Full-time researcher at the Computer Science Department at the École Normale Supérieure, Paris, France. He is a Senior Researcher in the Crypto Team (INRIA Project-Team CASCADE), a co-editor of multiple proceedings on cryptography and network security, and he co-authors numerous publications on group key establishment constructions and is an expert on password-based authentication.
Professor at Florida State University, who is a leading expert in group key establishment. He is one of the two authors of arguably the most popular design strategy used in group key establishment protocols that require a constant number of communication rounds, even for many participants. In addition, he is an expert for security questions in the Internet of Things and for sensor networks.
Professor at the Interdisciplinary Arts and Sciences , University of Washington, Tacoma, USA, expert in Boolean functions, graph theory, combinatorics, combinatorial designs, coding theory, theoretical computer science. He is a holder of the Erdos number 1 (solved 3 Erdos problems).
Researcher at Telefonica Research and Development, his work spans from system security to cryptographic tools with the main goal to improve online privacy. Before joining Telefonica, he was he was with the Institute of Information Security at the Swiss Federal Institute of Technology (ETH) Zürich. Prior to that, he was a Juan de la Cierva fellow at the Universidad Politécnica de Madrid. He has also been visiting researcher at the IBM Zurich Research Lab, at INRIA Rhône-Alpes, and the UNESCO Chair in Data Privacy. He has published several papers in top-tier security conferences and has closely worked with industry partners to deploy his research output.