Hyeonbum Lee
About
I am a cryptography researcher at Seoul National University, where I am a postdoctoral researcher in the Cryptography & Privacy Lab under Professor Yongsoo Song. I received my Ph.D. in applied mathematics from Hanyang University, where I was a member of the Cryptology & Algorithm Lab advised by Professor Jae Hong Seo.
My research focuses on constructing secure cryptographic algorithms and studying their real-world applications — zero-knowledge proofs, proof systems, inner product arguments, and homomorphic encryption. See Publications for the full list.
News
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(Jun 2026) Selected for the AI Seoul Tech Research Fellowship (Seoul Future Foundation).
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(Jan 2026) One paper accepted at IEEE Access.
Cougar: Cubic Root Verifier Inner Product Argument under Discrete Logarithm Assumption
Hyeonbum Lee, Seunghun Paik, Hyunjung Son, and Jae Hong Seo. -
(Sep 2025) I joined the Cryptography & Privacy Lab at Seoul National University as a postdoctoral researcher under Professor Yongsoo Song.
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(Aug 2025) I completed my Ph.D. program. My sincere thanks to my advisor, Professor Jae Hong Seo, and the members of the Cryptology & Algorithm Lab.
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(Jul 2025) One paper accepted at ACM CCS 2025.
Practical Zero-Knowledge PIOP for Maliciously Secure Multiparty Homomorphic Encryption
Intak Hwang, Hyeonbum Lee, Jinyeong Seo, and Yongsoo Song. -
(Jun 2025) One paper accepted at ESORICS 2025.
UTRA: Universal Token Reusability Attack and Token Unforgeable Delegatable Order-Revealing Encryption
Jaehwan Park, Hyeonbum Lee, Junbeom Hur, Jae Hong Seo, and Doowon Kim.
Contact
Institutional(SNU): hyeonbumlee@snu.ac.kr
Personal: leehb3706@gmail.com.