Abstract
An earlier paper by Jajodia and Kogan [5] introduced an approach for building multilevel secure object-oriented database systems based on a secure message filtering mechanism. Under this approach each object has a unique security level and, therefore, multilevel objects are not supported. In the present paper, we discuss an approach, based on composite objects, that allows multilevel entities to be represented in terms of single level objects. The main qualifying aspect of our approach is that the object interfaces can be provided to users as if multilevel objects were directly supported.
The work reported in this paper was carried out by E.Bertino when visiting the Department of Information and Software Systems Engineering, George Mason University, during summer 1992.
The work of S. Jajodia was partially supported by a grant from the National Science Foundation under IRI-9303416.
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Bertino, E., Jajodia, S. (1993). Modeling multilevel entities using single level objects. In: Ceri, S., Tanaka, K., Tsur, S. (eds) Deductive and Object-Oriented Databases. DOOD 1993. Lecture Notes in Computer Science, vol 760. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-57530-8_27
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DOI: https://doi.org/10.1007/3-540-57530-8_27
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