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Habilitation à diriger des recherches

Preserving Individual Privacy with Personal Data Management Systems

Iulian Sandu Popa 1, 2
1 PETRUS - Personal Trusted cloud
Inria Saclay - Ile de France, DAVID - Données et algorithmes pour une ville intelligente et durable - DAVID
Abstract : Riding the wave of smart disclosure initiatives and new privacy-protection regulations, the Personal Cloud paradigm is emerging through a myriad of solutions offered to users to let them gather and manage their whole digital life. On the bright side, this opens the way to novel value-added services when crossing multiple sources of data of a given person or crossing the data of multiple people. Yet this paradigm shift towards user empowerment raises fundamental questions with regards to the appropriateness of the functionalities and the data management and protection techniques which are offered by existing solutions to laymen users. Our work addresses these questions on three levels. First, we review, compare and analyze personal cloud alternatives in terms of the functionalities they provide and the threat models they target. From this analysis, we derive a general set of functionality and security requirements that any Personal Data Management System (PDMS) should consider. We then identify the challenges of implementing such a PDMS and propose a preliminary design for an extensive and secure PDMS reference architecture satisfying the considered requirements. Second, we focus on personal computations for a specific hardware PDMS instance (i.e., secure token with mass storage of NAND Flash). In this context, we propose a scalable embedded full-text search engine to index large document collections and manage tag-based access control policies. Third, we address the problem of collective computations in a fully-distributed architecture of PDMSs. We discuss the system and security requirements and propose protocols to enable distributed query processing with strong security guarantees against an attacker mastering many colluding corrupted nodes.
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Habilitation à diriger des recherches
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Submitted on : Tuesday, January 18, 2022 - 11:33:43 AM
Last modification on : Thursday, February 3, 2022 - 11:15:42 AM


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  • HAL Id : tel-03531619, version 1


Iulian Sandu Popa. Preserving Individual Privacy with Personal Data Management Systems. Computer science. Université de Versailles Saint-Quentin-en-Yvelines; Université Paris-Saclay, 2021. ⟨tel-03531619⟩



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