New directions in access control

Access control is the process of mediating every request to resources and data maintained by a system and determining whether the request should be granted or denied. Traditionally, the access control process is based on a simple paradigm with basic functionalities (e.g., simple authorization tuples), the access control rules are under the control of a single party, and relying on user's authentication. The emerging open-based scenarios make inapplicable traditional assumptions. In this paper we illustrate recent proposals and ongoing work addressing access control. in emerging applications and new scenarios.