Olivier Pereira is a professor of cryptography at UCLouvain in Belgium. His research explores cryptographic protocols, including their design and analysis, with a focus on problems that bring democratic and societal benefits. He is a joint leader of the Crypto Group within the ICTEAM institute.
He obtained his PhD from UCLouvain in 2003 and held visiting researcher and teaching positions at MIT (USA), NTT (Japan), ENS Paris-Saclay (France), Université catholique de Bukavu (DRC), the University of Melbourne (Australia), Rice University (USA) as a Fulbright Scholar, and Microsoft Research (USA).
Since 2020, he presides the doctoral committees in Engineering sciences and technology, Architecture and urban planning (CDI) at UCLouvain. For CDI-related academic matters, please contact him at president-cdi@uclouvain.be.
PhD Cryptography
UCLouvain
MRes Mathematics
UCLouvain
MS Electrical Engineering
UCLouvain
My research is primarily disseminated through publications, which are collected on the following websites and can be accessed from there.
I teach at the Louvain School of Engineering and at the School of Mathematics.
A list of the courses I am currently teaching at UCLouvain can be accessed here.
I am contributing to projects, expert reports and event organization within my area of expertise. Some of these projects, reports and events are listed here.
WAVES, the first Workshop on Auditing and Verification for Election Security, was affiliated with Asiacrypt 2025. Meeting notes can be found on GitLab.
ElectionGuard is an open source SDK designed for election software designers to incorporate end-to-end verifiability in their systems. The ElectionGuard specification describes the cryptographic design. A high level presentation of the 2024 status of the project can be found here, joint work with Josh Benaloh, Michael Naehrig and Dan Wallach.
SIMPLE-Crypto is a non-profit organization created in 2022 in order to develop open source cryptographic implementations and to maintain them over time. I was a founding member and keep contributing as a board member.
A 2024 study supported by the Council of Europe on alternative forms of voting in post-war elections in Ukraine. The main authors are Ardita Driza Maurer, Véronique Cortier, Oksana Kulyk, Armin Rabitsch and Volodymyr Venher.
A 2024 study (available in French) commissioned by the Belgian ministry of interior on the evolution of the use of ballot marking devices in the Belgian elections, in collaboration with Cyprien Delpech de Saint Guilhem and Bart Preneel.
A 2021 study commissioned by the Belgian ministry of interior (available in French and in Dutch) on the possibility of introducing Internet voting in Belgium. A high-level presentation (in English) of our technical recommendations can be found in these slides from an E-Vote-ID 2022 invited keynote address. This was a collaboration with Jean-Benoit Pilet, Bart Preneel, Silvia Erzeel, Fanny Sbaraglia, Aurélie Tibbaut, Xavier Carpent and Régis Dandoy.
A 2019 non-technical article that discusses challenges related to fraud detection in Internet voting and highlights some critical weaknesses that we identified in real-world voting systems, in collaboration with Chris Culnane, Aleksander Essex, Sarah Jamie Lewis and Vanessa Teague.