Christina Boura

I am a Full Professor at the Institut de Recherche en Informatique Fondamentale (IRIF), Université Paris Cité. My research primarily focuses on symmetric cryptography and cryptanalysis.

I’m also a Junior Member of the Institut Universitaire de France (2025-2030), IUF webpage here.

From 2013 to 2024, I was an Associate Professor at Laboratoire de Mathématiques de Versailles (LMV) of Université de Versailles Saint-Quentin-en-Yvelines.

I defended my HDR (Habilitation à Diriger des Recherches) on February 17th, 2023. [pdf][slides]

Contact:
Institut de Recherche en Informatique Fondamentale (IRIF)
(Équipe Algorithmes et Complexité)
Université Paris Cité, Case 7014
75205 Paris Cedex 13 France
Office/Bureau: 3008, Bâtiment Sophie Germain, 
8 Place Aurélie Nemours 75013 Paris
Email: christina.boura@irif.fr

Students

PhD Students

2025-2028: William Simonnet (IRIF, CNRS), Adversarial attacks on neural networks.
2025-2028: Adrien Siproudhis (NTU, Singapore), Cryptanalysis of neural networks.
2024-2027: Baptiste Germon (Université de Rennes), Tools for differential cryptanalysis.
2021-2024: Margot Funk (UVSQ), Algorithms and tools for the cryptanalysis of symmetric primitives. Defended on October 14, 2024.
2021-2024: Rachelle Heim Boissier (UVSQ), Symmetric cryptanalysis: from primitives to modes. Defended on October 15, 2024. (Prix de thèse 2025 du GDR Sécurité Informatique).
2019-2021: Daniel Coggia (Inria), Cryptanalysis techniques for lightweight encryption schemes. Defended on October 8, 2021.

Master Students

2025: William Simonnet (IRIF, CNRS), Adversarial attacks on neural networks.
2024: Baptiste Germon (Université Rennes 1), Hypothèse d’indépendance dans la cryptanalyse différentielle.
2024: Adrien Siproudhis (UVSQ), Utilisation des techniques de cryptanalyse pour retrouver les paramètres internes d’un réseaux de neurones.
2024: Samuel Experton (UVSQ), Étudier le rôle de la fonction d’activation dans des attaques récentes contre des réseaux de neurones.
2023: Yann Le Doré (UVSQ), Tree representation of Boolean functions and application to symmetric cryptanalysis.
2021: Margot Funk (UVSQ), Cryptanalysis of the hash function Troïka.
2018: Daniel Coggia (Inria), On subspace-trail cryptanalysis.
2018: Florian Wartelle (Inria), Searching a counter-example to the conjecture APN=CAPN for odd n.

Publications

Books

I co-edited together with María Naya-Plasencia two books on symmetric cryptography:

Symmetric Cryptography, Volume 1: Design and Security Proofs, November 2023, Wiley-ISTE (272 Pages).
Symmetric Cryptography, Volume 2: Cryptanalysis and Future Directions, November 2023, Wiley-ISTE (272 Pages).

