Won Kim
Hi! I am a Ph.D. student at Korea University, working on Isogeny-based Cryptography.
I am currently researching in PQSnC Lab, under the supervision of Changmin Lee.
In the field of cryptographic and MPC (Multi-Party Computation) protocols, I am also co-supervised by Wonseok Choi.
🎓 Education
- 2025.03 - Now: Ph.D. at Korea University, Cybersecurity
- 2019.03 - 2025.02: B.S. at Korea University, Mathematics
🧠 Research Interests
- Isogeny-based cryptography
- Mathematical aspects of post-quantum cryptography
- Security foundations of cryptographic and MPC protocols
- E-voting protocols
📚 Publications
8. Power Analysis on SQIsign via Ideal Reconstruction with Quaternion Leakages
Won Kim, Jaeho Jeon, JeongHwan Lee, Suseong Lee, Young-Sik Kim, Changmin Lee — Preprint (paper)
7. SoK: A Unified Framework for Coercion Resistance of Electronic Voting Protocols
Wonseok Choi, Won Kim, Changmin Lee — Under Review
6. INKE: Isogeny-Based PKE Using Intermediate Curves
Hyeonhak Kim, Won Kim, Changmin Lee, Suhri Kim, Seokhie Hong, Sangjin Lee — Preprint (paper)
5. SPRITZ: A Short PRISM-Based Threshold Signature via Zero-Knowledge Proof
Hyeonhak Kim, Won Kim, Changmin Lee — Under Review (paper)
4. Compact Quaternion Algorithms for SQIsign
Won Kim, Changmin Lee, Hyunwoo Yoo — Preprint (paper)
3. SMART: Small-Modulus Adaptive Recovery Threshold Decryption for Highly Available HSM
JeongHwan Lee, Won Kim, Changmin Lee — Unpublished Manuscript
2. Asynchronous Lagrange-Based Threshold FHE with Smaller Modulus Overhead
Won Kim, Changmin Lee, JeongHwan Lee, Alain Passelègue, Damien Stehlé — CRYPTO 2026 (paper)
1. SQIsign with Fixed-Precision Integer Arithmetic
Won Kim, Jeonghwan Lee, Hyeonhak Kim, Changmin Lee — PKC 2026, Best Paper Award (paper)
🏆 Awards
6. Special Prize — Korean National Cryptology Contest 2026
5. Best Excellent Prize — Korean National Cryptology Contest 2026
4. Best Paper Award — PKC 2026
3. Encouragement Prize — Cryptanalysis Contest 2025
2. Academic Excellence Award — Korea University 2024 2nd Semester
1. Excellence Prize — Cryptanalysis Contest 2024
📢 Talks
2. LongIdealToIsogeny: Translating Large-Norm Quaternion Ideals into Isogeny Chains — Isogenies of Abelian Varieties workshop
1. SQIsign with Fixed-Precision Integer Arithmetic — PKC 2026 (slides)
🚀 Projects
3. Cryptographic Technologies for Physical AI: A Case Study on Consensus Protocols — Korea University & DGIST, 2026.10 - 2026.12
2. A Study on a Unified Framework for Concrete Security Analysis of Secure Multi-Party Computation — DGIST, 2026.02 - Now
1. Veritas Scholarship Project — Korea University, 2024.06 - 2025.02
🏫 Teaching
- 2026.09 - 2026.12: Modern Cryptography, T.A. at Korea University
- 2026.09 - 2026.12: Mathematics of Smart Security, T.A. at Korea University
- 2025.09 - 2025.12: Modern Cryptography, T.A. at Korea University
- 2025.09 - 2025.12: Mathematics of Smart Security, T.A. at Korea University
🎁 Survices
Organization
- Isogeny Seminar Korea: 2026.08 - Now
Sub-reviewers
- 2026: PKC, ISC
✈️ Attendence
4. Asiacrypt 2026 — Hong Kong, China
3. Isogenies of Abelian Varieties workshop — Lausanne, Switzerland
2. PKC 2026 — Florida, U.S.A.
1. School: Introduction to Isogeny-based Cryptography (TSVP-TP25IC) — Okinawa, Japan