Paper 2015/1159 Original: eprint.iacr.org/2015/1159 ↗

Students and Taxes: a Privacy-Preserving Social Study Using Secure Computation

Dan Bogdanov
Liina Kamm
Baldur Kubo
Reimo Rebane
Ville Sokk
Riivo Talviste
Abstract

We describe the use of secure multi-party computation for performing a large-scale privacy-preserving statistical study on real government data. In 2015, statisticians from the Estonian Center of Applied Research (CentAR) conducted a big data study to look for correlations between working during university studies and failing to graduate in time. The study was conducted by linking the database of individual tax payments from the Estonian Tax and Customs Board and the database of higher education events from the Ministry of Education and Research. Data collection, preparation and analysis were conducted using the Sharemind secure multi-party computation system that provided end-to-end cryptographic protection to the analysis. Using ten million tax records and half a million education records in the analysis, this is the largest cryptographically private statistical study ever conducted on real data.

Metadata
Available format(s)
PDF
Category
Applications
Publication info
Preprint.
History
2016-02-27: last updated
2015-12-02: published
Short URL
https://ia.cr/2015/1159
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2015/1159,
      author = {Dan Bogdanov and Liina Kamm and Baldur Kubo and Reimo Rebane and Ville Sokk and Riivo Talviste},
      title = {Students and Taxes: a Privacy-Preserving Social Study Using Secure Computation},
      howpublished = {Cryptology {ePrint} Archive, Paper 2015/1159},
      year = {2015},
      url = {https://eprint.iacr.org/2015/1159}
}
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