A scalable security architecture enabling coalition formation between autonomous domains

Coalitions between autonomous domains are often formed in real life scenarios in order to enable access permissions to shared objects on grounds of bilateral resource-sharing agreements. The dynamic nature of coalitions poses new challenges relative to security management and joint administration of resources; therefore we distinguish a need for reconciliation and extension support to single-domain oriented security models, so as to incorporate location, time and context based related parameters in their role definition schemes. In this paper, we introduce a robust and scalable solution that enables the realization of coalition formation in a multi-domain policy ruled environment