Academic Activities

Invited Talks

ICO Workskop 2024, Fully homomorphic encryption: Challenges and opportunities, Invited talk, Toulouse, France, April 3, 2024
C&ESAR 2022: Ensuring Trust in a Decentralized World, FHE: End-to-end encryption for everyone, Keynote talk, Rennes, France, November 15-16, 2022
29th IEEE Symposium on Computer Arithmetic (ARITH 2022), Fully homomorphic encryption over the discretized torus, Keynote talk, Virtual conference, September 12-14, 2022
Aix-Marseille Security Forum (AMUSEC 2022), Fully homomorphic encryption, Marseille, France, May 5-6, 2022
14th International Conference on Security for Information Technology and Communications (SecITC 2021), Functional circuits: A new paradigm for fully homomorphic encryption, Keynote talk, Virtual meeting, November 25-26, 2021
Workshop on ICT Hardware Enabled Security, End-to-end encryption, ~~Durham, NC, USA,~~ Virtual meeting, August 25-27, 2020
12th International Conference on Security for Information Technology and Communications (SecITC 2019), Privacy...please!, Bucharest, Romania, November 14-15, 2019
COSIC Summer School on Cyber Security and Cryptography, Linearly homomorphic encryption and applications, Leuven, Belgium, June 3-7, 2019
8th Annual European Data Protection & Privacy Conference, Data protection and privacy: A fundamental right for users, a myriad of opportunities for developers, Brussels, Belgium, November 30, 2017
14th Workshop on Fault Diagnosis and Tolerance in Cryptography (FDTC 2017), Controlled fault injection: Wishful thinking, thoughtful engineering, or just luck?, Panel discussion, Taipei, Taiwan, September 25, 2017
Bay Area Crypto Day, Private data aggregation over selected subsets of users, Berkeley, CA, USA, November 20, 2015
Yet Another Conference on Cryptography – YACC 2014, Inversion-free arithmetic on elliptic curves through isomorphisms, Porquerolles, France, June 9-13, 2014
6ièmes Rencontres Arithmétique de l’Informatique Mathématique (RAIM 2013), Arithmétique co-Z sur courbes elliptiques, Paris, France, November 18-20, 2013
5th International Conference on Algebraic Informatics, On elliptic curve Paillier schemes, Porquerolles, France, September 3-6, 2013
10th Workshop on Faut Diagnosis and Tolerance in Cryptography (FDTC 2013), Elliptic curve cryptosystems in the presence of faults, Santa Barbara, USA, August 20, 2013
ECRYPT II Workshop on Physical Attacks, Elliptic curves and fault attacks, Graz, Austria, November 27-28, 2012
ECRYPT II Summer School on Design and Security of Cryptographic Algorithms and Devices, Prime generation: News from the front, Albena, Bugaria, May 29 – June 3, 2011
Journées «Codage et Cryptographie» 2011, Courbes elliptiques de Huff et applications cryptographiques, St Pierre d'Oléron, France, April 3-8, 2011
Opening day for "GDR Maths et Entreprise", Elliptic curve cryptography, Institut Henri Poincaré, Paris, France, December 1, 2010
Workshop on Tools for Cryptanalysis 2010 (TOOLS 2010), A primer on lattice reduction, Egham, UK, June 22-23, 2010
PAca Security Trends in Embedded Systems (PASTIS 2010), Highly regular exponentiation algorithms and side-channel attacks, Gardanne, France, June 16-17, 2010
École Jeunes Chercheurs en Informatique Mathématique, Ingénierie cryptographique : de la recherche académique à la pratique industrielle, Chambéry, France, March 29 – April 2, 2010
2009 International Workshop on Cryptography and Network Security, Elliptic curve cryptography: New models and implementation tricks, Taipei, Taiwan, December 14-15, 2009
B-IT Summer School on Cryptography – Crypt@b-it 2009, Cryptography in practice: How to make it small, fast and secure, Bonn, Germany, August 3-7, 2009
Crypto'Puces 2009, Attaques par fautes sur les systèmes basés sur les courbes elliptiques, Porquerolles, France, June 2-6, 2009
4th Workshop on Coding and Cryptography, Resource-constrained implementation of elliptic curve cryptography, Cork, Ireland, May 19-20, 2008
4th Taiwanese-French Conference on Information Technology – TFIT 2008, Secure design of RSA-based cryptosystems, Taipei, Taiwan, March 3-5, 2008
TWISC Summer School on Information Security – ISSS 2007, Cryptographic engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, August 6-17, 2007
5th International Workshop on the State of the Art in Cryptology and New Challenges Ahead, Quo vadis cryptology? Threat of side-channel attacks, Warsaw, Poland, May 28, 2007
2nd International Conference on Security of Information and Networks (SIN 2007), White-box cryptography: From theory to practice, Gazimagusa, North Cyprus, May 8-10, 2007
ECRYPT Summer School on Cryptographic Hardware, Side-Channel and Fault Attacks, Fault attacks: An algorithmic perspective, Louvain-la-Neuve, Belgium, June 12-15, 2006
IPAM Workshop on Special Purpose Hardware for Cryptography: Attacks and Applications, Elliptic curve cryptosystems in the presence of faults, University of California, Los Angeles, CA, USA, December 4-8, 2006
8th Workshop on Elliptic Curve Cryptography (ECC 2004), Secure implementation of elliptic curve cryptography, Bochum, Germany, September 20-22, 2004
UCL Graduate School in Electronics and Communications, I: Security proofs, II: Advanced side-channel attacks, Louvain-la-Neuve, Belgium, May 11-13, 2004
5th Workshop on Cryptographic Hardware and Embedded Systems (CHES 2003), Are software and hardware counter-measures winning the war against side-channel leakage?, Panel discussion, Cologne, Germany, September 7-10, 2003

