Role-Based Access Control Models
Computer
Role templates for content-based access control
RBAC '97 Proceedings of the second ACM workshop on Role-based access control
The context toolkit: aiding the development of context-enabled applications
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Proposed NIST standard for role-based access control
ACM Transactions on Information and System Security (TISSEC)
A Distributed Object Infrastructure for Interaction and Steering
Euro-Par '01 Proceedings of the 7th International Euro-Par Conference Manchester on Parallel Processing
A Flexible, Privacy-Preserving Authentication Framework for Ubiquitous Computing Environments
ICDCSW '02 Proceedings of the 22nd International Conference on Distributed Computing Systems
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As computing technology becomes more pervasive and mobile services are deployed, applications will need flexible access control mechanisms. Although lots of researches have been done on access control, these efforts focus on relatively static scenarios where access depends on identity of the subject. They do not address access control issues for pervasive applications where the access privileges of a subject not only depend on its identity but also on its current context and state. In this paper, we present the SESAME dynamic context-aware access control mechanism for pervasive applications. SESAME complements current authorization mechanisms to dynamically grant and adapt permissions to users based on their current context. The underlying dynamic role based access control (DRBAC) model extends the classic role based access control (RBAC). We also present a prototype implementation of SESAME and DRBAC with the Discover computational collaboratory and an experimental evaluation of its overheads.