Steering committee

  • Cybersecurity and cryptology Master and PhD program, University of Bamenda, Cameroon.

General Chair

Program committee

Reviewing services

Conferences :

  • Eurocrypt 2023, 2024, 2025
  • PKC 2021, 2023,
  • C2SI 2023,
  • PQCrypto 2021,
  • IMACC 2021,
  • Inscrypt 2021,
  • RNTA 5th mini symposium 2019 (“Scriba” editor).

Journals :

  • Journal of Cryptology;
  • Designs, Codes and Cryptography;
  • Mathematical Cryptology.
  • IEEE Access journal;
  • IET Information Security journal;

Short visits

May 22nd - 24th 2023: LFANT, Bordeaux, France.
November 28th - December 02nd 2022: IRMAR, Universite de Rennes I, France.
September 19th-20th 2022: Cybersecurity Research Center, Universite Libre de Bruxelles, Belgium.
July 07th-08th 2022: IBM Research, Zurich, Switzerland.

Research stays

July-October 2021: Research visit at the University of Bamenda, working with Pr. Emmanuel Fouotsa.
August 2020: Research visit at the University of Bamenda, working with Pr. Emmanuel Fouotsa.
March 2020 - July 2020: Research visit at the University of Birmingham’s School of Computer Science, working with Pr. Christophe Petit.
August 2019 - October 2019: Research visit at the University of Bamenda, working with Pr. Emmanuel Fouotsa.

Teaching

27.01.2025 - 15.02.2025: Cryptography course at AIMS Cameroon, Teaching Assistant and Substitute Lecturer.
2024/2025: Post-Quantum Cryptography, Fall 2024, University of Bamenda, online course.
2024/2025: Cryptography and Security, Fall 2024, IC School, EPFL. Substitute Lecturer.
2023/2024: Advanced Cryptography, Spring 2024, IC School, EPFL. Substitute Lecturer.
29.01.2024 - 17.02.2024: Cryptography course at AIMS Cameroon, Teaching Assistant and Substitute Lecturer.
2023/2024: Cryptography and Security, Fall 2023, IC School, EPFL. Substitute Lecturer.
08.2023: Mon premier pas vers la cryptographie, summer school course at Lycée Général Leclerc, Yaoundé Cameroon. 2022/2023: Cryptography and Security, Fall 2022, IC School, EPFL. Substitute Lecturer.
2021/2022: Advanced Cryptography, Spring 2022, IC School, EPFL. Substitute Lecturer.

PhD Student Mentoring

July 2021 - Now: Tchoffo Saah Gustave, PhD student in Isogeny-based Cryptography, University of Yaounde I, Cameroon.

Master thesis supervision

Fall 2023: Max Duparc, EPFL, Updatable Public Key Encryption from Isogenies.
Spring 2023: Vincent gali Ehba, AIMS Cameroon, The Elliptic Curve factorisation Method.

Semester project supervision

Spring 2023: Alessandro Colombo, EPFL. Revisiting the ECM.
Spring 2023: Malo Ranzetti, EPFL. Implementing Countermeasures to SIDH attacks.

Summer interns at EPFL

Summer 2023: Amer Elsheikh, The American University in Cairo, Egypt. An Elliptic Curve Based Symmetric Encryption scheme.
Summer 2023: Mohammadreza Motabar, University of Tehran, Iran. On the Number Field Sieve Factoring Method.

Course tutoring

May 2019 - July 2019: Tutor (remote), Nepal Algebra Project, Tribhuvan University Nepal.
June 2019: Tutor, Summer course on linear Algebra, John Cabot University of Rome.

Selected Talks

Sept 2024: SQIprime, Leuven Isogeny Days 5, KU Leuven, Belgium.
May 2024: Isogeny Problems with Level Structure, Eurocrypt 2024, Zürich, Switzerland.
April 2024: Recovering isogenies from a single torsion point image, and more, ACCESS: Algebraic Coding and Cryptography Seminar Series.
Dec 2023: Isogeny Representations and their Applications to Cryptography, University of Neuchatel, Neuchatel, Switzerland.
Oct 2023: A look at SQISignHD, Leuven Isogeny Days 4, KU Leuven, Belgium.
July 2023: At the evening of the SIDH attacks, SIAM AG 2023, 10-14 July, Eindhoven, The Netherlands.
May 2023: Beyond the SIDH Countermeasures, Séminaire de Cryptographie, LFANT, Bordeaux.
April 2023: M-SIDH and MD-SIDH: countering SIDH attacks by masking information, Eurocrypt 2023, Lyon, France.
December 2022: On the countermeasures to the higher genus torsion point attacks on SIDH, Séminaire de Cryptographie de Rennes, IRMAR, Universite de Rennes. Slides
November 2022: Torsion point images in SIDH: from savior to killer, Isogeny club presentation. Slides
September 2022: Masking SIDH: where do we stand?, Leuven isogeny days, September 21st-23rd 2022. Slides
July 2022: A New Adaptive Attack on SIDH, IBM Zurich. Slides
March 2022: A New Adaptive Attack on SIDH, CT-RSA 2022.
December 2021: SETA: Supersingular Encryption from Torsion points Attack, Asiacrypt 2021 (5 min presentation).
December 2021: SHealS and Heals: isogeny-based PKEs from a key validation method for SIDH, Asiacrypt 2021.
October 2021: A closer look at the torsion points in SIDH, job talk, LASEC, EPFL.
July 2021: SETA: Supersingular Encryption from Torsion points Attack, CRAG-10.
July 2021: SimS: A Simplification of SiGamal, PQCrypto 2021.
June 2021: SimS: A Simplification of SiGamal, Cryptography Seminar, University of Roma Tre.
August 2020: An overview of SIDH, MaC Seminars, Cameroon.
August 2020: An overview of CSIDH, MaC Seminars, Cameroon.
December 2019: An introduction to Isogeny-Based Cryptography, Mathematic PhD seminars, University of Roma Tre.
July 2019: Dirichlet’s Units Theorem, CIMPA School, African Institute for Mathematical Science (AIMS) Limbe.