Cited by 59Privacy-Preserving Technologies in DataCryptography and Data SecurityCloud Data Security Solutions

Drynx: Decentralized, Secure, Verifiable System for Statistical Queries and Machine Learning on Distributed Datasets

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Froelicher, David, Troncoso-Pastoriza, Juan Ramon, Sousa, Joao Sa, Hubaux, Jean-Pierre·2020·IEEE Transactions on Information Forensics and Security

Abstract

Data sharing has become of primary importance in many domains such as big-data analytics, economics and medical research, but remains difficult to achieve when the data are sensitive. In fact, sharing personal information requires individuals’ unconditional consent or is often simply forbidden for privacy and security reasons. In this paper, we propose Drynx, a decentralized system for privacy-conscious statistical analysis on distributed datasets. Drynx relies on a set of computing nodes to enable the computation of statistics such as standard deviation or extrema, and the training and evaluation of machine-learning models on sensitive and distributed data. To ensure data confidentiality and the privacy of the data providers, Drynx combines interactive protocols, homomorphic encryption, zero-knowledge proofs of correctness, and differential privacy. It enables an efficient and decentralized verification of the input data and of all the system’s computations thus provides auditability in a strong adversarial model in which no entity has to be individually trusted. Drynx is highly modular, dynamic and parallelizable. Our evaluation shows that it enables the training of a logistic regression model on a dataset (12 features and 600,000 records) distributed among 12 data providers in less than 2 seconds. The computations are distributed among 6 computing nodes, and Drynx enables the verification of the query execution’s correctness in less than 22 seconds.

Integrity signals

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Crossref · 10.1109/tifs.2020.2976612

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  • Many state-of-the-art byzantine-robust aggregations rely on assumptions that are either unrealistic or do not hold in FL environments.

    “Many of the state-of-the-art byzantine-robust aggregations rely on assumptions that are either unrealistic or do not hold in FL environments [18].”

    From Vulnerabilities in federated learning (2021) · cites this paper as [18]

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Authors
Froelicher, D., Troncoso-Pastoriza, J. R., Sousa, J. S., & Hubaux, J.-P.
Affiliations
École Polytechnique Fédérale de Lausanne (CH)
Venue
IEEE Transactions on Information Forensics and Security
Published
2020
Volume
15
Pages
3035-3050
ISSN
  • 1556-6013 (ISSN-L)
  • 1556-6021
OpenAlex
W2934042028
Cited by
59
References
77
Citations by year
2026: 1 · 2025: 11 · 2024: 8 · 2023: 6 · 2022: 9 · 2021: 19 · 2020: 5
FWCI
3.83
Type
journal article
Language
en
Open access
Locations
  • IEEE Transactions on Information Forensics and Security (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
  • arXiv (Cornell University)
Funders
Strategic Focal Area Personalized Health and Related Technologies (PHRT) of the ETH Domain (2017-201)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Privacy-Preserving Technologies in Data
  • Physical Sciences › Computer Science › Artificial Intelligence › Cryptography and Data Security
  • Physical Sciences › Computer Science › Information Systems › Cloud Data Security Solutions
Keywords
privacy-preserving data sharing, decentralized computing, distributed datasets, homomorphic encryption, zero-knowledge proofs, differential privacy, interactive protocols, verifiable computation, auditability, statistical queries, data confidentiality

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