and mobile applications requires the definition of temporal and location-based access-control systems. To cope with the temporal and location-based requirements, we propose a Temporal and Location-based RBAC (TLRBAC) model. In the TLRBAC model, temporal-period and spatial-location based entities are used to constrain the permissions of objects, user positions, and geographically bounded roles. Furthermore, we also present temporal and location-based relations of time and location-based SSD, time and location-based DSD constraints in the TLRBAC model. © 2009 IEEE