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Seminars

Stanford University, Fully homomorphic encryption over the discretized torus, Reading Group, Stanford CA, USA, April 28, 2023
Computer Security and Industrial Cryptography (COSIC), Bringing end-to-end encryption to AI, Leuven, Belgium, July 9, 2020
Radboud University, Privacy... please!, Mini-Symposium on Cryptography for Long-Term Security and Privacy, Nijmegen, The Netherlands, March 22, 2019
Computer Security and Industrial Cryptography (COSIC), Privacy: Working over encrypted data, Leuven, Belgium, January 8, 2018
University of California, Santa Barbara, LLL algorithm: A Swiss army knife for cryptographers and cryptanalysts, Santa Barbara, CA, USA, February 10, 2016
University of California, Santa Barbara, Elliptic curves and fault attacks, Santa Barbara, CA, USA, October 28, 2015
Stanford Security Laboratory, Software protection against fault attacks, Stanford, CA, USA, March 18, 2013
Université de Caen Basse-Normandie, Scalar multiplication on Weierstraß elliptic curves from co-Z arithmetic, Caen, France, May 10, 2012
Computer Security and Industrial Cryptography (COSIC), Huff curves and applications to cryptography, Leuven, Belgium, February 9, 2012
10^ème Anniversaire du Master Security, Cryptology and Coding of Information systems, On-board RSA key generation: An industrial experience, Grenoble, France, September 12, 2011
Orange Labs, Torus-based cryptography and an application to the ACJT scheme, Caen, France, June 17, 2011
Japan Advanced Institute of Science and Technology (JAIST), The arithmetic of Huff curves and its cryptographic applications, Nomi, Ishikawa, Japan, December 15, 2010
Institut Fourier, Cryptography and industry, Grenoble, France, November 4, 2010
Institut Fourier, Practical cryptography, Grenoble, France, January 21, 2010
UCL Crypto Group, Unified point addition formulas for elliptic curve cryptography and implementation attacks, Louvain-la-Neuve, Belgium, August 25, 2009
International Conference on Geometry and Cryptography (GeoCrypt 2009), Unified, strongly unified and complete formulæ for point addition on elliptic curves, Pointe-à-Pitre, Guadeloupe, French West Indies, April 27 – May 1, 2009
Institut Fourier, Cryptography: From theory to practice – An industrial perspective, Grenoble, France, February 12, 2009
DIWALL Seminar, The methodology of provable security, Rennes, France, March 20, 2008
Université de Rennes 1, Generation of prime numbers on portable devices, Rennes, France, November 10, 2006
Université de Caen Basse-Normandie, A practical and tightly secure signature scheme, Caen, France, October 26, 2006
Japan Advanced Institute of Science and Technology (JAIST), Fault attacks: Measures and countermeasures, Nomi, Ishikawa, Japan, October 16, 2006
UCL Crypto Group, Lattice basis reduction and cryptography, Louvain-la-Neuve, Belgium, December 2005
Laboratoire d'Informatique, de Robotique et de Microélectronique de Montpellier (LIRMM), Sur la sécurité des signatures numériques, Montpellier, France, June 2005
C.M.I., UFR MIM de Marseille, Journée Cryptographie & Sécurité Informatique, Introduction à la sécurité prouvée, Marseille, France, April 2005
National Cheng Kung University (NCKU), Provably secure signature schemes, Tainan, Taiwan, March 2005
Université de Rennes 1, Elliptic curves and side-channel analysis, Rennes, France, September 2003
Azur'Crypt, Preventing side-channel analysis in elliptic curve cryptosystems: An update, Toulon, France, February 11, 2003
UCL Crypto Group, Elliptic curves and side-channel analysis, Louvain-la-Neuve, Belgium, January 29, 2003
Ruhr-Universität Bochum, Security against side-channel analysis, Bochum, Germany, January 2003
Azur'Crypt, Sécurité des implémentations sur courbes elliptiques pour cartes à puce, Luminy, France, June 5, 2001
AT&T Research Labs, Security paradoxes, Florham Park, NJ, USA, August 1999
National Cheng Kung University (NCKU), Introduction to elliptic curve cryptography, Tainan, Taiwan, May 1999
École normale supérieure (ENS), Security analysis of RSA-type cryptosystems, Paris, France, October 1997
University of Cambridge, Security analysis of RSA-type cryptosystems, Cambridge, UK, September 25, 1997

