Security in statistical databases for queries with small counts
ACM Transactions on Database Systems (TODS)
A model of statistical database their security
ACM Transactions on Database Systems (TODS)
Further results on the security of partitioned dynamic statistical databases
ACM Transactions on Database Systems (TODS)
Security-control methods for statistical databases: a comparative study
ACM Computing Surveys (CSUR)
Statistical analysis for comparison of the key representation database with the original database
International Journal of Business Information Systems
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This paper considers a statistical database model used by J. Kam and J. Ullman in [5] to study database security. Results for the transmitter-receiver problem studied in information theory are applied to the database model to provide a measure of the information in the query-record system. A slightly different information theoretic approach is then used to provide a more effective model for the security problem. Results are obtained which give the conditions on queries necessary to minimize the information gained by making a query. Minimizing this information function corresponds to increasing the chance of a security breach. Statistical methods can then be used to determine if a series of queries are being used which have properties significantly close to those required to endanger the security.