PQCrypto 2025
Shifting our knowledge of MQ-Sign security, at the 16th International Conference on Post-Quantum Cryptography [slides][slides (handout)][video]
8 April 2025 Taipei, Taiwan

Mathematics of PQC at MPIM  
Algebraic cryptanalysis applied to equivalence problems, at the Conference on "The Mathematics of Post-Quantum Cryptography" [event][slides]
4 December 2024 Bonn, Germany

ACCESS seminar  
Algebraic and Combinatorial Algorithms for Equivalence Problems, at the Algebraic Coding and Cryptography Seminar Series [webpage][slides]
1 October 2024 online

DISTANT Training School  
Hard problems in post-quantum cryptography, at the DISTANT Training School affiliated with Summer school on RWC and privacy in Croatia 2024 [event][slides]
2 June 2024 Vodice, Croatia

Security in Times of Surveillance  
An overview of post-quantum cryptography, at the event Security in Times of Surveillance 2024 [event][slides][video]
31 May 2024 Eindhoven, The Netherlands

CrypTOgraphy days 2024  
Algebraic and Combinatorial Algorithms for Equivalence Problems, at the CrypTOgraphy days 2024 [event][slides]
17 May 2024 Turin, Italy

MWCC 2024  
Algebraic and Combinatorial Algorithms for Equivalence Problems, at the Munich Workshop on Coding and Cryptography 2024 [event][slides]
09 April 2024 Munich, Germany

PQC Spring School 2024  
Multivariate cryptography [event][resources][video]
15 March 2024 Porto, Portugal

IMB Seminar  
Disorientation faults in CSIDH, at Séminaire de Théorie Algorithmique des Nombres [slides][webpage]
28 November 2023 Institut de Mathématiques de Bordeaux, Bordeaux, France

Women in science  
Design and cryptanalysis of post-quantum digital signature schemes, at Ciclo de conferencias de la Mujer en la Ciencia [slides][event]
30 August 2023 online (Universidad Anáhuac Mexico)

Africacrypt 2023
Take your MEDS: Digital Signatures from Matrix Code Equivalence, at the 14th International Conference on Cryptology AFRICACRYPT 2023 [slides]
20 July 2023 Sousse, Tunisia

SIAM-AG 2023  
Setting the Stage: Isogeny-Based Cryptography, at the SIAM Conference on Applied Algebraic Geometry (AG23) [slides]
13 July 2023 Eindhoven, The Netherlands

CBCrypto 2023
Algebraic Attack on the Alternating Trilinear Form Equivalence Problem, at the 4th International Workshop on Code-Based Cryptography [slides]
22 April 2023 Lyon, France

CWG meetings  
Disorientation faults in CSIDH, at Crypto Working Group meetings [slides]
17 March 2023 Utrecht, The Netherlands

MIS Seminar  
The Matrix Code Equivalence Problem and Applications, at Séminaire de Laboratoire MIS [slides]
24 November 2022 Amiens, France

CSNG 2022  
Digital Signatures from the Matrix-code Equivalence problem, at the 8th Annual Cyber Security Next Generation Workshop [slides]
13 October 2022 Delft, The Netherlands

CrossFyre 2022
Disorientation faults in CSIDH, at the 11th International Workshop on Cryptography, Robustness, and Provably Secure Schemes for Female Young Researchers [slides]
6 October 2022 Passau, Germany

Virtual Summer School
The Matrix Code Equivalence Problem and Applications, at the Contemporary algebraic and geometric techniques in coding theory and cryptography [abstract][slides]
21 July 2022 online (Università degli Studi della Campania Luigi Vanvitelli)

CrossFyre 2021
A Simple Deterministic Algorithm for Systems of Quadratic Polynomials over $\mathbb{F}_2$, at the 10th International Workshop on Cryptography, Robustness, and Provably Secure Schemes for Female Young Researchers [slides]
2 December 2021 online

CHES 2021
Time-Memory Analysis for Parallel Collision Search Algorithms, at the annual Conference on Cryptographic Hardware and Embedded Systems [slides][pre-recording][live session]
13 September 2021 online

SAT 2021
Logical cryptanalysis with WDSat, at the 24th International Conference on Theory and Applications of Satisfiability Testing [slides]
7 July 2021 online (Barcelona, Spain)

AGC²T
A SAT-based approach for index calculus on binary elliptic curves, at the Arithmetic, Geometry, Cryptography and Coding Theory Conference [slides][video]
1 June 2021 online (CIRM, Marseille Luminy, France)

Caramba Seminar  
Cryptanalyse logique du problème du logarithme discret sur courbes elliptiques, at Séminaire de l'équipe Caramba (Inria Nancy) [slides]
12 March 2021 online (INRIA Nancy)

ATI Seminar  
Calcul d'index pour des courbes elliptiques définies sur des extensions de corps finis, at Séminaire Arithmétique et Théorie de l’Information [slides]
18 February 2021 online (Université Aix-Maseille)

CP 2020
Parity (XOR) Reasoning for the Index Calculus Attack, at the 26th International Conference on Principles and Practice of Constraint Programming [slides][video]
9 September 2020 online (Louvain-la-Neuve, Belgium)

