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Practical Fully-Decentralized Secure Aggregation for Personal Data Management Systems

Julien Mirval 1, 2 Luc Bouganim 1, 2 Iulian Sandu Popa 2, 1 
1 PETRUS - Personal Trusted cloud
Inria Saclay - Ile de France, DAVID - Données et algorithmes pour une ville intelligente et durable - DAVID
Abstract : Personal Data Management Systems (PDMS) are flourishing, boosted by legal and technical means like smart disclosure, data portability and data altruism. A PDMS allows its owner to easily collect, store and manage data, directly generated by her devices, or resulting from her interactions with companies or administrations. PDMSs unlock innovative usages by crossing multiple data sources from one or many users, thus requiring aggregation primitives. Indeed, aggregation primitives are essential to compute statistics on user data, but are also a fundamental building block for machine learning algorithms. This paper proposes a protocol allowing for secure aggregation in a massively distributed PDMS environment, which adapts to selective participation and PDMSs characteristics, and is reliable with respect to failures, with no compromise on accuracy. Preliminary experiments show the effectiveness of our protocol which can adapt to several contexts with varying PDMSs characteristics in terms of communication speed or CPU resources and can adjust the aggregation strategy to the estimated selective participation.
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https://hal.archives-ouvertes.fr/hal-03329878
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Submitted on : Friday, October 8, 2021 - 2:19:01 PM
Last modification on : Friday, February 4, 2022 - 3:20:18 AM
Long-term archiving on: : Sunday, January 9, 2022 - 7:47:11 PM

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Julien Mirval, Luc Bouganim, Iulian Sandu Popa. Practical Fully-Decentralized Secure Aggregation for Personal Data Management Systems. 33rd International Conference on Scientific and Statistical Database Management, SSDBM 2021, Jul 2021, Tampla, FL, United States. pp.259-264, ⟨10.1145/3468791.3468821⟩. ⟨hal-03329878⟩

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