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A semantic framework of the multilevel secure relational model

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2 Author(s)
Xiaolei Qian ; Comput. Sci. Lab., SRI Int., Menlo Park, CA, USA ; Lunt, T.F.

A multilevel relational database represents information in a multilevel state of the world, which is the knowledge of the truth value of a statement with respect to a level in a security lattice. The authors develop a semantic framework of the multilevel secure relational model with tuple-level labelling, which formalizes the notion of validity in multilevel relational databases. They also identify the multilevel security properties that precisely characterize the validity of multilevel relational databases, which can be maintained efficiently. Finally, they give an update semantics of the multilevel secure relational model that preserves both integrity and secrecy

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Knowledge and Data Engineering, IEEE Transactions on  (Volume:9 ,  Issue: 2 )