Wissam Ghantous

Assistant Professor

Hello! Welcome to my website.

I am a tenure-track Assistant Professor in the department of Mathematics of the University of Central Florida, as well as a member of UCF Cyber Security and Privacy Cluster and the UCF quantum initiative.

Previously, I was a postdoctoral researcher for one year at the École Normale Supérieure (Paris). Before that, I completed my PhD at the University of Oxford in 2023.

My main research interests are post-quantum cryptography and computational number theory.

My email address is: wissam "dot" ghantous "at" ucf.edu

This photo was taken at the Oxford Divinity School

Some useful UCF maths links/info:

Office Hours: Mondays and Wednesdays: 1-2pm.
This year, I'm responsible for the Putnam math competition at UCF. If you're interesting in taking part in this, please reach out. There will be a first practice/info session on Thursday October 9th: 1-2:30pm @ MSB 110.
The UCF Math Algebra Seminar is on Mondays from 2-3pm. Email me if you would like to be added to the mailing list.

Upcoming/past visits, seminars and conferences

In 2026:

January 2026. JMM. Washington D.C., USA.

In 2025:

TBD...
October 2025. Second Applied Algebra Workshop. Florida Atlantic University, Boca Raton, USA.
October 2025. AMS Sectional Meeting. Tulane University, Louisiana, USA.
August 2025. Darmonfest: Arithmetic cycles, Modular forms, and L-functions. Centre de Recherches Mathématiques, Montréal, Canada.
August 2025. Workshop on Isogeny Graphs in Cryptography. BIRS, Banff, Canada.
July 2025. LMFDB, Computation, and Number Theory (LuCaNT). ICERM, RI, USA.
June 2025. First Applied Algebra Workshop. University of South Florida, Tampa, USA.
May 2025. Eurocrypt. Madrid, Spain.
March 2025. Mid-Atlantic Seminar On Numbers VII, University of Maryland, MD, USA.
March 2025.The Legacy of John Tate, and Beyond. Harvard, MA, USA.

In 2024:

October 2024. Québec-Maine Number Theory Conference. Université Laval, Quebec, Canada.
September 2024. Palmetto Number Theory Series , PANTS XXXVIII. Wake Forest University, NC, USA.
September 20th, 2024. Colloquium talk. University of South Florida, Tampa, USA.
September 9th, 2024. Colloquium talk. University fo Central Florida, Orlando, USA.
July 2024. Sixteenth Algorithmic Number Theory Symposium, ANTS-XVI. MIT, USA.
June 2024. Modular Forms, L-functions, and Eigenvarieties. ENS, Paris, France.
May 2024. Eurocrypt. Zurich, Switzerland.
March 2024. Visit to UCF. Orlando, USA.
January 2024. Workshop Quantum meets Classical Cryptography. Sorbonne University, Paris, France.

In 2023:

August 2023. Workshop on Isogeny Graphs in Cryptography. BIRS, Banff, Canada.
February 16th, 2023. Wadham College SCR invited talk. University of Oxford, UK.
February 6th, 2023. Junior Number Theory seminar. University of Warwick, UK.
January 30th, 2023. Junior Number Theory seminar. University of Oxford, UK.
January 9th, 2023. Senior Number Theory seminar. University of Warwick, UK.

In 2022:

October 10-14, 2022. PQCifris 2022. University of Trento, Italy.
September 19th - October 7th, 2022. Visit to McGill University, Montreal. Canada.
September 12-16, 2022. Elliptic curves and modular forms in arithmetic geometry, Celebrating Massimo Bertolini's 60th Birthday. Università degli Studi di Milano, Milan, Italy.
August 28th - September 2nd, 2022. Automorphic Forms Summer School. Erdős Center, Budapest, Hungary.
August 13-19, 2022. Crypto2022 (including MathCrypt). UCSB, Santa Barbara, California, USA .
August 8-12, 2022. Fifteenth Algorithmic Number Theory Symposium, ANTS-XV. University of Bristol, UK.
July 11-15, 2022. ICM sectional workshop on Number Theory and Algebraic Geometry. ETH, Zürich, Switzerland.
May 2022. Research visit to the Università degli Studi di Bari Aldo Moro, Italy.

In 2021:

September 2021. Crittografia e codici (Italian Mathematical Union). Cryptography and Coding Theory, First Annual Conference (virtual event)
August 2021. Workshop on Supersingular Isogeny Graphs in Cryptography (virtual event). BIRS, Banff, Canada.

In 2019:

March 2019. The Montreal-Toronto Workshop in Number Theory - Period maps. McGill, Canada.

*The picture below is the supersingular isogeny graph Λ1873(2, 3) that I generated using SAGE. The prime 1873 is the smallest p such that both supersingular isogeny graphs Λp(2) and Λp(3) have no loops. Read more on this in my first paper.

The picture at the very top of this webpage is the beautiful Swiss landscape that can be seen from the top of the Uetliberg TV-tower (taken during the sectional ICM of 2022).

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