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Avaliação de Confiança Contextual em Grades Computacionais Multímodo usando Plataformas Seguras

Ricardo de Barros CostaLuiz Fernando Rust da Costa Carmo

This paper investigates the joint use of secure platform (TPM), virtualization techniques and trust evaluation techniques in a GRID, for protecting its owns resources and users' applications. Grid is formatted within different operation modes, which one presenting a different protection level in function of its predefined security mechanisms. The operation mode of each application is selected according to the contextual trust exhibited by the user at submission time. Trust calculation is based on four different factors: identification process, platform robustness, communication mode and user's reputation. Simulations results provide subsidies for correlating operation mode and trust thresholds, aiming to optimize the Grid performance.

http://www.lbd.dcc.ufmg.br/colecoes/sbseg/2007/0013.pdf

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Biblioteca Digital Brasileira de Computação - Contato: bdbcomp@lbd.dcc.ufmg.br
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