Christophe Ritzenthaler defended his PhD at Paris VII university in 2003. After two years abroad as post-doc, he started as assistant professor at Aix-Marseille university. In 2013, he took up a professor position at Rennes 1 university.
His research deals with effective aspects of arithmetic geometry and their applications to cryptography and coding theory.
In September 2020, he will become the successor of Ludovic Rifford as executive director of CIMPA