I was born in September 1972. I learned mathematics for many years. I have an engineer diploma from Ecole Polytechnique and another one from a French school named ENSTA. I am now Cryptography Researcher for Gemplus International, a French Smart Card company. I am married and I have a 2 week-old little girl named Camille. Mathematic is one of my main hobbies (with music) and I particularly like Group Theory and Number Theory.