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Authorization and account management in the Open Science Grid

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8 Author(s)
Lorch, M. ; Dept. of Comput. Sci., Virginia Tech, Blacksburg, VA, USA ; Kafura, D. ; Fisk, I. ; Keahey, K.
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An attribute-based authorization infrastructure developed for the Open Science Grid is presented. The infrastructure integrates existing identity-mapping and group-membership service using concepts prototyped in the PRIMA system. Authorization scenarios for requests to compute and data resources are detailed. A new SAML obligated authorization decision statement is introduced that attaches an XACML obligation to the authorization decision. The use of obligations enables site-centralized, service-independent policy management. Authorization decisions are enforced via a Workspace Service that creates constrained execution environments configured in accordance with the obligations and other attribute-based information. Finally, an experimental PRIMA authorization service that extends and simplifies the infrastructure is described.

Published in:

Grid Computing, 2005. The 6th IEEE/ACM International Workshop on

Date of Conference:

13-14 Nov. 2005