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Reading Committees

Habilitation (HDR) Committees

Abderrahmane Nitaj, Cryptanalysis of public-key cryptosystems, Université de Caen Basse-Normandie, Caen, France, December 1, 2016
Duong-Hieu Phan, Some advances in broadcast encryption and traitor tracing, École Normale Supérieure, Paris, France, November 19, 2014
Emmanuel Prouff, Analyse des attaques par canaux auxiliaires et preuves de sécurité, Université Pierre et Marie Curie, Paris, France, January 27, 2014
Sébastien Canard, La cryptographie au service de la vie privée, Université de Caen Basse-Normandie, Caen, France, December 2, 2009

PhD Committees

Ofer Yifrach Stav, Fast and private pool testing and contributions to experimental mathematics, École normale supérieure & Paris PSL, Paris, France, February 28, 2024
Quentin Yang, Coercion resistance in electronic voting: Design and analysis, Université de Lorraine, Nancy, France, June 23, 2023
Mohamad Mansouri, Performance and verifiability of IoT security protocols, Sorbonne Université & EURÉCOM, Sophia Antipolis, France, April 6, 2023
Élise Tasso, Hardware security of isogeny-based cryptography, École Nationale Supérieure des Mines de Saint-Étienne, Gardanne, France, December 12, 2022
Nagarjun Dwarakanath, Theoretical and practical contributions to homomorphic encryption, Université de Versailles Saint-Quentin-en-Yvelines, Versailles, France, December 13, 2021
Gabriel Zaid, Bridging deep learning and classical profiled side-channel attacks, Université de Lyon, Saint Etienne, France, November 30, 2021
Petra Šala, Attacks and security proofs of password authenticated key exchange protocols, Université du Luxembourg, Esch-sur-Alzette, Luxembourg, September 15, 2021
Răzvan Roşie, On the achievability of white-box cryptography, École Normale Supérieure, Paris, France, May 28, 2019
Louiza Papachristodoulou, Masking curves: Side-channel attacks & countermeasures on elliptic curves, Radboud Universiteit, Nijmegen, The Netherlands, March 22, 2019
Marc Beunardeau, Cryptographie appliquée à la sécurité des systèmes d'information, École Normale Supérieure, Paris, France, January 15, 2019
Margaux Dugardin, Amélioration d’attaques par canaux auxiliaires sur la cryptographie asymétrique, TELECOM ParisTech, Paris, France, July 11, 2017
Marie-Angela Cornélie, Implantations et protections de mécanismes cryptographiques logiciels et matériels, Université Grenoble Alpes – Institut Fourier, Grenoble, France, April 12, 2016
Aurore Guillevic, Étude de l’arithmétique des couplages sur les courbes algébriques pour la cryptographie, École Normale Supérieure, Paris, France, December 20, 2013
Mario Strefler, Diffusion chiffrée avec traçage de traîtres, École Normale Supérieure, Paris, France, September 26, 2013
Roch Lescuyer, Outils cryptographiques pour les accréditations anonymes, Université Paris 7 - Denis Diderot, Paris, France, November 21, 2012
Dephine Leresteux, Injection de fautes et de logiciels sur les implémentations cryptographiques, Université Paris 7 – Denis Diderot, Paris, France, July 5, 2012
Junfeng Fan, Efficient arithmetic in embedded cryptography and cryptanalysis, Katholieke Universiteit Leuven, Leuven, Belgium, February 9, 2012
Davide Alessio, Sur quelques questions de cryptographie, Université de Rennes 1, Rennes, France, December 13, 2011
Alexandre Venelli, Contribution à la sécurité physique des cryptosystèmes embarqués, Université de la Méditerranée - Aix-Marseille II, Marseille, France, January 31, 2011
Pascal Delaunay, Attaques physiques sur des algorithmes de chiffrement par flot, Université de Versailles Saint-Quentin-en-Yvelines, Versailles, France, January 28, 2011
Augustin P. Sarr, Key agreement protocols: Security models, analyses, and designs, Université Joseph Fourier - Grenoble, Grenoble, France, October 18, 2010
Alexandre Berzati, Analyse cryptographique des altérations d'algorithmes, Université de Versailles Saint-Quentin-en-Yvelines, Versailles, France, September 29, 2010
Léonard Dallot, Sécurité de protocoles cryptographiques fondés sur les codes correcteurs d'erreurs, Université de Caen Basse-Normandie, Caen, France, July 15, 2010
Denis Réal, The utilization of near-field techniques to enhance electro-magnetic side-channel cryptanalysis: New attacks and countermeasures, INSA de Rennes, Rennes, France, April 1, 2010
Alexander Kruppa, Speeding up integer multiplication and factorization, Université Henri Poincaré – Nancy 1, Nancy, France, January 28, 2010
Iwen Coisel, Authentification et anonymat à bas coût : Modélisations et protocoles, Université de Caen Basse-Normandie, Caen, France, October 9, 2009
Matthieu Rivain, On the physical security of cryptographic implementations, Université du Luxembourg, Luxembourg, September 22, 2009
Philippe Bulens, Mathematical and physical concerns regarding cryptographic key lengths, Université catholique de Louvain, Louvain-la-Neuve, Belgium, August 24, 2009
Cécile Delerablée, Cryptographie dans les groupes, Université de Paris 7 - Denis Diderot, Paris, France, July 1, 2009
Christophe Clavier, De la sécurité des cryptosystèmes embarqués, Université de Versailles Saint-Quentin-en-Yvelines, Versailles, France, November 23, 2007
Christophe Giraud, Attaques de cryptosystèmes embarqués et contre-mesures associées, Université de Versailles Saint-Quentin-en-Yvelines, Versailles, France, October 26, 2007
Benoît Chevallier-Mames, Cryptographie à clé publique : Constructions et preuves de sécurité, Université de Paris 7 - Denis Diderot, Paris, France, November 16, 2006
Mustapha Hédabou, Amélioration et sécurisation des calculs arithmétiques pour la cryptographie basée sur les courbes elliptiques, INSA Toulouse, Toulouse, France, October 20, 2006
Pierre-Yvan Liardet, Ingénierie cryptographique: Implantations sécurisées, Université Montpellier II, Montpellier, France, July 12, 2006
Olivier Billet, Cryptographie multivariable, Université de Versailles Saint-Quentin-en-Yvelines, Versailles, France, December 16, 2005
Laurent Bussard, Trust establishment protocols for communicating devices, EURÉCOM Institute & ENST, Sophia Antipolis, Nice, France, October 15, 2004
Christophe Negre, Opérateurs arithmétiques pour la cryptographie basée sur les courbes elliptiques, Université de Montpellier 2, Montpellier, France, September 24, 2004
Régis Bevan, Estimation statistique et sécurité des cartes à puce - Évaluation d'attaques DPA évoluées, Université de Paris-Sud 11, Orsay, France, June 25, 2004
Sébastien Canard, Signatures de groupe, variantes et applications, Université de Caen, Caen, France, October 2, 2003
Mathieu Ciet, Aspects of fast and secure arithmetics for elliptic curve cryptography, Université catholique de Louvain, Louvain-la-Neuve, Belgium, June 19, 2003