Journal Papers

Haolin Liu, Adrien Siproudhis, Christina Boura, Thomas Peyrin. « Model Extraction of Convolutional Neural Networks with Max-Pooling ». In IACR Transactions on Symmetric Cryptology, 2026(3), to appear. pdf
Christina Boura, Geoffroy Couteau, Léo Perrin and Yann Rotella. « SoK: On Shallow Weak PRFs ». In IACR Transactions on Symmetric Cryptology, 2025(3), 289-336. pdf, slides
Christina Boura, Patrick Derbez and Baptiste Germon. « Extending the Quasidifferential Framework: From Fixed-Key to Expected Differential Probability ». In IACR Transactions on Symmetric Cryptology, 2025(1), 515-541. pdf
Jinliang Wang, Christina Boura, Patrick Derbez, Kai Hu, Muzhou Li and Meiqin Wang. « Cryptanalysis of Full-Round BipBip ». In IACR Transactions on Symmetric Cryptology, 2024(2), 68-84. pdf
Christina Boura, Patrick Derbez and Margot Funk. « Related-Key Differential Analysis of the AES ». In IACR Transactions on Symmetric Cryptology, 2023(4), 215-243. pdf
Christina Boura and Daniel Coggia. « Efficient MILP Modelings for Sboxes and Linear Layers of SPN ciphers ». In IACR Transactions on Symmetric Cryptology, 2020(3), 327-361. pdf
Shizhu Tian, Christina Boura and Léo Perrin. « Boomerang Uniformity of Popular S-box Constructions ». In Designs, Codes and Cryptography, 88(9): 1959-1989 (2020). pdf
Christina Boura, Nicolas Gama, Mariya Georgieva and Dimitar Jetchev. « CHIMERA: Combining Ring-LWE-based Fully Homomorphic Encryption Schemes ». In Journal of Mathematical Cryptology. Volume 14, Issue 1, Pages 316–338 (2020). pdf
Christina Boura, Eirini Chavli and Maria Chlouveraki. « The BMM symmetrising trace conjecture for the exceptional 2-reflection groups of rank 2 ». In Journal of Algebra 558, Special issue in honor of Michel Broué, 176-198 (2020). pdf
Christina Boura, Eirini Chavli, Maria Chlouveraki and Konstantinos Karvounis. « The BMM Symmetrising Trace Conjecture for groups G4, G5, G6, G7, G8 ». In J. Symb. Comput. 96:62-84 (2020). pdf
Christina Boura, Anne Canteaut and Daniel Coggia. « A General Proof Framework for Recent AES Distinguishers ». In IACR Transactions of Symmetric Cryptology, 2019(1), 170-191. pdf
Christina Boura and Anne Canteaut. « On the Boomerang Uniformity of Cryptographic Sboxes ». In IACR Transactions on Symmetric Cryptology, 2018(3), 290-310. pdf
Christina Boura, Anne Canteaut, Jérémy Jean and Valentin Suder. « Two Notions of Differential Equivalence on Sboxes ». Designs, Codes and Cryptography, 87(2-3): 185-202 (2019). pdf
Christina Boura, Virginie Lallemand, Maria Naya-Plasencia and Valentin Suder. « Making the impossible possible ». In Journal of Cryptology 31(1): 101-133 (2018). pdf
Christina Boura, Anne Canteaut, Lars R. Knudsen and Gregor Leander. « Reflection ciphers ». In Designs, Codes and Cryptography 82(1-2): 3-25, 2017. pdf
Christina Boura and Anne Canteaut. « On the influence of the algebraic degree of $F^{-1}$ on the algebraic degree of $G circ F$. » In IEEE Transactions on Information Theory 59(1): 691-702, 2013. pdf

