Diffix-Birch: Extending Diffix-Aspen
Cryptography and Security
2019-08-22 v2 Databases
Abstract
A longstanding open problem is that of how to get high quality statistics through direct queries to databases containing information about individuals without revealing information specific to those individuals. Diffix is a framework for anonymous database query that adds noise based on the filter conditions in the query. A previous paper described the first version, called diffix-aspen. This version, diffix-birch, extends that description to include a wide variety of common features found in SQL. It describes attacks associated with various features, and the anonymization steps used to defend against those attacks. This paper describes diffix-birch, which was used for the bounty program sponsored by Aircloak starting December 2017.
Keywords
Cite
@article{arxiv.1806.02075,
title = {Diffix-Birch: Extending Diffix-Aspen},
author = {Paul Francis and Sebastian Probst-Eide and Pawel Obrok and Cristian Berneanu and Sasa Juric and Reinhard Munz},
journal= {arXiv preprint arXiv:1806.02075},
year = {2019}
}