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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/15773

Title: A Context-Aware Access Control Model for Pervasive Environments
Authors: Sumayah AlRwais
Jalal AlMuhtadi
Issue Date: 2009
Publisher: IEEE 3rd International Conference on Network & System Security (NSS), pp. 425-430, October 2009, Australia.
Abstract: Pervasive environments are dynamically changing environments with enormous amounts of information available for access from anywhere. This paper presents a framework for context-aware access control using threshold cryptography (CAAC-TC) where the administration of access control is distributed between different context services. CAAC-TC encrypts information using threshold cryptography where the private key is split up between the different context conditions which must be captured or realized. The idea here is that not all specified context conditions must be captured, k captured contexts are enough. The management of access decisions is distributed among the different contexts. In CAAC-TC, multiple encryption layers can be specified where each layer is an encryption scheme of either n-out-of-n or k-out-of-n. Multiple layers simulate the use of an `AND' operator. Some of the main characteristics of CAAC-TC are: decentralization, context error tolerant (distributed trust), extensibility, flexibility and scalability.
URI: http://hdl.handle.net/123456789/15773
Appears in Collections:College of Computer and Information Sciences

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