An attribute-based access matrix model

Abstract

In traditional access control models like MAC, DAC, and RBAC, authorization decisions are determined according to identities of subjects and objects, which are authenticated by a system completely. Modern access control practices, such as DRM, trust management, and usage control, require flexible authorization policies. In such systems, a subject may be… (More)
DOI: 10.1145/1066677.1066760

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