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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Combining Consistency and Confidentiality Requirements in First-Order Databases
verfasst von : Joachim Biskup, Lena Wiese
Erschienen in: Information Security
Verlag: Springer Berlin Heidelberg
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In a logical setting, consistency of a database instance with constraints is a fundamental requirement. We show how satisfaction of a set of constraints guarantees confidentiality of some information declared secret by a security policy – albeit at the cost of some modified database entries. We identify a very general class of constraints for which this problem is effectively and in many cases efficiently solvable by means of an automatic procedure. A distance minimization ensures maximal availability of correct database entries.