IMACC 2019
A SAT-based approach for index calculus on binary elliptic curves, at the 17th IMA International Conference on Cryptography and Coding [slides]
17 December 2019 St Anne’s College, University of Oxford, Oxford, UK

MSR Seminar  
A SAT-based approach for index calculus on binary elliptic curves, at a seminar at the Microsoft Reasearch Lab [slides]
5 December 2019 Microsoft Research, Redmond, Washington, USA

Private AI Bootcamp
HappyKidz: Privacy Preserving Phone Usage Tracking, at Private AI Bootcamp Competition 2019 [video]
4 December 2019 Microsoft, Redmond, Washington, USA

JJCMIS 2019  
Analyse de la difficulté des Cryptosystèmes à l’Aide du Problème du Transversal Minimum, at Journée des Jeunes Chercheurs du MIS 2019 [slides]
5 July 2019 Amiens, France

GT BAC  
A SAT-based approach for index calculus on binary elliptic curves, at Groupe de Travail "Butte aux Cailles" [slides]
16 May 2019 l'ENST (Télécom ParisTech), Paris, France

JC2 2018
Time-Memory Trade-offs for Parallel Collision Search Algorithms, at Journées Codage & Cryptographie 2018 [slides]
11 October 2018 Centre Paul-Langevin – CAES du CNRS, Aussois, France

JJCMIS 2018
Cryptanalyse logique du problème du logarithme discret, at Journée des Jeunes Chercheurs du MIS 2018 [slides]
29 May 2018 Amiens, France

JRES 2017
A propos d'un schéma d'authentification OTP, at Journées Réseaux de l’Enseignement et de la Recherche 2017 [video]
15 November 2017 Nantes, France

JJCMIS 2017
Protocole d’authentification CrypTonAuth, at Journée des Jeunes Chercheurs du MIS 2017 [slides]
30 May 2017 Amiens, France

Other outreach materials

Alice & Eve 2021 Poster [event]

Diffie-Hellman key exchange with colors
Presented at a lab visit for students who have participated in the Alkindi cryptography competition.

Time-Memory Trade-offs for PCS Algorithms - poster in French

Le protocole d’authentification CrypTonAuth
Newsletter of MIS Laboratory, September 2017

MCE
Implementations of algorithms for solving the Matrix Code Equivalence problem (MCE).
[github]

WDSat
A SAT solver dedicated to solving instances derived from a Weil descent.
[github]

PCS - Published as TCHES 2021 Artifact
Implementation of a Parallel Collision Search algorithm for solving the ECDLP.
[github]

Weil descent
A Weil descent implementation for binary elliptic curves over prime-degree extension fields.
[github]

CrypTonAuth
A C library for implementing the CrypTonAuth authentication method, prepared for ANSSI standardisation.
[proprietary]

CrypTonID
A C library for implementing the CrypTonID technology, prepared for ANSSI standardisation.
[proprietary]

 Eindhoven University of Technology:

Applied Number Theory and Algebra
Second year Bachelor's course.
2024/2025

Cryptology - guest lecture
Master's course at Radboud University [Isogeny-based cryptography].
2024/2025

Professional portfolio: modeling week
Master's course.
2024/2025

Selected Areas in Cryptology
MasterMath course [course page].
2023/2024

Cryptology - guest lecture
Master's course at Radboud University [Cryptanalysis in elliptic curve cryptography].
2023/2024

 Radboud University:

Cryptology
Master's course - guest lecture [Cryptanalysis in elliptic curve cryptography], tutorials and assignments.
2022/2023

 University of Picardie Jules Verne

Object-oriented programming 2 and Reactive programming
Third year - lectures, tutorials and lab work (cours, TD, TP).
2018/2019, 2019/2020

Advanced algorithms
Second year - tutorials and lab work (TD, TP).
2020/2021

C programming
Second year - lab work (TP).
2018/2019, 2019/2020

Elements of formal logic and mathematical reasoning
First year - tutorials (TD).
2020/2021

Algorithms and programming
First year - tutorials and lab work (TD, TP).
2020/2021

Propositional logic
First year - tutorials and lab work (TD, TP).
2017/2018

Introduction to databases
First year - tutorials and lab work (TD, TP).
2020/2021

Introduction to programming
First year - tutorials and lab work (TD, TP).
2018/2019, 2019/2020, 2020/2021

Internet and web
First year - tutorials and lab work (TD, TP).
2020/2021

• Sebastiano Boscardin
  since Oct 2024, co-supervised with Tanja Lange

Master's Students

• Jelle Sipkes (Capita selecta)
  Algorithms for Information Set Decoding
  completed June 2024
• Ambroise Fleury
  Parallel collision search in the multi-user setting
  completed July 2020, co-supervised with Sorina Ionica

Bachelor's Students

• Jimena Botella Baena
  A Comparative Analysis of the Unbalanced Oil and Vinegar Signature Scheme and its Variants [thesis]
  completed July 2024, co-supervised with Jolijn Cottaar
• Lavika Singhal
  Map your Neighborhood: Assessing an algorithm for solving the Isomorphism of Polynomials problem [thesis]
  completed January 2024, co-supervised with Simona Samardjiska
• Florian Saby
  Developing and OTP authentication application
  completed July 2017, co-supervised with Gilles Dequen