P. V. Rajkumar

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—This paper considers the safety problem for the pre-authorization sub-model of the well-known UCON ABC usage control model, that is, Pre UCON A. It is shown that Pre UCON A with finite attribute domains has decidable safety even if arbitrary object creation is allowed. This result eliminates the previously known restrictions for obtaining safety(More)
Administrative rights are more powerful permissions and checking accountability of execution of admin rights is an important security measure. Most of the administrative RBAC models distribute rights to multiple administrators. Though such decentralized security management has difficulties in checking admin accountability, it is more efficient compared to(More)
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