Certificate-based authorization policy in a PKI environment
ACM Transactions on Information and System Security (TISSEC)
The UCONABC usage control model
ACM Transactions on Information and System Security (TISSEC)
Towards Continuous Usage Control on Grid Computational Services
ICAS-ICNS '05 Proceedings of the Joint International Conference on Autonomic and Autonomous Systems and International Conference on Networking and Services
A taxonomy of Data Grids for distributed data sharing, management, and processing
ACM Computing Surveys (CSUR)
Toward a Usage-Based Security Framework for Collaborative Computing Systems
ACM Transactions on Information and System Security (TISSEC)
A distributed authorization system with mobile usage control policies
EUROCAST'11 Proceedings of the 13th international conference on Computer Aided Systems Theory - Volume Part I
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The dynamic environment of Business Coalition (BC) requires a flexible access control approach to deal with user management and policy writing. However, the traditional approach applied to BC assigns to access control a burden, mainly to the service provider, thus requiring ad hoc schemes to mitigate the lack of controls developed to BC needs. We present a brokered access control architecture, based on UCONABC, to obtain an integrated usage control management for BC. The broker intermediates contract establishment between service provider and consumer, and derives from it the policies to regulate the usage at service-level. The consumer defines user-level policies to control the usage of the contracted services. We developed a web services based prototype to evaluate the feasibility of our proposal. The proposed architecture enables distribution of duties and integration of usage control management in a loosely coupled fashion, providing the flexibility desired in BC environments.