Delegation of authority is an important process that needs to be captured by any access control model. In role-based access control models, delegation of authority involves delega...
This paper presents an approach that uses special purpose RBAC constraints to base certain access control decisions on context information. In our approach a context constraint is...
Virtual machines are widely accepted as a promising basis for building secure systems. However, while virtual machines offer effective mechanisms to create isolated environments, ...
The distributed firewall is an important new line of network defense. It provides fine-grained access control to augment the protections afforded by the traditional perimeter fire...
Separation of duties (SoD) is a key security requirement for many business and information systems. Role Based Access Controls (RBAC) is a relatively new paradigm for protecting i...
David W. Chadwick, Wensheng Xu, Sassa Otenko, Roma...