Fermilab Computing Division

CS Document 3157-v2

VOMRS/VOMS-Admin Convergence

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Tanya Levshina
Updated by:
Tanya Levshina
Document Created:
20 Mar 2009, 14:13
Contents Revised:
19 May 2009, 10:32
Metadata Revised:
19 May 2009, 10:32
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20 Mar 2009, 14:19
The Grid community uses two well-established registration services, which allow users to be authenticated under the auspices of Virtual Organizations (VO).

The Virtual Organization Membership Service (VOMS), developed by the Enabling Grid for E-sciencE (EGEE) provides storage of user's Distinguished Names, Certificate Authority, and information on membership to a VO and to its internal organizational structure (VO groups and roles). Upon user's request, VOMS generates an extended proxy, which includes membership to VO groups and role as
extended attributes.

The Virtual Organization Management Registration Service (VOMRS), developed at Fermilab, provides a comprehensive set of services that facilitates management of VO membership and privileges. It implements a registration workflow that requires VO usage policy acceptance and
membership approval by designated VO administrators. VOMRS allows for management of multiple grid certificates, handling users' request for VO group and role assignments, and VO membership status. VOMRS is capable of interfacing to local systems with personnel information (e.g. the CERN Human Resource Database), and pulling relevant member information from them. VOMRS synchronizes the relevant subset of membership information with VOMS.

The recent development of new features in VOMS raises the possibility of rationalizing the support and converging on a single solution by continuing and extending existing collaborations between EGGE and OSG.
Such strategy is supported by WLCG, OSG, US CMS, US Atlas, and other stakeholders around the world. In this paper, we will analyze features in use by major experiments and the use cases for membership registration addressed by the mature single solution.

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CHEP 2009 held from 21 Mar 2009 to 27 Mar 2009 in Prague, Czech Republic
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