Improving Grid Services Security with Fine Grain Policies

Grid computing is a continuously growing research field that concerns the implementation of a large scale resource sharing among different kind of institutions over the Internet. The sharing of resources among untrusted entities poses non trivial security problems. This paper proposes an approach to improve the security of computational services in the grid environment. For each grid service, this approach defines a fine grain security policy, that details the operations that are allowed on this service. This policy determines the secure environment where the grid job is executed.