Co-Supervision of Theses and Interns

Ahmed Qureshi, M.S. student (USC, Los Angeles), 2018
Petra Šala, Ph.D. student (U. Luxembourg, Luxembourg), 2017–2021
Fariborz Salehi, Ph.D. student (Caltech, Pasadena), 2017
Yan Michalevsky, Ph.D. student (Stanford University, Stanford), 2017
Amit Datta, Ph.D. student (Carnegie Mellon University, Pittsburgh), 2015
Alain Passelègue, Ph.D. student (ENS, Paris), 2015
Fabrice Benhamouda, Ph.D. student (ENS, Paris), 2014
Tancrède Lepoint, M.S. student (U. Joseph Fourier, Grenoble), 2011
Julien Devigne, M.S. student (U. Limoges, Limoges), 2010
Davide Alessio, Ph.D. student (U. Rennes 1, Rennes), 2007–2011
Philippe Bulens, Ph.D. student (UCL, Louvain-la-Neuve), 2003–2009
Benoît Chevallier-Mames, Ph.D. student (U. Paris 7 - Denis Diderot, Paris), 2003–2006
Mathieu Ciet, Ph.D. student (UCL, Louvain-la-Neuve), 2001–2003
Olivier Billet, M.S. student (U. Nice, Sophia Antipolis & ENST, Paris), 2002
Aurore Gillet, M.S. student (UCL, Louvain-la-Neuve), 1997
Alexis Bernard and Nicolas Degand, M.S. students (UCL, Louvain-la-Neuve), 1996

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