Principal research engineer at Kudelski Security, PhD from EPFL and FHNW (2010). Presented at Black Hat, DEFCON, CCC, Troopers, SyScan, among other international conferences, I also blog and tweet.

Selected projects:

Serious Cryptography (2017): book about crypto, published by No Starch Press
SGX review (2016): research presented at Black Hat about Intel SGX
The Hash Function BLAKE (2015): book about the hash function BLAKE, published by Springer
NORX (2014): authenticated cipher candidate in the CAESAR competition
Password Hashing Competition (2013-2015): open competition that selected Argon2 as a winner
BLAKE2 (2013): hash function faster than SHA-2 and SHA-3, available in OpenSSL, Sodium, Crypto++, etc.
Cryptography Coding Standard (2013-): coding rules to prevent common weaknesses in cryptography software
SipHash (2012): keyed hash function, used in Linux, FreeBSD, OpenBSD, Python, among others