Enforcing spatial constraints for mobile RBAC systems

Proposed models for spatially-aware extensions of role-based access control (RBAC) combine the administrative and security advantages of RBAC with the dynamic nature of mobile and pervasive computing systems. However, implementing systems that enforce these models poses a number of challenges. As a solution, we propose an architecture for designing such a system. The architecture is based on an enhanced RBAC model that supports location-based access control policies by incorporating spatial constraints.