معرفی
Kwangsu Lee is an Associate Professor in the Department of Computer and Information Security at Sejong University, specializing in cryptography and computer security. With a research career spanning over two decades, he has established himself as a prominent figure in cryptographic protocols, particularly in identity-based encryption, functional encryption, and digital signatures.
His educational background includes a B.S. from Yonsei University (1998), an M.S. from KAIST (2000), and a Ph.D. from Korea University (completed around 2010-2011). Prior to his current position, he served as a Postdoctoral Researcher at Columbia University (2012) and as an Assistant Professor at Korea University (2014-2016).
Professor Lee's research interests focus on cryptographic protocols with emphasis on revocable encryption systems, functional encryption, and secure multi-party computation. His work has significantly advanced the field of identity-based encryption, particularly through his studies on revocable storage systems with access control on ciphertexts, revocable identity-based encryption via subset-difference methods, and functional encryption for inner products that can compute on different ciphertexts. His research addresses critical challenges in key management, access control, and efficiency in cryptographic systems.
His publication record shows consistent output with 47 research publications since 2003, with recent work focusing on threshold cryptography, multi-signatures, and decentralized functional encryption. His articles demonstrate a clear progression toward more practical cryptographic solutions with improved efficiency while maintaining strong security guarantees. The research spans theoretical foundations to practical implementations, with applications in cloud security, blockchain, and secure data sharing.
Professor Lee actively participates in the cryptographic research community, having presented at major conferences including ASIACRYPT, ICISC, and ACNS. He has maintained a strong research trajectory with increasing publication output over the years, particularly in high-impact journals like IEEE Transactions on Information Forensics and Security, Designs, Codes and Cryptography, and IEEE Access.
His research has practical implications for secure cloud computing, privacy-preserving systems, and cryptographic infrastructure for modern applications requiring fine-grained access control and efficient key management.
