Chadwick, D. and Zhao, G.S. and Otenko, S. and Laborde, R. and Su, L.Y. and Nguyen, T.A. (2008) PERMIS: a modular authorization infrastructure. In: 5th UK e-Science All Hands Meeting (AHM 2006), September 8th - 21st 2006, Nottingham, England.
Authorization infrastructures manage privileges and render access control decisions, allowing applications to adjust their behavior according to the privileges allocated to users. This paper describes the PERMIS role-based authorization infrastructure along with its conceptual authorization, access control, and trust models. PERMIS has the novel concept of a credential validation service, which verifies a user's credentials prior to access control decision-making and enables the distributed management of credentials. PERMIS also supports delegation of authority; thus, credentials can be delegated between users, further decentralizing credential management. Finally, PERMIS supports history-based decision-making, which can be used to enforce such aspects as separation of duties and cumulative use of resources. Details of the design and the implementation of PERMIS are presented along with details of its integration with Globus Toolkit, Shibboleth, and GridShib. A comparison of PERMIS with other authorization and access control implementations is given, along with suggestions where future research and development are still needed.
|Item Type:||Conference or workshop item (Paper)|
|Uncontrolled keywords:||PDP authorization infrastructure access control decisions Grid security|
|Subjects:||Q Science > QA Mathematics (inc Computing science) > QA 75 Electronic computers. Computer science|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Computing > Security Group|
|Depositing User:||Suzanne Duffy|
|Date Deposited:||04 Feb 2009 11:55|
|Last Modified:||06 Sep 2011 01:41|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/14877 (The current URI for this page, for reference purposes)|
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