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Supporting dynamically changing authorizations in pervasive communication systems

Lee, AJ and Boyer, JP and Drexelius, C and Naldurg, P and Hill, RL and Campbell, RH (2005) Supporting dynamically changing authorizations in pervasive communication systems. In: UNSPECIFIED UNSPECIFIED, 134 - 150. ISBN UNSPECIFIED

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Abstract

In pervasive computing environments, changes in context may trigger changes in an individual's access permissions. We contend that existing access control frameworks do not provide the fine-grained revocation needed to enforce these changing authorizations. In this paper, we present an authorization framework, in the context of the Gaia OS for active spaces, which integrates context with authorization and provides fine-grained control over the enforcement of dynamically changing permissions using cryptographic mechanisms. Our design, implemented in middleware, addresses the limitations of traditional authorization frameworks and the specific access control needs of pervasive computing environments. As part of our proposed framework, we define cryptographic protocols that enforce access to the system's communication channels and provide secure delivery of messages. We also provide a proof of correctness of key agreement and freshness using the standard BAN deduction system. © Springer-Verlag Berlin Heidelberg 2005.


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Details

Item Type: Book Section
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Lee, AJadamlee@pitt.eduADAMLEE
Boyer, JP
Drexelius, C
Naldurg, P
Hill, RL
Campbell, RH
Date: 19 September 2005
Date Type: Publication
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Journal or Publication Title: Lecture Notes in Computer Science
Volume: 3450
Page Range: 134 - 150
Event Type: Conference
Institution: University of Pittsburgh
Schools and Programs: Dietrich School of Arts and Sciences > Computer Science
Refereed: Yes
ISSN: 0302-9743
Date Deposited: 05 Dec 2012 20:20
Last Modified: 02 Feb 2019 16:56
URI: http://d-scholarship.pitt.edu/id/eprint/16519

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