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- W2134601432 abstract "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 in access control systems. We formally define the notion of an SSoD policy, and introduce the problem of dynamic safety checking problem (DSCP) which asks whether an access control state satisfies a given SSoD policy, and show that it is intractable (NP-complete) for directly enforcing SSoD policies in access control. Furthermore, we design and evaluate an improvement algorithm for solving DSCP." @default.
- W2134601432 created "2016-06-24" @default.
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- W2134601432 date "2009-01-01" @default.
- W2134601432 modified "2023-10-16" @default.
- W2134601432 title "Dynamic Enforcement of Separation-of-Duty Policies" @default.
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- W2134601432 doi "https://doi.org/10.1109/mines.2009.102" @default.
- W2134601432 hasPublicationYear "2009" @default.
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