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655 results

    • Seminar

    • SemSecuElec

    Improved Blind Side-Channel Analysis by Exploitation of Joint Distributions of Leakages

    • April 05, 2019

    • Faculté des sciences de Limoges - Salles Pétri/Turing

    Speaker : Léo Reynaud

    Les attaques side channel classiques nécessitent généralement la connaissance du clair (ou du chiffré) afin de calculer des données internes qui seront comparées à des fuites. Des attaques permettent cependant de s’affranchir de ces connaissances, les attaques par distributions jointes. Ces attaques supposent un attaquant capable d’inverser le modèle de consommation, mais aucune connaissance sur[…]
    • Seminar

    • SemSecuElec

    When Electromagnetic Signals Reveal Obfuscated Malware: Deep and Machine Learning Use cases

    • October 22, 2021

    • Univ Rennes, CNRS, Inria, IRISA Rennes - Salle Petri/Turing

    Speaker : Duy-Phuc Pham et Damien Marion

    The Internet of Things (IoT) is constituted of devices that are expo-nentially growing in number and in complexity. They use plentiful customized firmware and hardware, ignoring potential security issues, which make them a perfect victim for cybercriminals, especially malware authors.We will describe a new usage of side channel information to identify threats that are targeting the device. Using[…]
    • Seminar

    • SemSecuElec

    Implémentations sécurisées et évaluation pré-silicium contre les attaques physiques.

    • February 04, 2022

    • Secure-IC - Web-conférence

    Speaker : Sofiane Takarabt

    Side-channel attacks remain a permanent threat against embedded systems, thus reliable protections should be implemented and must be minutely evaluated. In this presentation, we study different possible ways to evaluate against such threats. We show how an evaluation can be carried out to validate a security level of a protected hardware implementation. This approach allows us to estimate in[…]
    • Seminar

    • SemSecuElec

    One Fault Can Go A Long Way

    • November 15, 2019

    • Nanyang Technological University - Métivier

    Speaker : 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[…]
    • Seminar

    • SemSecuElec

    Schindler-Itoh/Wiemers revisited: recovering full RSA/ECC private key from noisy side-channel observations

    • September 28, 2018

    • NinjaLab - Salle Métivier

    Speaker : Victor Lomné et Thomas Roche

    Side-channel attacks on public-key cryptography (i.e. modular exponentiation for RSA or scalar multiplication for ECC) often boils down to distinguishing the 0s from the 1s in the binary representation of the secret exponent (resp. secret scalar).When state-of-the-art countermeasures are implemented, this detection must be errorless: thanks to masking techniques, erroneous masked exponents (resp.[…]
    • Seminar

    • Cryptography

    Fault tolerant algorithms via decoding: Interleaving techniques

    • June 17, 2022

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

    Speaker : Eleonora Guerrini - Université Montpellier

    Evaluation Interpolation algorithms are a key tool for the algebraic decoding of a large class of codes, including the famous Reed Solomon codes. Recent techniques allow the use of this type of decoding in the more general setting of fault tolerant algorithms, where one has to interpolate erroneous data (potentially computed by an untrusted entity). In this talk we will present algorithms to[…]