- Ontario Combinatorics Workshop, University of Ottawa, May 2023, plenary speaker.
- 9th Canadian Discrete and Algorithmic Mathematics Conference (CanaDAM 2023),
Winnipeg, June 2023, invited speaker in the minisymposium on Design Theory and Coding Theory.
- Selected Areas in Cryptography 2023, Fredericton, NB, August 2023, I gave the Stafford Tavares Lecture, which is a one-hour invited talk.
- CRM / UOttawa distinguished colloquium, November 22, 2023.
- I was a co-organizer and speaker in the session on Combinatorial Design Theory at the CMS Winter 2023 Meeting in Montreal, which was held from Dec. 1-4, 2023.
- 55th Southeastern International Conference on Combinatorics, Graph Theory & Computing, Florida Atlantic University, March 2024, plenary speaker.
- CMS Winter Meeting, December 2024, Richmond, BC, invited speaker in the session on
Combinatorial Designs.
- 10th Canadian Discrete and Algorithmic Mathematics Conference (CanaDAM 2025),
Ottawa, May 2025, invited speaker in two minisymposiums: How Many? The Art and Craft of Counting and Combinatorial Designs and Graph Decompositions.
- Selected Areas in Cryptography (SAC 2025) Summer School, Toronto, August 2025, 2¾ hour invited tutorial on post-quantum cryptography.
- CMS Summer Meeting, June 2026, Saint John, NB, invited speaker in the session on Combinatorial Design Theory.
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