I am a cryptographer working within CryptoExperts, a solution provider in the area of cryptography.

Before joining CryptoExperts in 2010, I have been a cryptography engineer at Oberthur Technologies (smart card manufacturer, now Idemia) and PhD student at University of Luxembourg (2006-2009) focusing on cryptographic implementations and side-channel attacks.

This webpage contains information about my scientific activities, publications, PhD thesis, and talks.


May 18-23, 2019: I'll be at WhibOx 2019 and Eurocrypt 2019  
May 16, 2019: Invited keynote at ICMC19  
Mar 29, 2019: Start of WhibOx contest edition 2 
Mar 25, 2019: Submission of Pyjamask to NIST 
Jan 2019: Papers on WBC at TCHES (ia.cr/2019/076), COSADE (ia.cr/2018/869) and JCEN (ia.cr/2018/098
Oct 10, 2018: Invited talk at Journées C2 on "Secure Computation in the Presence of Noisy Leakage"  
Sep 21, 2018: PhD defense of Dahmun Goudarzi
Aug 13, 2018: Two accepted papers at ASIACRYPT: ia.cr/2017/929 and ia.cr/2018/439  

Scientific Activities

Current projects:
  - Pyjamask: a cipher submitted to NIST call for lightweight cryptography
  - VERISICC: FUI funded project on formal verification of side-channel countermeasures

Program co-chair of CHES 2018 with Dan Page (co-editors-in-chief of IACR TCHES Vol. 2018)  

Program committee member of   CHES 2019   ASIACRYPT 2017   CHES 2017   COSADE 2017   TIs 2016   SPACE 2016   CHES 2016   EUROCRYPT 2016   COSADE 2016   GREHACK 2015   CHES 2015   COSADE 2015   CHES 2014   FDTC 2014   COSADE 2014   CARDIS 2013   CHES 2013   FDTC 2013   COSADE 2013   CARDIS 2012   CHES 2012   FDTC 2012   HOST 2012   CARDIS 2011   HOST 2011   HOST 2010  

PhD advisor of
  - Junwei Wang (2017-present) on White-Box Cryptography – co-supervised with Jean-Sébastien Coron, Sihem Mesnager and Pascal Paillier
  - Dahmun Goudarzi (2015-2018) on Secure Implementation of Block Ciphers against Physical Attacks – co-supervised with Damien Vergnaud

General co-chair of CHES 2015 with Emmanuel Prouff and Guénaël Renault – French press on the event: Les rois du cryptage à Saint-Malo

Co-organiser of ECRYPT-CSA workshops WISE 2015, AWACS 2016, WhibOx 2016, wr0ng 2017

Co-organiser of the WhibOx contest edition 1 (CHES 2017 CTF) and edition 2 (CHES 2019 CTF)

Member of IACR since 2007

















On the Physical Security of Cryptographic Implementations

PhD thesis defended on September 22nd 2009 at University of Luxembourg.

PhD advisor: Jean-Sébastien Coron

PhD committee: Alex Biryukov, Jean-Sébastien Coron, Louis Goubin, Marc Joye, Franck Leprévost, François-Xavier Standaert

  pdf file


Contact information

If you wish to contact me, send me an email: