Yi-Fu Lai

Nice to meet you! I am Yi-Fu Lai hailing from Taiwan. Since October 2025, I have been working as a post-doc researcher in Frederik Vercauteren’s lab at KU Leuven. Before that, I was a post-doc researcher in Eike Kiltz's lab within CASA at Ruhr-Universität Bochum. Before that, I pursued my PhD in mathematics at the University of Auckland under the supervision of Steven Galbraith, starting in 2020.

(PhD Thesis: Advanced Isogeny-based Cryptosystems.)

My primary research interest is in constructing cryptosystems that are provably secure from post-quantum assumptions. I am particularly interested in advancing the boundaries of the existing cryptographic paradigms and exploring the limits of cryptographic tools.  In pursuit of this goal, I also enjoy doing cryptographic analysis and reductions to understand the essences of cryptosystems.

Keywords: Post-quantum cryptography, isogeny cryptography, lattice cryptography, code cryptography, public-key cryptosystems; oblivious transfers, ring signatures, group signatures, blind signatures, generic proof systems, zkSNARKs, identification schemes, verifiable random functions.