Hybrid Blockchain-based Unification ID in Smart Environment. - Nakhoon Choi; Heeyoul Kim (ICACT, 2020)

Blockchain based Removable Storage Device Log Management System. - Gyuseong Lee; Minsung Son; Nakhoon Choi; Seongho Hong; Heeyoul Kim (ICACT, 2020)

Surveillance System for Real-Time High-Precision Recognition of Criminal Faces From Wild Videos. - Hyun-Bin Kim; Nakhoon Choi; Hye-Jeong Kwon; Heeyoul Kim (IEEE Access, 2023)

Decentralized commit-reveal scheme to defend against front-running attacks on Decentralized EXchanges. - Nakhoon Choi; Heeyoul Kim (ICBC, 2024)