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Erschienen in:
2008 | OriginalPaper | Buchkapitel
A Survey of Query Auditing Techniques for Data Privacy
verfasst von : Shubha U. Nabar, Krishnaram Kenthapadi, Nina Mishra, Rajeev Motwani
Erschienen in: Privacy-Preserving Data Mining
Verlag: Springer US
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This chapter is a survey of query auditing techniques for detecting and preventing disclosures in a database containing private data. Informally, auditing is the process of examining past actions to check whether they were in conformance with official policies. In the context of database systems with specific data disclosure policies, auditing is the process of examining queries that were answered in the past to determine whether answers to these queries could have been used by an individual to ascertain confidential information forbidden by the disclosure policies. Techniques used for
detecting
disclosures could potentially also be used or extended to
prevent
disclosures, and so in addition to the retroactive auditing mentioned above, researchers have also studied an online variant of the auditing problem wherein the task of an online auditor is to
deny
queries that could potentially cause a breach of privacy.