Role-Based Access Control Models
Computer
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Proceedings of the 8th annual international conference on Mobile computing and networking
Role-Based Access Control With X.509 Attribute Certificates
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Proceedings of the eighth ACM symposium on Access control models and technologies
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Access Control Systems: Security, Identity Management and Trust Models
Access Control Systems: Security, Identity Management and Trust Models
A usage-based authorization framework for collaborative computing systems
Proceedings of the eleventh ACM symposium on Access control models and technologies
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ACM Transactions on Information and System Security (TISSEC)
Authorisation in Grid computing
Information Security Tech. Report
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Dynamic inter-domain collaborations and resource sharing comprise two key characteristics of mobile Grid systems. However, interdomain collaborations have proven to be vulnerable to conflicts that can lead to privilege escalation. These conflicts are detectable in interoperation policies, and occur due to cross-domain role relationships. In addition, resource sharing requires to be enhanced with resource usage management in virtual organizations where mobile nodes act as resource providers. In this case the enforcement of resource usage policies and quality of service policies are required to be supported due to the limited capabilities of the devices. Yet, the ANSI INCITS 359-2004 standard RBAC model provides neither any policy conflict resolution mechanism among domains, nor any resource usage management functionality. In this paper, we propose the domRBAC model for access control in mobile Grid systems at a low administrative overhead. The domRBAC is defined as an extension of the standardized RBAC by incorporating additional functionality to cope with requirements posed by the aforementioned systems. As a result, domRBAC facilitates collaborations among domains under secure inter-operation, and provides support for resource usage management in the context of multi-domain computing environments, where mobile nodes operate as first-class entities.