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657 results

    • Seminar

    • SemSecuElec

    libecc: a flexible open-source ECC library for embedded devices

    • February 14, 2020

    • ANSSI - Salle Pétri/Turing

    Speaker : Ryad Benadjila et Arnaud Ebalard

    libecc is a software library for elliptic curves based cryptography (ECC), with an API supporting signature algorithms specified in the ISO14888-3 standard.Advanced usages of this library also include the possible implementation of elliptic curve based Diffie-Hellman protocols as well as any algorithm on top of prime fields based elliptic curves (or prime fields, or rings of integers).The[…]

    • Seminar

    • SemSecuElec

    Une approche pour l’accélération matérielle pour le chiffrement homomorphe

    • December 14, 2018

    • CEA List

    Speaker : Joël Cathebras

    Le chiffrement homomorphe est un outil cryptographique permettant la manipulation de données en aveugle. Son utilisation généralisée permettrait de proposer des solutions de calcul déporté impliquant des données confidentielles, par exemple des données génomiques pour la médecine personnalisée. Cependant, le chiffrement homomorphe doit faire face à de grandes complexités mémoires et calculatoires.[…]

    • Seminar

    • SemSecuElec

    Code-based postquantum cryptography : candidates to standardization

    • April 23, 2021

    • INRIA - Web-Conférence

    Speaker : Nicolas Sendrier

    At the third round of the NIST standardization process, three candidates remain with a security based on error correcting codes, all are key exchange mechanisms. We will explore them according to their security assumptions and properties. Among them, we find an historical scheme (Classic McEliece), as well as schemes using sparse and quasi-cyclic matrices (BIKE and HQC). We will examine pros and[…]

    • Seminar

    • SemSecuElec

    Side Channel Analysis: Instruction extraction and Information estimation

    • May 06, 2022

    • CEA-LETI; Université de Montpellier, LIRMM - Salle Pétri/Turing

    Speaker : Valence Cristiani

    Side-channel usually aims at extracting cryptographic secrets from electronic devices through their physical leakages. However, these channels can leak other sensitive information. The first part of this talk will present a study of side channel-based disassembling (SCBD) that aims to recover instructions executed by a microcontroller. The main threat represented by SCBD is that it potentially[…]

    • Seminar

    • SemSecuElec

    Do Not Trust Modern System-on-Chips - Electromagnetic fault injection against a System-on-Chip

    • May 10, 2019

    • INRIA - Salles Petri/Turing

    Speaker : Ronan Lashermes

    Electromagnetic fault injection (EMFI) is a well known technique to disturb the behavior of a chip and weaken its security. These attacks are still mostly done on simple microcontrollers since the fault effects is relatively simple and understood.Unlocking EMFI on modern System-on-Chips (SoCs), the fast and complex chips ubiquitous today, requires to understand the impact of the faults. In this[…]

    • Seminar

    • SemSecuElec

    Masked Proofs and Their Physical Assumptions

    • April 20, 2018

    • Radboud Univeriteit, Nijmegen - Salles Petri/Turing

    Speaker : Vincent Grosso

    Les attaques par canaux auxiliaires sont des menaces majeures contre les mises en uvre cryptographiques. Pour contrer ces attaques, le masquage est une contre-mesure populaire. Un de ces principaux avantages est de pouvoir prouver la sécurité apportée par cette contre-mesure. Ces preuves se basent sur un certain nombre d’hypothèses sur le matériel qui met en uvre le masquage. Dans cette[…]
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