Papers in International Peer-Reviewed Conference Proceedings

Augustin Bariant, Christina Boura, Baptiste Germon, Rachelle Heim Boissier, Charles Meyer-Hilfiger, Tyge Tiessen. « Cryptanalysis of the Alternating Mod-2/Mod-3 Weak PRF ». In ASIACRYPT 2026, to appear.
Haolin Liu, Adrien Siproudhis, Samuel Experton, Peter Lorenz, Christina Boura, Thomas Peyrin. « Navigating the Deep: End-to-End Extraction on Deep Neural Networks ». In EUROCRYPT 2026, Part VI, volume 16546 of Lecture Notes in Computer Science, Springer, pages 482-512, 2026. pdf
Christina Boura, Patrick Derbez, Baptiste Germon, Rachelle Heim Boissier and María Naya-Plasencia. « SPEEDY: Caught at Last ». In ASIACRYPT 2025, Part I, volume 16245 of Lecture Notes in Computer Science, Springer, pages 189-220, 2025. pdf
Jules Baudrin, Sonia Belaïd, Nicolas Bon, Christina Boura, Anne Canteaut, Gaëtan Leurent, Pascal Paillier, Léo Perrin, Matthieu Rivain, Yann Rotella and Samuel Tap. « Transistor: a TFHE-friendly Stream Cipher ». In CRYPTO 2025, Part V, volume 16004 of Lecture Notes in Computer Science, Springer, pages 530-565, 2025. pdf
Christina Boura, Shahram Rasoolzadeh, Dhiman Saha and Yosuke Todo. « Multiple-Tweak Differential Attack Against SCARF ». In ASIACRYPT 2024, Part VII, volume 15490 of Lecture Notes in Computer Science, Springer, pages 330-360, 2024. pdf
Christina Boura, Nicolas David, Patrick Derbez, Rachelle Heim Boissier and María Naya-Plasencia. « A generic algorithm for efficient key recovery in differential attacks – and its associated tool ». In EUROCRYPT 2024, Part I, volume 14651 of Lecture Notes in Computer Science, Springer, pages 217-248, 2024. pdf, code
Christina Boura, Patrick Derbez and Margot Funk. « Alternative Key Schedules for the AES ». In ACNS 2024, Part II, volume 14584 of Lecture Notes in Computer Science, Springer, pages 485-506, 2024. pdf
Christina Boura, Nicolas David, Patrick Derbez, Gregor Leander and María Naya-Plasencia. « Differential Meet-In-The-Middle Cryptanalysis ». In CRYPTO 2023, Part III, volume 14083 of Lecture Notes in Computer Science, Springer, pages 240-272, 2023. pdf
Christina Boura, Nicolas David, Rachelle Heim-Boissier and María Naya-Plasencia. « Better Steady than Speedy: Full break of SPEEDY-7-192 ». In EUROCRYPT 2023, Part IV, volume 14007 of Lecture Notes in Computer Science, Springer, pages 36-66, 2023. pdf
Christina Boura, Margot Funk and Yann Rotella. « Differential analysis of the ternary hash function Troika ». In SAC 2022, volume 13742 of Lecture Notes in Computer Science, Springer, pages 96-115, 2022. pdf
Christina Boura, Rachelle Heim-Boissier and Yann Rotella. « Breaking Panther ». In AFRICACRYPT 2022, volume 13503 of Lecture Notes in Computer Science, Springer, pages 176-188, 2022. pdf
Christina Boura, Nicolas Gama, Mariya Georgieva and Dimitar Jetchev. « Simulating Homomorphic Evaluation of Deep Learning Prediction ». In CSCML 2019, volume 11527 of Lecture Notes in Computer Science, Springer, pages 212-230, 2019. pdf
Christina Boura, Ilaria Chillotti, Nicolas Gama, Dimitar Jetchev, Stanislav Peceny and Alexander Petric. « High-Precision Privacy-Preserving Real-Valued Function Evaluation ». In Financial Crypto 2018, volume 10957 of Lecture Notes in Computer Science, Springer, pages 183-202, 2018. pdf
Christina Boura and Anne Canteaut. « Another view of the division property ». In CRYPTO 2016, volume 9814 of Lecture Notes in Computer Science (Part I), Springer, pages 654-682, 2016. pdf, slides, video
Christina Boura, Avik Chakraborti, Gaëtan Leurent, Goutam Paul, Dhiman Saha, Hadi Soleimany and Valentin Suder. « Key Recovery Attack against 2.5-round pi-Cipher ». In Fast Software Encryption-FSE 2016, volume 8783 of Lecture Notes in Computer Science, Springer, pages 535-553, 2016. pdf
Christina Boura, Maria Naya-Plasencia and Valentin Suder. « Scrutinizing and Improving Impossible Differential Attacks: Applications to CLEFIA, Camellia, LBlock and Simon ». In ASIACRYPT 2014, volume 8873 of Lecture Notes in Computer Science, Springer, pages 179-199, 2014. pdf
Andrey Bogdanov, Christina Boura, Vincent Rijmen, Meiqin Wang, Long Wen and Jingyuan Zhao. « Key Difference Invariant Bias in Block Ciphers ». In ASIACRYPT 2013, volume 8269 of Lecture Notes in Computer Science, Springer, pages 357-376, 2013. pdf, slides
Christina Boura and Anne Canteaut. « A new criterion for avoiding the propagation of linear relations through an Sbox. » In Fast Software Encryption-FSE 2013, volume 8424 of Lecture Notes in Computer Science, Springer, pages 585-604, 2013. pdf, slides, video
Christina Boura, Sylvain Lévêque and David Vigilant. « Side-Channel Analysis of Grøstl and Skein ». In the Proceedings of the 2nd International Workshop on Trustworthy Embedded Devices-TrustED 2012, IEEE Symposium on Security and Privacy, pages 6-26, May 2012. pdf
Christina Boura, Anne Canteaut and Christophe De Cannière. « Higher-Order Differential Properties of Keccak and Luffa ». In Fast Software Encryption-FSE 2011, volume 6733 of Lecture Notes in Computer Science, Springer, pages 252-269, 2011. pdf, slides
Christina Boura and Anne Canteaut. « Zero-Sum Distinguishers for Iterated Permutations and Application to Keccak-f and Hamsi-256 ». In Selected Areas in Cryptography-SAC 2010, volume 6544 of Lecture Notes in Computer Science, Springer, pages 1-17 2010. pdf, slides
Christina Boura and Anne Canteaut. « A zero-sum property for the Keccak-f permutation with 18 rounds ». In International Symposium on Information Theory-ISIT 2010, pages 2488-2492, IEEE 2010. pdf, slides

