Head of the Computer Science Department.

Member of the AriC INRIA project-team.

LIP laboratory [CNRS, ENSL, INRIA, UCBL, U. Lyon].

computer arithmetic; algorithmic number theory; communications theory.

Lattice meetings | LattAC | Publications | Teaching | Students | Software | Talks | Contact |

- Cryptanalysis of the Multilinear Map over the Integers. With Jung Hee Cheon, Kyoohyung Han, Changmin Lee and Hansol Ryu.

- Fully Homomophic Encryption over the Integers Revisited. With Jung Hee Cheon.

- Improved security proofs in lattice-based cryptography: using the Rényi divergence rather than the statistical distance. With Shi Bai, Adeline Langlois, Tancrède Lepoint and Ron Steinfeld.

- Hardness of k-LWE and Applications in Traitor Tracing. With San Ling, Duong Hieu Phan and Ron Steinfeld.

- The Mathematics of Modern Cryptography, Berkeley, CA.
- Summer school on FHE and multilinear maps, Paris.

For my habilitation and PhD theses, see the dedicated pages: HDR, PhD.

- fplll is a
code distributed under the LGPL that
LLL-reduces euclidean lattices. The code has been written by
Martin Albrecht, David Cadé, Xavier Pujol and
myself. It may be downloaded from GitHub.

- The LLL and short lattice vectors routines of Magma V2.16.

- 09/2011: Magic@lix, Palaiseau, France.

- 01/2012: Mathematical and Statistical Aspects of Cryptography, Kolkata, India.

- 04/2012: International
Workshop on Recent Advances in Lattice Reduction Algorithms and their
Applications, Hyderabad, India.

- 06/2012: Journées Charles Hermite, Nancy, France.

- 07/2012: SCC 2012, Castro Urdiales, Spain.

- 10/2012: Ecrypt Summer School on Lattices, Porto, Portugal.

- 11/2012: Post-Quantum Cryptography and Quantum Algorithms, Leiden, The Netherlands.
- 12/2012: Colloquium Jacques Morgenstern, Sophia-Antipolis, France.
- 03/2013: Ecole de Printemps d'Informatique Théorique, Autrans, France.
- 05/2013: JNCF 2013, Luminy, France.
- 08/2013: SIAM Conference on Applied Algebraic Geometry (AG13), Fort Collins, Colorado.
- 11/2013: ICISC'13, Seoul, Korea.
- 12/2013: Microsoft Research India Workshop on Lattice-Based Cryptography, Bangalore, India.
- 03/2014: École de printemps, codes et crypto, Grenoble, France.
- 04/2014: École jeunes chercheurs en informatique mathématique, Caen, France.
- 06/2014: Colloque jeunes chercheurs en théorie des nombres, Bordeaux, France.
- 06/2014: Algebra, Codes and Networks, Bordeaux, France.
- 08/2014: CRYPTO 2014, Santa Barbara, CA.
- 11/2014: Oberwolfach workshop on Combinatorial Optimization, Oberwolfach, Germany.
- 06/2015: Summer school on real-world crypto and privacy, Sibenik, Croatia.

Laboratoire LIP

46 Allée d'Italie F69364 Lyon Cedex 07

France

Tel: +33 4 2623 3967

Department fax: +33 4 7272 8080

Email: first 'dot' last "at" ens-lyon 'dot' fr

PGP key

Last update: 15/06/2015.