Portal de Periódicos da CAPES

From gridmap-file to VOMS: managing authorization in a Grid environment

2005; Elsevier BV; Volume: 21; Issue: 4 Linguagem: Inglês

10.1016/j.future.2004.10.006

1872-7115

Roberto Alfieri, R. Cecchini, Vincenzo Ciaschini, L dell’Agnello, Ákos Frohner, Károly Lőrentey, F. Spataro,

Peer-to-Peer Network Technologies

Grids are potentially composed of several thousands of users from different institutions sharing their computing resources (or using resources provided by third parties). Controlling access to these resources is a difficult problem, as it depends on the policies of the organizations the users belong to and of the resource owners. Moreover, a simple authorization implementation, based on a direct user registration on the resources, is not applicable to a large scale environment. In this paper, we describe the solution to this problem developed in the framework of the European DataGrid [M. Draoli, G. Mascari, R. Piccinelli, Project Presentation, DataGrid-11-NOT-0103-_1] and DataTAG [http://www.datatag.org/] projects: the Virtual Organization Membership Service (VOMS) [R. Alfieri, et al., Managing Dynamic User Communities in a Grid of Autonomous Resources, TUBT005, in: Proceedings of the CHEP 2003, 2003]. VOMS allows a fine grained control of the use of the resources both to the users' organizations and to the resource owners.