Papers in International Workshops

Christina Boura, Léo Perrin and Shizhu Tian. « Boomerang Uniformity of Popular S-box Constructions. In Proceedings of the Eleventh International Workshop on Coding and Cryptography (WCC) 2019, March 31 – April 5, 2019.
Christina Boura, Anne Canteaut, Jérémy Jean and Valentin Suder. « Two Notions of Differential Equivalence on Sboxes « . In Proceedings of the Tenth International Workshop on Coding and Cryptography (WCC) 2017, September, 18-22, 2017. slides
Christina Boura, Anne Canteaut, Lars R. Knudsen and Gregor Leander. « Reflection ciphers ». In Proceedings of the Ninth International Workshop on Coding and Cryptography (WCC) 2015, Paris, April 13-17, 2015. slides
Vincent Grosso, Christina Boura, Benoît Gérard and François-Xavier Standaert. « A note on the Empirical Evaluation of Security Margins against Algebraic Attacks (with Application to Low Cost Ciphers LED and Piccolo) ». In Proceedings of the 33rd WIC Symposium on Information Theory in the Benelux, pages 52-59, Boekelo, The Netherlands, May 2012. pdf
Christina Boura and Anne Canteaut. « On the Algebraic Degree of some SHA-3 Candidates ». In Proceedings of the Third SHA-3 Candidate Conference, Washington D.C, March 22-23, 2012.
Christina Boura and Anne Canteaut. « On the Algebraic Degree of Iterated Permutations ». Finite Fields and Applications-Fq10, Gent, Belgium, July 2011.

Technical Reports

Christina Boura. « Analyse de fonctions de hachage cryptographiques ». PhD thesis (in French) 2012. pdf, slides.
Christina Boura. « D2.1: Intermediate results on physical analysis of phase 2 candidates ». Technical report for the French National ANR Project SAPHIR2 (Security Analysis of Hash Functions), July 2012. pdf
Christina Boura and Jérémy Jean. « D2.2/D3.1: Final results on cryptanalysis of NIST hash candidates ». Technical report for the French National ANR Project SAPHIR2 (Security Analysis of Hash Functions), November 2012. pdf
Christina Boura, Bart Mennink, Maria Naya Plasencia and Christian Rechberger « D.SYM.11: Final Hash Functions Status Report ». Technical Repport for ECRYPT II, January 2013. pdf

Keynotes at Conferences and Workshops

May 9, 2026. « Cryptanalysis of Neural Networks ». AICRYPT 2026. slides
March 24, 2026. « Cryptanalysis of Neural Networks ». FSE 2026. slides

