Adversarial Attack Based on Perturbation of Contour Region to Evade Steganalysis-Based Detection. - Hyunsik Na; Gwonsang Ryu; Daeseon Choi (IEEE Access, 2021)

Adversarial attacks by attaching noise markers on the face against deep face recognition. - Gwonsang Ryu; Hosung Park; Daeseon Choi (J. Inf. Secur. Appl., 2021)

Feature-Based Adversarial Training for Deep Learning Models Resistant to Transferable Adversarial Examples. - Gwonsang Ryu; Daeseon Choi (IEICE Trans. Inf. Syst., 2022)

A hybrid adversarial training for deep learning model and denoising network resistant to adversarial examples. - Gwonsang Ryu; Daeseon Choi (Appl. Intell., 2023)

Session Replication Attack Through QR Code Sniffing in Passkey CTAP Registration. - Donghyun Kim; Seungmin Kim; Gwonsang Ryu; Daeseon Choi (SEC, 2024)

Detection of adversarial attacks based on differences in image entropy. - Gwonsang Ryu; Daeseon Choi (Int. J. Inf. Sec., 2024)

HiPass: Hijacking CTAP in Passkey Authentication. - Donghyun Kim; Junseok Shin; Gwonsang Ryu; Daeseon Choi (IEEE Access, 2025)

Detecting Adversarial Examples Using Cross-Modal Semantic Embeddings From Images and Text. - Sohee Park; Gwonsang Ryu; Daeseon Choi (IEEE Access, 2025)