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Research teams collaborating across institutional, geographical and cultural boundaries are increasingly common. Funding agencies including the National Science Foundation (NSF) and National Institutes of Health (NIH) strongly encourage virtual organization building and collaboration across institutions and disciplines. A set of software tools that enables scientists to efficiently share information...
With the increasing complexity of dynamic and collaborative computing environments in Grid, access control has become a critical factor. Several approaches have been proposed in grid environment for scalable and efficient authorizations that are either VO-centric or Resource-centric. Reviewing different kinds of proposed authorization systems, we find out that VO-level and Resource-level authorization...
With the increasing complexity of dynamic and collaborative computing environments in grid, security management has become a critical factor. Although several approaches have been proposed, fully decentralized and efficient authorization management is still a challenging problem. We propose an access control scheme based on a group-based RBAC model for grid computing environments. By separating the...
The increasing complexity and dynamics of grid environments have posed great challenges for secure and privacy-preserving collaboration in a virtual organization. In this paper, we propose PEACE-VO, a secure policy-enabled collaboration framework for virtual organizations. PEACE-VO employs role mapping to define trust relationships across autonomous domains. Nevertheless, a critical issue emerges...
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