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X-WR-CALNAME:GREYC UMR CNRS 6072 - Groupe de Recherche en Informatique, Image, et Instrumentation de Caen
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DTSTART:20260329T010000
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DTSTART:20261025T010000
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DTSTART;TZID=Europe/Paris:20260106T104500
DTEND;TZID=Europe/Paris:20260106T114500
DTSTAMP:20260418T220323
CREATED:20251219T084449Z
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UID:12009-1767696300-1767699900@www.greyc.fr
SUMMARY:Séminaire Algorithmique : « Post-Quantum Public-Key Pseudorandom Correlation Functions for Oblivious Transfer »\, Mahshid Riahinia (ENS Paris et IRIF\, Univ. Paris Cité)
DESCRIPTION:Public-Key Pseudorandom Correlation Functions (PK-PCF) are functions that generate pseudorandom correlated strings. These correlations can then be used to speed up secure computation protocols. Recent works have made significant progress building PK-PCFs using group-based assumptions\, however\, these assumptions do not hold up against quantum attackers. Much less is known about PK-PCFs in the post-quantum regime. In this talk\, I will introduce an efficient lattice-based PK-PCF for oblivious transfer (OT) correlations. At the heart of our result lie several technical contributions that might be of independent interest. In particular\, we introduce the first efficient lattice-based constrained pseudorandom functions for low-degree polynomials\, from a new but natural “secret-power” variant of ring learning with errors (ring-LWE) assumption.
URL:https://www.greyc.fr/event/seminaire-algorithmique-post-quantum-public-key-pseudorandom-correlation-functions-for-oblivious-transfer-mahshid-riahinia-ens-paris-et-irif-univ-paris-cite/
LOCATION:Sciences 3- S3 351
CATEGORIES:Amacc,General,News,Séminaire Algo
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