Événements

10 résultats

• • Séminaire

  • SemSecuElec

  Sécurité physique du mécanisme d'encapsulation de clé Classic McEliece

  • 20 mars 2026 (10:00 - 11:00)

  • Inria Center of the University of Rennes - Espace de conférences

  Orateur : Brice Colombier - Laboratoire Hubert Curien, Université Jean Monnet, Saint-Étienne

  Le mécanisme d'encapsulation de clé Classic McEliece faisait partie des candidats toujours en lice au dernier tour du processus de standardisation de la cryptographie post-quantique initié par le NIST en 2016. Fondé sur les codes correcteurs d'erreurs, en particulier autour du cryptosystème de Niederreiter, sa sécurité n'a pas été fondamentalement remise en cause. Néanmoins, un aspect important du[…]

  • SemSecuElec

  • Implementation of cryptographic algorithm

• • Séminaire

  • SemSecuElec

  Double Strike: Breaking Approximation-Based Side-Channel Countermeasures for DNNs

  • 20 mars 2026 (11:00 - 12:00)

  • Inria Center of the University of Rennes - Espace de conférences

  Orateur : Lorenzo CASALINO - CentraleSupélec

  Deep neural networks (DNNs) undergo lengthy and expensive training procedures whose outcome - the DNN weights - represents a significant intellectual property asset to protect. Side-channel analysis (SCA) has recently appeared as an effective approach to recover this confidential asset of DNN implementations. Ding et al. (HOST’25) introduced MACPRUNING, a novel SCA countermeasure based on pruning,[…]

  • SemSecuElec

  • Side-channel

• • Séminaire

  • Cryptographie

  Lightweight (AND, XOR) Implementations of Large-Degree S-boxes

  • 20 mars 2026 (13:45 - 14:45)

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

  Orateur : Marie Bolzer - LORIA

  The problem of finding a minimal circuit to implement a given function is one of the oldest in electronics. In cryptography, the focus is on small functions, especially on S-boxes which are classically the only non-linear functions in iterated block ciphers. In this work, we propose new ad-hoc automatic tools to look for lightweight implementations of non-linear functions on up to 5 variables for[…]

  • Cryptography

  • Symmetrical primitive

  • Implementation of cryptographic algorithm

• • Séminaire

  • Cryptographie

  Algorithms for post-quantum commutative group actions

  • 27 mars 2026 (13:45 - 14:45)

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

  Orateur : Marc Houben - Inria Bordeaux

  At the historical foundation of isogeny-based cryptography lies a scheme known as CRS; a key exchange protocol based on class group actions on elliptic curves. Along with more efficient variants, such as CSIDH, this framework has emerged as a powerful building block for the construction of advanced post-quantum cryptographic primitives. Unfortunately, all protocols in this line of work are[…]

• • Séminaire

  • Cryptographie

  Journées C2: pas de séminaire

  • 03 avril 2026 (13:45 - 14:45)

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

• • Séminaire

  • Cryptographie

  Endomorphisms via Splittings

  • 10 avril 2026 (13:45 - 14:45)

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

  Orateur : Min-Yi Shen - No Affiliation

  One of the fundamental hardness assumptions underlying isogeny-based cryptography is the problem of finding a non-trivial endomorphism of a given supersingular elliptic curve. In this talk, we show that the problem is related to the problem of finding a splitting of a principally polarised superspecial abelian surface. In particular, we provide formal security reductions and a proof-of-concept[…]

  • Cryptography