Secure Group Communication with Low Communication Complexity. - Heeyoul Kim; Jaewon Lee; Hyunsoo Yoon; Jung Wan Cho (PDCAT, 2004)

Tamper Resistant Software by Integrity-Based Encryption. - Jaewon Lee; Heeyoul Kim; Hyunsoo Yoon (PDCAT, 2004)

Secure Group Communication with Multiplicative One-way Functions. - Heeyoul Kim; Seong-Min Hong 001; Hyunsoo Yoon; Jung Wan Cho (ITCC (1), 2005)

Digital Rights Management with Right Delegation for Home Networks. - Heeyoul Kim; Younho Lee; Byungchun Chung; Hyunsoo Yoon; Jaewon Lee; KyungIm Jung (ICISC, 2006)

A New Proxy Signature Scheme Providing Self-delegation. - Younho Lee; Heeyoul Kim; Yongsu Park; Hyunsoo Yoon (ICISC, 2006)

Hardware Stack Design: Towards an Effective Defence Against Frame Pointer Overwrite Attacks. - Yongsu Park; Younho Lee; Heeyoul Kim; Gil-Joo Lee; Il-Hee Kim (IWSEC, 2006)

Real-time analysis of intrusion detection alerts via correlation. - Soojin Lee; Byungchun Chung; Heeyoul Kim; Yunho Lee; Chanil Park; Hyunsoo Yoon (Comput. Secur., 2006)

Rogue Public Key Registration Attack and the Importance of 'Proof of Possession' in the PKI Environment. - Younho Lee; Yongsu Park; Heeyoul Kim; Seong-Min Hong 001; Hyunsoo Yoon (IEICE Trans. Inf. Syst., 2006)

Active Trial-and-error Attack on SASC Protocols. - Heeyoul Kim; Younho Lee; Seong-Min Hong 001; Hyunsoo Yoon (Int. J. Netw. Secur., 2006)

Expansion of Sliding Window Method for Finding Shorter Addition/Subtraction-Chains. - Younho Lee; Heeyoul Kim; Seong-Min Hong 001; Hyunsoo Yoon (Int. J. Netw. Secur., 2006)

Weakness of the Synchro-Difference LKH Scheme for Secure Multicast. - Heeyoul Kim; Byungchun Chung; Younho Lee; Yongsu Park; Hyunsoo Yoon (IEEE Commun. Lett., 2007)

Reactive Key Management Scheme for Access Control in Group Communications. - Heeyoul Kim; Younho Lee; Yongsu Park; Hyunsoo Yoon (IEICE Trans. Commun., 2007)

A New Binary Image Authentication Scheme with Small Distortion and Low False Negative Rates. - Younho Lee; Junbeom Hur; Heeyoul Kim; Yongsu Park; Hyunsoo Yoon (IEICE Trans. Commun., 2007)

Parallelized Scalar Multiplication on Elliptic Curves Defined over Optimal Extension Field. - Jaewon Lee; Heeyoul Kim; Younho Lee; Seong-Min Hong 001; Hyunsoo Yoon (Int. J. Netw. Secur., 2007)

A practical approach of ID-based cryptosystem in ad hoc networks. - Heeyoul Kim; Jumin Song; Hyunsoo Yoon (Wirel. Commun. Mob. Comput., 2007)

An attribute aggregation architecture with trust-based evaluation for access control. - Jaewon Lee; Heeyoul Kim; Joon Sung Hong (NOMS, 2008)

An efficient delegation protocol with delegation traceability in the X.509 proxy certificate environment for computational grids. - Younho Lee; Heeyoul Kim; Yongsu Park; Hyunsoo Yoon (Inf. Sci., 2008)

Improved batch exponentiation. - Byungchun Chung; Junbeom Hur; Heeyoul Kim; Seong-Min Hong 001; Hyunsoo Yoon (Inf. Process. Lett., 2009)

A new data hiding scheme for binary image authentication with small image distortion. - Younho Lee; Heeyoul Kim; Yongsu Park (Inf. Sci., 2009)

A robust and flexible digital rights management system for home networks. - Heeyoul Kim; Younho Lee; Yongsu Park (J. Syst. Softw., 2010)

Sensor Node Localization by Three Mobile Anchors in the Wireless Sensor Networks. - Seunghak Lee; Namgi Kim; Heeyoul Kim; Younho Lee; Hyunsoo Yoon (IEICE Trans. Inf. Syst., 2011)

Secure Group Communication with Dynamic Membership Change in Ad Hoc Networks. - Heeyoul Kim (KSII Trans. Internet Inf. Syst., 2011)

A New Group Key Rekeying with Homomorphic Encryption. - Heeyoul Kim (FGIT-FGCN/DCA, 2012)

Efficient machine learning over encrypted data with non-interactive communication. - Heejin Park; Pyung Kim; Heeyoul Kim; Ki-Woong Park; Younho Lee (Comput. Stand. Interfaces, 2018)

Estimating Resident Registration Numbers of Individuals in Korea: Revisited. - Heeyoul Kim; Ki-Woong Park; Daeseon Choi; Younho Lee (KSII Trans. Internet Inf. Syst., 2018)

A Survey of the Transmission-Power-Control Schemes in Wireless Body-Sensor Networks. - Woosik Lee 001; Heeyoul Kim; Min Hong; Min-Goo Kang; Seung Ryul Jeong; Namgi Kim (KSII Trans. Internet Inf. Syst., 2018)

Analysis of Bitcoin Exchange Using Relationship of Transactions and Addresses. - Seongho Hong; Heeyoul Kim (ICACT, 2019)

Blockchain-based secure firmware management system in IoT environment. - Minsung Son; Heeyoul Kim (ICACT, 2019)

A Probabilistic Test based Detection Scheme against Automated Attacks on Android In-app Billing Service. - Heeyoul Kim (KSII Trans. Internet Inf. Syst., 2019)

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)

Analysis of Olympus DAO: a popular DeFi model. - Ahyun Song; Euiseong Seo; Heeyoul Kim (ICACT, 2023)

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)

Anomaly VAE-Transformer: A Deep Learning Approach for Anomaly Detection in Decentralized Finance. - Ahyun Song; Euiseong Seo; Heeyoul Kim (IEEE Access, 2023)

Novel Design of Blockchain based IIoT Framework for Smart Factory. - Ahyun Song; Euiseong Seo; Heeyoul Kim (ICACT, 2024)

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

BC-SBOM: Blockchain-based SBOM Management System. - Ahyun Song; Euiseong Seo; Heeyoul Kim (ICACT, 2025)