Formerly a DGA engineer, then scientific deputy director at the DCSSI (now ANSSI), part-time professor at the University of Versailles - Saint-Quentin-en-Yvelines and holder of the Cryptology Chair of the Sorbonne University Foundation, Antoine Joux is currently a permanent researcher at the CISPA Helmholtz Center for Cybersecurity in Saarbrücken, Germany, and honorary professor at the University of Saarbrücken.
His specialty is cryptography, and much of his work focuses on cryptanalysis, the study of vulnerabilities in cryptographic systems. Co-winner of the Gödel Prize in 2013 and Fellow of the IACR (International Association for Cryptologic Research), he has been awarded an ERC Advanced Grant (Almacrypt) for the algorithmic study of mathematical problems whose supposed difficulty serves as a foundation in public-key cryptography.