Invited Talks at Seminars and Workshops

July 7, 2026. « Cryptanalysis of Neural Networks ». Seminar at the Agence Nationale de la Sécurité des Systèmes d’Information (ANSSI), invited presentation.
June 4, 2026. « Cryptanalysis of Neural Networks ». 6th CryptoDay@TelecomParis, Telecom Paris, invited presentation.
May 26, 2026: « Cryptanalysis of Neural Networks ». Seminar of the group ALMASTY, Sorbonne Université, invited presentation.
November 13, 2024: « Alternative key schedules for the AES ». FILOFOCS 2024, IRIF, invited presentation.
March 22, 2024: « Understanding the division property ». Séminaire de géométrie et algèbre effectives, IRMAR, Rennes, invited presentation.
March 12, 2024: « New results in differential cryptanalysis ». Algorithms and Complexity seminar, IRIF, Université Paris Cité, invited presentation.
January 22, 2024. « Differential Meet-In-The-Middle Cryptanalysis ». Dagstuhl Seminar 24041 on Symmetric Cryptography, invited presentation.
December 2, 2023. « The key recovery problem in differential attacks ». Invited talk at the 10th Asian Workshop on Symmetric Key Cryptography – ASK 2023, Guangzhou, China.
November 29, 2023. « The key recovery problem in differential attacks ». Chinese Academy of Sciences (Beijing, China), invited presentation.
October 19, 2023. « New results in differential cryptanalysis ». Journées Codage et Cryptographie (JC2), Najac, invited presentation.
April 14, 2023. « Differential cryptanalysis and variants ». Cryptography seminar of Rennes, invited presentation.
April 29, 2022. « New MILP Modelings for Symmetric-Key Primitives ». SoSySec seminar, Rennes, invited presentation.
May 21, 2021. « Aspects of modern symmetric-key cryptography ». Webinar for the computer science and the maths departments of the University of Thessaly, invited presentation (in Greek).
November 2, 2020. « New MILP Modelings for Symmetric-Key Primitives ». Webinar for the cryptography group of Institute of Information Engineering, Chinese Academy of Sciences, China, invited presentation.
October 22, 2020. « New MILP Modelings for Symmetric-Key Primitives ». Seminar Mathématiques discrètes, codes et cryptographie , Paris 8, invited presentation.
August 6, 2020. « New MILP Modelings for Symmetric-Key Primitives ». Webinar Cryptography, Network Security and Cybersecurity, by the Department of Information Technology, Maulana Abul Kalam Azad University of Technology, West Bengal, India in association with Islamic University of Science and Technology, Jammu and Kashmir, India, invited presentation. slides
December 15, 2017. « Two Notions of Differential Equivalence on Sboxes ». Seminar of the CRYPTO group, LMV, UVSQ, invited presentation. slides
January 16, 2017. « New techniques and improved complexity analysis of impossible differential attacks ». Early Symmetric Crypto (ESC) event, Canach, Luxembourg, invited presentation. slides
November 24, 2015. « The division property: A new attack against block ciphers ». Seminar of the group Algebra and Geometry, LMV, UVSQ, invited presentation. slides
October 1, 2015. « Understanding the division property ». Invited talk at 5th Asian Workshop on Symmetric Key Cryptography – ASK 2015, Singapour. slides
June 12, 2015. « Improving impossible differential cryptanalysis ». National seminar CCA (Codage, Cryptologie, Algorithmes), Paris, France, invited presentation. slides
January 9, 2015. « Algebraic properties of SHA-3 and notable cryptanalysis results ». Invited talk at International Conference on Mathematics and Computing – ICMC 2015, Haldia, India. slides
November 29, 2012. « The new standard for hash functions ». Seminar of the group Combinatoire et Algorithmes, Rennes, invited presentation. slides
January 15, 2012. « New bounds on the algebraic degree of iterated permutations. » Cryptography Seminar of Rennes, invited presentation. slides
November 15, 2011. « Cryptographic Hash Functions ». INRIA’s Junior Seminar. slides
November 10, 2011. « New bounds on the algebraic degree of iterated permutations. » Cryptography Seminar of Caen, invited presentation. slides

Summer Schools

CryptoBG 2018, Oriahovitza, Bulgaria, July 8-15 2018. Block Ciphers and Boolean Functions for Symmetric Cryptography (4.5 hours). slides
École de Printemps en Codage et Cryptographie, La Chapelle Gauthier (Seine et Marne), May 17-20, 2016. Introductory course in Symmetric Cryptography (4.5 hours). slides
IceBreak 2013, Reykjavik, Iceland, June 6-12 2013. One-hour course on the algebraic degree of symmetric primitives. slides
CryptoBG 2013, Oriahovitza, Bulgaria, July 14-21 2013. Introductory course in Symmetric Cryptography (4.5 hours).

