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The CloudGrid approach: Security analysis and performance evaluation
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DOI：10.1016/j.future.2011.08.008.png)
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Both cloud and grid are computing paradigms that manage large sets of distributed resources, and the scientific community would benefit from their convergence. This paper proposes a novel computing model, cloudgrid, able to achieve full cloud and grid integration. After presenting its three-layer architecture, the security issues involved are analyzed, proposing a solution based on fine-grained access control mechanisms and identity federation that allows cooperation and interoperability among untrusted cloud resources. The overhead introduced by the multiple-layer architecture and by the security system are measured by extensive testing on a prototype implementation, and a trade-off analysis between security and performance is presented. (C) 2011 Elsevier B.V. All rights reserved.
Keyword:
Cloud computing
Grid
Security
Access control
Identity federation
Performance
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