Distributed processing of context-aware authorization in ubiquitous computing environments

Authors:
Young-Chul Shim
Affiliations:
Department of Computer Engineering, Hongik University, Seoul, Korea
Venue:
ICCSA'06 Proceedings of the 2006 international conference on Computational Science and Its Applications - Volume Part II
Year:
2006

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Abstract

Context-awareness and security are critical issues in ubiquitous computing. In this paper we present a framework for context-aware authorization in ubiquitous computing environments. We present an architecture consisting of authorization infrastructure and context infrastructure. The context infrastructure provides context information and the authorization infrastructure makes decisions to grant access rights based on context-aware authorization policies and context information. This paper also describes how multiple nodes in distributed environments cooperate to perform evaluation and detection of context constraints and events included in authorization policies.