Editorship and Steering Committees

Co-editor-in-chief for IACR Transactions on Symmetric Cryptology (ToSC) in 2022/23 and 2023/24.
Member of the steering committee of FSE since 2022.
Member of the editorial board of ToSC (2017-2020) and (2021-2026).
Member of the editorial board of the journal Designs, Codes and Cryptography (DCC) since February 2024.
Member of the board of the Selected Areas in Cryptography (SAC) Conference (2025-2028).

Program Committees

CRYPTO: 2024, 2025, 2026, 2027
EUROCRYPT: 2019, 2021, 2024
ASIACRYPT: 2022
FSE (Fast Symmetric Encryption): 2016, 2017, 2018, 2020, 2022, 2023 (co-program chair), 2024 (co-program chair), 2025, 2026
SAC (Selected Areas in Cryptography): 2014, 2025 (co-program chair), 2026
Workshop on Coding and Cryptography (WCC): 2024 (co-program chair)
Indocrypt: 2014, 2018, 2021, 2022, 2023, 2024, 2025, 2026
Africacrypt: 2027
ISC (Information Security Conference): 2023
Inscrypt (International Conference on Information Security and Cryptology): 2024.
SCN (International Conference on Security and Cryptography for Networks): 2026.
CSCML (International Symposium of Cyber Security Cryptology and Machine Learning): 2020, 2021.
WTSC (International Workshop on Trusted Smart Contracts): 2017, 2018, 2019, 2020, 2021, 2022, 2023.
ICSP (International Conference of Security and Privacy): 2021.
ICMC (International Conference on Mathematics and Computing): 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
MoCrySEn (International Workshop on Modern Cryptography and Security Engineering): 2013
Journées Nationales « Codage et Cryptographie »: 2017, 2020 (program chair)

Habilitation Committees

Sonia Belaïd, « Design and Analysis of Secure Cryptographic Implementations in the Random Probing Model ». The HDR defense took place at Sorbonne Université on February 9, 2026. (I was the president of the jury).

PhD Committees

Sana Boussam, « Design and Analysis of Generative Models for Generic and Interpretable Side-Channel Attacks ». The PhD defence took place at École Polytechnique on June 22, 2026.
Betül Aşkın Özdemir, « Multidimensional Linear Cryptanalysis of Symmetric Key Ciphers ». The private defence took place at KU Leuven on February 20, 2026.
Pierre Varjabedian, « Multivariate and Post-Quantum Cryptography ». The PhD defence took place at UVSQ on February 13, 2026.
Viet-Sang Nguyen, « Physical Attacks against Symmetric Cryptography Standards ». The PhD took place at Université Jean Monnet Saint-Étienne on December 19, 2025. (I was the president of the jury).
Benoit Coqueret, « On the Complementarity of Software and Side-Channel Attacks Against Deep Learning Algorithms ». The PhD took place at Inria Rennes on December 17, 2025.
Irati Manterola Ayala, « Cryptanalysis of STAP Primitives: Efficiency Meets Vulnerability ». The PhD took place at the University of Bergen, Norway on December 5, 2025. (I was a reviewer for this PhD).
Said Eddahmani, « Security Criteria for Vectorial Boolean Functions and Their Applications in Cryptography ». The PhD took place at Université Paris 8, Paris on November 28, 2025. (I was a reviewer for this PhD).
Antoine Houssais, « New White-Box Models for Symmetric Ciphers on Embedded Devices ». The PhD defence took place at the Institut Henri Poincare, Paris on November 22, 2025.
Yanis Belkheyar, « A Race Against Time: How to design and analyze low-latency symmetric cryptographic algorithms ». The PhD defence took place at Radboud University, Nijmegen, The Netherlands on November 11, 2025. (I was a reviewer for this PhD).
Jules Baudrin, « Algebraic properties of symmetric ciphers and of their non-linear components ». The PhD defence took place at Inria, Paris on December 6, 2024.
Debasmita Chakraborty, « Advanced techniques in symmetric key cryptanalysis ». Indian Statistical Institute, Kolkata, 2024. (I was a reviewer for this PhD).
Clara Pernot, « Design and analysis of block ciphers ». The PhD defence took place at Inria, Paris on February 2, 2024.
Pierre-Antoine Tissot, « Protection des dispositifs de chiffrement symétriques contre les injections multiples de fautes ». The PhD defence took place at Université Jean Monnet Saint-Étienne on December 11, 2023. (I was a reviewer for this PhD).
Arthur Gontier, « Cryptanalysis of symmetric ciphers using generic solvers ». The PhD defence took place at Irisa, Rennes on November 10, 2023. (I was a reviewer for this PhD).
Nicolas David, « Improved Techniques in Differential Cryptanalysis ». The PhD defence took place at Inria, Paris on November 8, 2023.
Andrea Caforio, « Green Cryptography and Other Optimisations ». The PhD defence tool place at EPFL, on May 31, 2023. (I was a reviewer for this PhD).
Ali Issa, « Sur l’uniformité différentielle des polynômes sur les corps finis de caractéristique paire ». The PhD defence took place at University of Toulon, on November 17, 2022.
Loïc Rouquette, « Improving scalability and reusability of differential cryptanalysis models using constraint programming ». The PhD defence took place at INSA, Lyon on November 15, 2022.
Andreas Brassen Kidmose, « Analysis of Symmetric Cryptographic Algorithms ». The PhD defence took place at DTU, Copenhagen on June 15, 2022. (I was a reviewer for this PhD).
Victor Mollimard, « Algorithmes pour la cryptanalyse différentielle ». The PhD defence took place at Irisa, Rennes on January 11, 2022.
Daniel Coggia, « Techniques of cryptanalysis for symmetric-key primitives ». The PhD defence took place at Inria, Paris on October 8, 2021. (co-advisor)
Eliane Koussa, « Analyse et conception d’algorithmes de cryptographie post-quantique ». The PhD defence took place at UVSQ on December 18, 2020.
Paul Huynh, « Analyse et Conception d’Algorithmes de Chiffrement Légers ». The PhD defence took place online on November 26, 2020.
Sébastien Duval, « Constructions pour la cryptographie à bas coût ». The PhD defence took place at Inria de Paris on Octobre 3, 2018.
Roberto Civino, « Differential attacks using alternative operations and block cipher design ». The PhD defence took place at University of Trento, Italy, on March 6, 2018. (I was a reviewer for this PhD).
Sukhendu Kuila, « Cryptanalysis of Round-Reduced SHA-3 Standards ». The PhD defence took place at Vidyasagar University, Midnapore, West Bengal, India in May 2016. (I was a reviewer for this PhD).

