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The Chameleon: A Pervasive Grid Security Architecture

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3 Author(s)
Rachid Saadi ; LIRIS Lab, INSA de Lyon, France ; Jean Marc Pierson ; Lionel Brunie

The convergence between Grid and Pervasive computing environments lead to the Pervasive Grids paradigm. This new paradigm gives birth to some new security challenges related to adhoc authentication and privacy protection. In distributed systems, and especially in pervasive grid environments, the users usually face difficulties to obtain permissions to use the resources from the sites they visit. Either they have an account locally, or they can show a certificate obtained beforehand that gives them the access. Problems arise when they arrive in an unknown environment, which is likely to occur in a pervasive grid environment. Ideally, they would like to present only the needed credentials to access the resources. In this paper, we propose the Chameleon architecture based on a trust model for authentication and access control that allows nomadic users to roam from site to site and to gain access to surrounding/remote resources wrt her status in her home site and to the local policy of the site where she is standing. The Chameleon permits users to access pervasive grid resources and to implement adhoc interactions through the local grid site.

Published in:

Networking and Services, 2007. ICNS. Third International Conference on

Date of Conference:

19-25 June 2007