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Chiffrement homomorphe appliqué au retrait d'information privé

Joris Barrier 1
1 LAAS-TSF - Équipe Tolérance aux fautes et Sûreté de Fonctionnement informatique
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : Private information retrieval, named PIR, is a set of protocols that is a part of privacy enhancement technologies.Its major feature is to hide the index of a record that a user retrieved from the host.Without neglecting the scientific contributions of its authors, the usability of this protocol seems hard since that, for a user, it seems more and more efficient to receive all the records.Thus far, PIR can be achieved using mutually distrustful databases replicated databases, trusted hardware, or cryptographic systems.We focus on computational private information retrieval, and specifically on thus based on cryptographic systems.This decision is contingent to the spread of cryptographic systems based on lattices who provide specific properties.To demonstrate it usability, we offer an efficient and easy-to-use private Information retrieval based on homomorphic encryption.
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Submitted on : Monday, February 12, 2018 - 4:47:12 PM
Last modification on : Thursday, June 10, 2021 - 3:01:26 AM
Long-term archiving on: : Sunday, May 13, 2018 - 12:12:02 PM


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  • HAL Id : tel-01682332, version 2


Joris Barrier. Chiffrement homomorphe appliqué au retrait d'information privé. Cryptographie et sécurité [cs.CR]. INSA de Toulouse, 2016. Français. ⟨NNT : 2016ISAT0041⟩. ⟨tel-01682332v2⟩



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