Selection Committees

2026: Université de Limoges (full professor position)
2026: INSA Toulouse (full professor position)
2026: Université de Versailles – Crypto Group (associate professor position)
2025: Université de Versailles – Crypto Group (associate professor position)
2025: Sorbonne Université (associate professor position)
2025: Université de Versailles – LMV (associate professor position)
2024: Université de Versailles – LMV, Algebra and Geometry (associate professor position)
2023: École des Mines, Nancy (associate professor position)
2022: Université Grenoble Alpes (associate professor position)
2021: Concours Chargés de Recherche (CR) / ISFP, centre Inria Saclay
2017: Université de Rouen (associate professor position)
2017: Université de Limoges (associate professor position)
2015: Université de Limoges (associate professor position)

Teaching (Old)

2013-2024: Cryptographie. Licence 3, Département Informatique de l’Université de Versailles-Saint-Quentin en Yvelines (cours et TDs)
2015-2017 and 2020-2022: Analyse d’algorithmes et programmation. M1 MINT, Département de Mathématiques de l’Université de Versailles-Saint-Quentin en Yvelines, (cours et TDs). Après 2020, j’ai enseigné ce cours avec Yann Rotella.
2019-2024: Algèbre Commutative et Effective. M2 Algèbre Appliquée, Département de Mathématiques de l’Université de Versailles-Saint-Quentin en Yvelines (TDs).
2015-2024: Maths pour l’info. Licence 2 Info/Bio-info, Département Informatique de l’Université de Versailles-Saint-Quentin en Yvelines (cours de TDs).
2020-2021: Fondements de l’informatique (Python). Licence 1, Département Informatique de l’Université de Versailles-Saint-Quentin en Yvelines (cours).
2014-2016: Programmation Orientée Objet (POO) et Java, Licence 2, Département Informatique de l’Université de Versailles-Saint-Quentin en Yvelines (cours et TDs). J’ai enseigné ce cours avec Stéphane Lopes.