@NXP 🇧🇪. Side-channel evaluation and countermeasures. Post-quantum cryptography. 🦀
Belgium
Joined April 2019
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Olivier Bronchain retweeted
Less than a week to Real World Crypto in Toronto and we have a few more sponsors to thank: @TIIuae, @NXP, @ISARACorp, @NCCGroupplc, @Bloomberg, and @MITREcorp. See you all soon!
Olivier Bronchain retweeted
Pleased to announce that Dr Gaëtan Cassiers of the UCLouvain Crypto Group will give a keynote speech at Cosade'24 entitled "Composable masking schemes": cosade.org/cosade24/keynotes…
Olivier Bronchain retweeted
22nd Smart Card Research and Advanced Application Conference (CARDIS) 2023
November 14-16, 2023
Venue: University of Amsterdam, Amsterdam, Netherlands
Registration is now open!
sbd-research.nl/cardis-2023/…
New paper from our @NXP PQC team !
A new methodology for SCA and FA against Dilithium, scaling gently with noise !
We exploit many different variables during accepted as well as rejected signatures and attack shuffled implementations.
Check it out: eprint.iacr.org/2023/1545
Olivier Bronchain retweeted
I have recently released a new hardware design of the Ascon cipher (github.com/rprimas/ascon-ver…). It is written in Verilog, is easy to work with, and comes with a very permissive CC0 license. Have fun 😉.
I am happy to share that our paper "From MLWE to RLWE: A Differential Fault Attack on Randomized & Deterministic Dilithium" will appear in TCHES23 Issue 4 co-authored by our @NXP PQC Innovation team.
eprint.iacr.org/2023/1074
My former team and SIMPLE-Crypto are organizing the CHES23 CTF !
Go and break an hardware masked AES !
The CHES challenge was just launched at ches.iacr.org/2023/challenge…!
Thanks to @mrivain & co for organizing. Please contact them in case you have questions.
Olivier Bronchain retweeted
#ePrint Enabling FrodoKEM on Embedded Devices: JW Bos, O Bronchain, F Custers, J Renes, D Verbakel, C van Vredendaal ia.cr/2023/158
Olivier Bronchain retweeted
I release the code of my CHES 2023 paper about scheme-aware profiling attacks against masked implementations.
The code 👉 github.com/uclcrypto/Scheme-…
The paper 👉 tches.iacr.org/index.php/TCH…
Olivier Bronchain retweeted
🚴♀️ Ça a l'air de bien rouler pour Marcel 🤓 Pour sa santé, le camion a arrêté de fumer
Bravo aux étudiants du Kot-à-jeux qui ont remporté le prix du plus beau vélo folklorique au #24hveloLLN de Louvain-La-Neuve (Belgique). Chauffe Marcel 🚲 – at Paris, France
New ePrint is out !
We discuss side-channel security of Dilithium, new masking gadgets, new sensitivity analysis and the impact of randomized and deterministic versions on SCA security.
ia.cr/2022/1406
My last UCLouvain paper "Bitslicing Arithmetic/Boolean Masking Conversions for Fun and Profit with Application to Lattice-Based KEMs" has been accepted to TCHES2022.
See you in @IacRches, Leuven, for the talk.
ia.cr/2022/158
Olivier Bronchain retweeted
With real pieces of scalib (poke @BronchainO ) that now efficiently supports modular operations in the factor graph for SASCA: github.com/simple-crypto/SCA…
Olivier Bronchain retweeted
Due to many requests we decided to extend the submission deadline for CARDIS 2022. New deadline 4th of July!
🚨new version of SCALib (v.0.4.2):
1. New features (Multivariate t-test, new operations for SASCA)
2. Improved performances (for SNR and T-tests).
3. AVX2 instructions support on PyPi.
4. Fine grain control on number of thread used.
scalib.readthedocs.io/en/sta…
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4. Fine grain control on number of thread used.
The number of threads used by SCALib can new be easily controlled. You can either use an environment variable or define it directly in the python scripts.
See scalib.readthedocs.io/en/sta…