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Issue No. 11 - November (2005 vol. 17)
ISSN: 1041-4347
pp: 1557-1577
James B.D. Joshi , IEEE Computer Society
Multidomain application environments where distributed multiple organizations interoperate with each other are becoming a reality as witnessed by emerging Internet-based enterprise applications. Composition of a global coherent security policy that governs information and resource accesses in such environments is a challenging problem. In this paper, we propose a policy integration framework for merging heterogeneous Role-Based Access Control (RBAC) policies of multiple domains into a global access control policy. A key challenge in composition of this policy is the resolution of conflicts that may arise among the RBAC policies of individual domains. We propose an integer programming (IP)-based approach for optimal resolution of such conflicts. The optimality criterion is to maximize interdomain role accesses without exceeding the autonomy losses beyond the acceptable limit.
Index Terms- Secure interoperation, policy integration, Role-Based Access Control (RBAC), multidomain.

B. Shafiq, J. B. Joshi, A. Ghafoor and E. Bertino, "Secure Interoperation in a Multidomain Environment Employing RBAC Policies," in IEEE Transactions on Knowledge & Data Engineering, vol. 17, no. , pp. 1557-1577, 2005.
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