Sommaire

  • Cet exposé a été présenté le 25 octobre 2019.

Description

  • Orateur

    Christophe Petit - University of Birmingham

The security of many cryptographic protocols in use today relies on the computational hardness of mathematical problems such as integer factorization. These problems can be solved using quantum computers, and therefore most of our security infrastructures will become completely insecure once quantum computers are built. Post-quantum cryptography aims at developing security protocols that will remain secure even after quantum computers are built. The biggest security agencies in the world including GCHQ and the NSA have recommended a move towards post-quantum protocols, and the new generation of cryptographic standards will aim at post-quantum security.<br/> In this talk I will discuss isogeny-based cryptography, a particular family of protocols that are considered for post-quantum security. Isogeny-based protocols have appealing properties including the shortest key sizes among post-quantum cryptography candidates, practical constructions for key exchange and signature, and a clear mathematical elegance.<br/> lien: http://desktop.visio.renater.fr/scopia?ID=725931***2130&autojoin

Prochains exposés

  • Adelic reduction of module lattices

    • 13 novembre 2026 (13:45 - 14:45)

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

    Orateur : 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

  • European Cyber Week: atelier cryptographie post-quantique

    • Du 18 novembre 2026 au 19 novembre 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[…]
  • Post-quantum day of the cryptography seminar

    • 20 novembre 2026 (09:00 - 15:00)

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

    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.
Voir les exposés passés