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721 results

    • Seminar

    • Cryptography

    Cyclotomic Cosets: Hidden Subgroup and Quantum Sieving Algorithm for Prime-Power Moduli

    • November 06, 2026 (13:45 - 14:45)

    • salle markov - G105 à l'IRISA - Si vous êtes extérieur.e à l'IRISA, inscrivez-vous sur ce formulaire: https://evento.renater.fr/survey/seminaire-du-6-11-bil6wt46 . Présentez-vous à l'accueil du bâtiment muni.e d'une pièce d'identité.

    Speaker : Mathias Boucher - Université de Rennes

    The Dihedral Coset Problem (DCP), also known as the hidden shift problem, plays a fundamental role in post-quantum public-key cryptography, since the Learning-With-Error problem reduces to DCP. The “Simon meets Kuperberg” quantum algorithm by Bonnetain and Naya-Plasencia solves the DCP in quasi-polynomial time when the modulus is a power of two. We provide a generalization of this algorithm for[…]

    • Seminar

    • Cryptography

    Adelic reduction of module lattices

    • November 13, 2026 (13:45 - 14:45)

    • IRMAR - Université de Rennes - Campus Beaulieu Bat. 22, RDC, Rennes - Amphi Lebesgue

    Speaker : Henry Bambury - DGA-MI et Inria Rennes

    We give a strict generalisation of the LLL algorithm over number fields, based on the reduction theory of  $GL(n)$ over the adele ring of a number field. Our algorithm is free of heuristics, with rigorous bounds on output quality and complexity.   -- based on joint work with Seungki Kim, Changmin Lee and Phong Nguyen --

    • Cryptography

    • Seminar

    • SemSecuElec

    Compositional Semantics for Detection and Defense of Speculative Leaks

    • February 12, 2027 (11:00 - 12:00)

    • IETR - University of Rennes - Campus de BEAULIEU - Bâtiment 11D, salle numéro 18

    Speaker : Xaver Fabian - CISPA Helmholtz Center for Information Security

    Speculative execution improves CPU performance but introduces vulnerabilities, known as Spectre attacks, which exploit microarchitectural side effects to leak sensitive data. Modern processors employ multiple interacting speculation mechanisms, yet existing approaches predominantly analyze them in isolation, which limits both the automated detection of complex leaks and the formal verification of[…]

    • SemSecuElec

    • Side-channel

    • Micro-architectural vulnerabilities

    • Seminar

    • Cryptography

    Post-quantum day of the cryptography seminar

    • November 20, 2026 (09:30 - 15:15)

    • Amphithéâtre E - Bâtiment 02A, Campus de Beaulieu - A map of the Beaulieu campus can be viewed at: https://www.univ-rennes.fr/en/beaulieu-campus-map (the building is south of the campus)

    A scientific day devoted to post-quantum cryptography, held in the wake of the European Cyber Week, with talks more technical than those presented at the ECW. The talks will take place at Amphi E in building 02A. To register for lunch, please do so before oct 30th using this link. 

    • Seminar

    • Cryptography

    European Cyber Week: atelier cryptographie post-quantique

    • From November 18, 2026 to November 19, 2026 (09:00 - 18:00)

    • Couvent des jacobins, Rennes

    Dans la continuité des éditions 2021, 2022 et 2024, la DGA — en partenariat avec CREACH LABS et avec le soutien de l'ANSSI, de l'IRISA, de l'IRMAR et du Pôle d'Excellence Cyber — organise la 4e édition de l'atelier consacré à la cryptographie post-quantique dans le cadre de l'European Cyber Week 2026. Attention, il faut s'inscrire (gratuitement) au préalable — s'inscrire à la conférence Les[…]

    • Seminar

    • Databases

    • Machine learning

    • Economics

    • Law

    • Strategy

    • Information flow control

    Title to be confirmed

    • January 08, 2027 (09:00 - 10:00)

    • Inria Center of the University of Rennes

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