2025

• Towards QPU-only Quantum Annealing: Optimal Penalty Weights for CQM-to-BQM Conversion (accepted)

ACM Symposium on Applied Computing (SAC) 2026 Poster Session

Junwhan Cho, Minjae Lee, Insung Kim, Dongjae Lee

• Applying Quantum Annealing to Block Cipher Cryptanalysis: An Experimental Study of Searching for Integral Distinguishers (accepted)

ACM Symposium on Applied Computing (SAC) 2026

Insung Kim, Minjae Lee, Taehoon Kang, Gilsang Ahn, Sunyeop Kim, Seokhie Hong, Dongjae Lee

• Activation-Guided Fuzzing for Neural Network Analysis

KIISC International Conference on Mobile Internet Security (MobiSec) 2025 Poster Session

Beomjun Kim, Dongjae Lee

• Key-Recovery Attack on 5-Round AES with Multiple-of-8 Property (accepted)

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences 2025

Hanbeom Shin, Sunyeop Kim, Byoungjin Seok, Dongjae Lee, Deukjo Hong, Jaechul Sung, Seokhie Hong

• SAECHAM: Secure and Efficient Lightweight Block Cipher CHAM Variant

IEEE Internet of Things Journal 2025

Myoungsu Shin, Hanbeom Shin, Insung Kim, Sunyeop Kim, Dongjae Lee, Deukjo Hong, Jaechul Sung, Seokhie Hong 

• Best interleave size of GIFT-128 on 64-bit ARM processor

Journal of Cryptographic Engineering 2025

Myeonghoon Lee, Hanbeom Shin, Myoungsu Shin, Dongjae Lee, Seog Chung Seo, Seokhie Hong 

2024

• Redefining Security in Shadow Cipher for IoT Nodes: New Full-Round Practical Distinguisher and the Infeasibility of Key-Recovery Attacks

IEEE Internet of Things Journal 2024

Sunyeop Kim, Myoungsu Shin, Seonkyu Kim, Hanbeom Shin, Insung Kim, Donggeun Kwon, Dongjae Lee, Seonggyeom Kim, Deukjo Hong, Jaechul Sung, and Seokhie Hong 

• Improved Quantum Rebound Attacks on Double Block Length Hashing with Round-Reduced AES-256 and ARIA-256

IACR Transactions on Symmetric Cryptology 2024 / Fast Software Encryption 2025

Dongjae Lee and Seokhie Hong 

• Accurate False-Positive Probability of Multiset-Based Demirci-Selçuk Meet-in-the-Middle Attacks

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences 2024

Dongjae Lee, Deukjo Hong, Jaechul Sung, and Seokhie Hong 

2023

• A Practical Ciphertext-Only Attack on GMR-2 System

IEEE Access 2023

Dongjae Lee, Jaewoo Kim, Deukjo Hong, Jaechul Sung, and Seokhie Hong 

2021

• Improved Ciphertext-Only Attack on GMR-1

IEEE Access 2021

Dongjae Lee, Deukjo Hong, Jaechul Sung, Seonggyeom Kim, and Seokhie Hong