41 résultats

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

    • 14 février 2020

    • ANSSI - Salle Pétri/Turing

    Orateur : 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[…]
  • Vers une meilleure compréhension de l’apprentissage profond appliqué aux attaques par observation

    • 10 janvier 2020

    • CEA - Salle Métivier

    Orateur : Loïc Masure

    Les attaques par observation (SCA) exploitent les failles d’une primitive cryptographique embarquée sur un composant (type carte à puce, IoT, …), en mesurant des grandeurs physiques qui dépendent indirectement de la valeur de la clé secrète. C’est pourquoi il est primordial pour les développeurs de proposer des contre-mesures adaptées et d’évaluer leur efficacité face à un attaquant potentiel.Au[…]
  • One Fault Can Go A Long Way

    • 15 novembre 2019

    • Nanyang Technological University - Métivier

    Orateur : Shivam Bhasin

    *Abstract:* Fault attacks are considered among critical threat to embedded cryptography. This talk will be divided into in two parts. The first part of the talk will explore application of faults on advanced security primitives. We present persistent fault analysis introduced at CHES 2017 and its capability to bypass state of the art fault countermeasures as well as higher-order masking with one[…]
  • Laser-Based Attacks Against FPGA Bitstream Encryption

    • 07 juin 2019

    • Technische Universität Berlin - Salles Petri/Turing

    Orateur : Heiko Lohrke

    Field programmable gate arrays (FPGAs) use encryption to protect the configuration data or “bitstream” containing the design to be run on the device. This encryption aims at protecting the intellectual property and other secrets contained in the bitstream and preventing e.g. cloning or tampering with an FPGA implementation.This talk will demonstrate how attackers can use failure analysis equipment[…]
  • Challenges related to random number generation for cryptographic applications

    • 07 juin 2019

    • Laboratoire Hubert Curien - Salles Petri/Turing

    Orateur : Elie Noumon Allini

    The main purpose of cryptography is to ensure secure communication. In order to achieve this goal, cryptographic schemes make an intensive use of random numbers. Given that the security of these schemes highly depends on these numbers, it is important to produce high-quality random numbers. Knowing that most cryptographic modules are nowadays implemented in logic devices, we investigated True[…]
  • Do Not Trust Modern System-on-Chips - Electromagnetic fault injection against a System-on-Chip

    • 10 mai 2019

    • INRIA - Salles Petri/Turing

    Orateur : 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[…]