CRYPTO CAFÉ 

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Past Presentations

September 29, 2026 10:00 am  Science Building (SE-43), room 215

Speaker:  Edoardo Persichetti, Professor in the Department of Mathematics and Statistics, Florida Atlantic University

Title: A Brief Introduction to Code-Based Cryptography                                                             

Abstract:  Code-based cryptography is one of the major players in the post-quantum landscape, providing solutions against attackers equipped with quantum capabilities. “In this talk, I will provide an overview of the history and main features of this area, starting with McEliece’s seminal work and progressing through modern day’s renditions and new cryptographic standards. Everyone welcome!"

Bio: Edoardo Persichetti is Professor in the Department of Mathematics and Statistics at FAU. His work in code-based cryptography spans nearly two decades and has earned him considerable recognition. He is author of many published articles in main cryptographic venues, as well as an upcoming book on the topic; he has served on numerous program committees and editorial boards, and he currently sits on the IACR board of directors. He is author of two cryptographic standards, and his expertise is often sought after in various circumstances.

Video recording

September 15, 2026 10:00 am  Science Building (SE-43), room 215

Speaker:  Hoai Nam Le

Title:  Optimal Bucket Set Construction for Multi-scalar Multiplication with Endomorphisms               

Abstract:  Multi-scalar multiplication (MSM), which computes a linear combination of elliptic-curve points of the form \sum_i a_iP_i, is a major computational bottleneck in many modern cryptographic protocols, particularly in proof systems. In 2023, Luo, Fu, and Gong (LFG) introduced a framework for accelerating MSM using a bucket set together with a multiplier set, allowing a trade-off between storage and online computation. In 2025, Fan, Sica, Kuchta, and Xu (FKSX) applied the LFG framework to efficient endomorphisms, exploiting units that can be applied essentially on the fly. This raises a natural optimization problem: Can we minimize the bucket size while still admitting an efficient Hamiltonian path for bucket accumulation?

In this talk, I will present our construction from a geometric viewpoint over the Eisenstein integers. I will show how this viewpoint leads to an optimal hexagonal bucket set and also allows us to construct an efficient Hamiltonian path for the bucket accumulation step. Moreover, we generalize the construction to larger multiplier sets, providing further time-memory trade-offs when additional storage is available.

This work will be presented at ASIACRYPT 2026 and is joint work with Professor Sica.

Video recording