Tweakable Block Ciphers Secure Beyond the Birthday Bound in the Ideal Cipher Model. - ByeongHak Lee; Jooyoung Lee 001 (IACR Cryptol. ePrint Arch., 2018)

Indifferentiability of Truncated Random Permutations. - Wonseok Choi 002; ByeongHak Lee; Jooyoung Lee 001 (ASIACRYPT (1), 2019)

Tight Security Bounds for Double-Block Hash-then-Sum MACs. - Seongkwang Kim; ByeongHak Lee; Jooyoung Lee 001 (EUROCRYPT (1), 2020)

Improved Security Analysis for Nonce-based Enhanced Hash-then-Mask MACs. - Wonseok Choi 002; ByeongHak Lee; Yeongmin Lee; Jooyoung Lee 001 (IACR Cryptol. ePrint Arch., 2020)

FPL: White-Box Secure Block Cipher Using Parallel Table Look-Ups. - Jihoon Kwon; ByeongHak Lee; Jooyoung Lee 001; Dukjae Moon (IACR Cryptol. ePrint Arch., 2020)

Highly Secure Nonce-based MACs from the Sum of Tweakable Block Ciphers. - Wonseok Choi 002; Akiko Inoue; ByeongHak Lee; Jooyoung Lee 001; Eik List; Kazuhiko Minematsu; Yusuke Naito 001 (IACR Trans. Symmetric Cryptol., 2020)

Transciphering Framework for Approximate Homomorphic Encryption. - Jihoon Cho; Jincheol Ha; Seongkwang Kim; ByeongHak Lee; Joohee Lee; Jooyoung Lee 001; Dukjae Moon; Hyojin Yoon (ASIACRYPT (3), 2021)

Toward a Fully Secure Authenticated Encryption Scheme from a Pseudorandom Permutation. - Wonseok Choi 002; ByeongHak Lee; Jooyoung Lee 001; Yeongmin Lee (ASIACRYPT (3), 2021)

Toward a Fully Secure Authenticated Encryption Scheme From a Pseudorandom Permutation (Full Version). - Wonseok Choi 002; ByeongHak Lee; Jooyoung Lee 001; Yeongmin Lee (IACR Cryptol. ePrint Arch., 2021)

CTET+: A Beyond-Birthday-Bound Secure Tweakable Enciphering Scheme Using a Single Pseudorandom Permutation. - Benoît Cogliati; Jordan Ethan; Virginie Lallemand; ByeongHak Lee; Jooyoung Lee 001; Marine Minier (IACR Trans. Symmetric Cryptol., 2021)

Rubato: Noisy Ciphers for Approximate Homomorphic Encryption. - Jincheol Ha; Seongkwang Kim; ByeongHak Lee; Jooyoung Lee 001; Mincheol Son (EUROCRYPT (1), 2022)

Rubato: Noisy Ciphers for Approximate Homomorphic Encryption (Full Version). - Jincheol Ha; Seongkwang Kim; ByeongHak Lee; Jooyoung Lee 001; Mincheol Son (IACR Cryptol. ePrint Arch., 2022)

AIM: Symmetric Primitive for Shorter Signatures with Stronger Security. - Seongkwang Kim; Jincheol Ha; Mincheol Son; ByeongHak Lee; Dukjae Moon; Joohee Lee; Sangyub Lee 002; Jihoon Kwon; Jihoon Cho; Hyojin Yoon; Jooyoung Lee 001 (IACR Cryptol. ePrint Arch., 2022)

XOCB: Beyond-Birthday-Bound Secure Authenticated Encryption Mode with Rate-One Computation. - Zhenzhen Bao; Seongha Hwang; Akiko Inoue; ByeongHak Lee; Jooyoung Lee 001; Kazuhiko Minematsu (EUROCRYPT (4), 2023)

XOCB: Beyond-Birthday-Bound Secure Authenticated Encryption Mode with Rate-One Computation (Full Version). - Zhenzhen Bao; Seongha Hwang; Akiko Inoue; ByeongHak Lee; Jooyoung Lee 001; Kazuhiko Minematsu (IACR Cryptol. ePrint Arch., 2023)

Mitigation on the AIM Cryptanalysis. - Seongkwang Kim; Jincheol Ha; Mincheol Son; ByeongHak Lee (IACR Cryptol. ePrint Arch., 2023)

Revisiting OKVS-based OPRF and PSI: Cryptanalysis and Better Construction. - Kyoohyung Han; Seongkwang Kim; Byeonghak Lee; Yongha Son (IACR Cryptol. ePrint Arch., 2024)

Relaxed Vector Commitment for Shorter Signatures. - Seongkwang Kim; ByeongHak Lee; Mincheol Son (IACR Cryptol. ePrint Arch., 2024)

ZLR: a fast online authenticated encryption scheme achieving full security. - Wonseok Choi 002; Seongha Hwang; ByeongHak Lee; Jooyoung Lee 001 (Des. Codes Cryptogr., 2024)

Making GCM Great Again: Toward Full Security and Longer Nonces. - Woohyuk Chung; Seongha Hwang; Seongkwang Kim; Byeonghak Lee; Jooyoung Lee 001 (IACR Cryptol. ePrint Arch., 2025)

Shorter VOLE-in-the-Head-based Signatures from Vector Semi-Commitment. - Seongkwang Kim; Byeonghak Lee; Mincheol Son (IACR Cryptol. ePrint Arch., 2025)