On Mon May 04, 2026

Speaker

Minki Hhan (한민기)


Title

Cryptography in Quantum World


Abstract

Ever since Shor’s quantum algorithm for integer factorization, researchers have warned that quantum computers could pose a serious threat to modern cryptography. Yet much of today’s digital infrastructure still relies on cryptographic systems that would be vulnerable to large-scale quantum attacks. As quantum computing continues to advance, this raises an urgent question: what should we do to prepare?

In this colloquium talk, I will introduce the basic ideas of quantum computing, discuss the current state and future prospects of quantum computers, and explain their implications for cryptography. I will also describe what we can do now, including post-quantum cryptography, and what new possibilities may emerge in the longer-term quantum future in the context of cryptography.


Bio

Minki Hhan is an Assistant Professor in the School of Computing at KAIST. His research focuses on quantum algorithms and (post-)quantum cryptography, with broader interests in theoretical computer science and computational complexity. Before joining KAIST, Dr. Hhan was a Postdoctoral Fellow at UT Austin and a QUC Fellow/Research Fellow at KIAS. He received his PhD and BSc in Mathematics from Seoul National University, and has served on program committees for conferences including Eurocrpy, Asiacrypt, and QCrypt.


Language

English (Offline)