A role-based access control model and reference implementation within a corporate intranet
ACM Transactions on Information and System Security (TISSEC) - Special issue on role-based access control
Formal Models for Computer Security
ACM Computing Surveys (CSUR)
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SACMAT '01 Proceedings of the sixth ACM symposium on Access control models and technologies
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ACM Transactions on Information and System Security (TISSEC)
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EW 9 Proceedings of the 9th workshop on ACM SIGOPS European workshop: beyond the PC: new challenges for the operating system
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ACM SIGOPS Operating Systems Review
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IEEE Internet Computing
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ACSAC '02 Proceedings of the 18th Annual Computer Security Applications Conference
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ICDE '99 Proceedings of the 15th International Conference on Data Engineering
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ICDCS '01 Proceedings of the The 21st International Conference on Distributed Computing Systems
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PERCOMW '04 Proceedings of the Second IEEE Annual Conference on Pervasive Computing and Communications Workshops
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IEEE Transactions on Knowledge and Data Engineering
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Distributed and Parallel Databases
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ASIACCS '06 Proceedings of the 2006 ACM Symposium on Information, computer and communications security
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Proceedings of the 2007 ACM workshop on Secure web services
Human-Computer Interaction
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IEEE Transactions on Circuits and Systems for Video Technology
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Recently ubiquitous technology has invaded almost every aspect of the modern life. Several application domains, have integrated ubiquitous technology to make the management of resources a dynamic task. However, the need for adequate and enforced authentication and access control models to provide safe access to sensitive information remains a critical matter to address in such environments. Many security models were proposed in the literature thus few were able to provide adaptive access decisions based on the environmental changes. In this paper, we propose an approach based on our previous work [B.A. Bouna, R. Chbeir, S. Marrara, A multimedia access control language for virtual and ambient intelligence environments, In Secure Web Services (2007) 111-120] to enforce current role based access control models [M.J. Moyer, M. Ahama, Generalized role-based access control, in: Proceedings of International Conference on Distributed Computing Systems (ICDCS), Phoenix, Arizona, USA, 2001, pp. 391-398] using multimedia objects in a dynamic environment. In essence, multimedia objects tend to be complex, memory and time consuming nevertheless they provide interesting information about users and their context (user surrounding, his moves and gesture, people nearby, etc.). The idea behind our approach is to attribute to roles and permissions, multimedia signatures in which we integrate conditions based on users' context information described using multimedia objects in order to limit role activation and the abuse of permissions in a given environment. We also describe our architecture which extends the known XACML [XACML, XACML Profile for Role Based Access Control (RBAC), , 2008] terminology to incorporate multimedia signatures. We provide an overview of a possible implementation of the model to illustrate how it could be valuable once integrated in an intelligent environment.