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Separation-of-duty (SoD) policy is widely considered to be a fundamental security principle for prevention of fraud and errors in computer security. A static SoD (SSoD) policy states that in order to have all permissions necessary to complete a sensitive task, the cooperation of at least a certain number of users is required. In this paper, we study the problem of dynamic enforcement of SSoD policies...
Separation of duty (SoD) is an important control principle in computer security. In the context of role-based access control, the static SoD (SSoD) policies can be enforced by statically mutually exclusive roles (SMER) constraints. This paper studies the problem of SSoD in multi-domains in the context of IRBAC model firstly. Then investigates a question related to multi-domains: the global SSoD (GSSoD)...
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