Papers › Diffix Elm: Simple Diffix
Diffix Elm: Simple Diffix
Paul Francis, Sebastian Probst-Eide, David Wagner, Felix Bauer, Cristian Berneanu, Edon Gashi
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Historically, strong data anonymization requires substantial domain expertise and custom design for the given data set and use case. Diffix is an anonymization framework designed to make strong data anonymization available to non-experts. This paper describes Diffix Elm, a version of Diffix that is very easy to use at the expense of query features. We describe Diffix Elm, and show that it provides strong anonymity based on the General Data Protection Regulation (GDPR) criteria. This document is the third version of Diffix Elm. The second version added ceiling, round, and bucket_width functions (in addition to floor). This document adds the ability to protect multiple different kinds of protected entities (a feature not found in earlier versions of Diffix). It also adds counting distinct values for any column (rather than only the AID column).
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