Muhlbauer, Adam; Safavi-Naini, Reihaneh; Salim, Farzad; Sheppard, Nicholas P.; and Surminen, Martin J., 2008, Location constraints in digital rights management, Computer Communications, 31(6), 1173-1180.
Digital rights management allows information owners to control the use and dissemination of electronic documents via a machine-readable licence. This paper describes the design and implementation of a system for creating and enforcing licences containing location constraints that can be used to restrict access to sensitive documents to a defined area. Documents can be loaded onto a portable device and used in the approved areas, but cannot be used if the device moves to another area. Our contribution includes a taxonomy for access control in the presence of requests to perform non-instantaneous controlled actions.