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Extending the collaborative online visualization and steering framework for computational Grids with attribute-based authorization

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10 Author(s)
Riedel, M. ; Julich Supercomput. Centre, Forschungszentrum Julich, Julich ; Frings, W. ; Habbinga, S. ; Eickermann, T.
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Especially within grid infrastructures driven by high-performance computing (HPC), collaborative online visualization and steering (COVS) has become an important technique to dynamically steer the parameters of a parallel simulation or to just share the outcome of simulations via visualizations with geographically dispersed collaborators. In earlier work, we have presented a COVS framework reference implementation based on the UNICORE grid middleware used within DEISA. This paper lists current limitations of the COVS framework design and implementation related to missing fine-grained authorization capabilities that are required during collaborative COVS sessions. Such capabilities use end-user information about roles, project membership, or participation in a dedicated virtual organization (VO). We outline solutions and present a design and implementation of our architecture extension that uses attribute authorities such as the recently developed virtual organization membership service (VOMS) based on the security assertion markup language (SAML).

Published in:

Grid Computing, 2008 9th IEEE/ACM International Conference on

Date of Conference:

Sept. 29 2008-Oct. 1 2008

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