Gaëtan Leurent was a postdoctoral researcher at the LACS (Laboratory of Algorithms, Cryptology and Security) in the FSTC (Faculty of Sciences, Technology and Communication) of the University of Luxembourg. He received his Ph.D. from the École Normale Supérieure in Paris, France.
He is currently with Inria, Paris.
His research interests are centered around cryptanalysis of symmetric key primitives.
His publications can be found on http://www.di.ens.fr/~leurent/pub.html
He is the author ARXtools, follow the link for more information and to download the tools.