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Database Security

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4 Author(s)
G. I. Davida ; Department of Electrical Engineering and Computer Science, University of Wisconsin ; D. J. Linton ; C. R. Szelag ; D. L. Wells

Databases may be compromised by asking a set of queries which return only statistical information and making inferences about a specific entry from the results of the set of queries. We present methods of constructing the set of queries to compromise a database where all the queries in the set return the maximum of a set of k elements, or all queries return the mean of a set of k elements. In the case of the mean query, all elements involved will be compromised. We also consider bounds on the number of queries required to compromise the database.

Published in:

IEEE Transactions on Software Engineering  (Volume:SE-4 ,  Issue: 6 )