A Proposal of a New Public Key Cryptosystem Using Matrices over a Ring. - Heajoung Yoo; Seokhie Hong; Sangjin Lee 002; Jong In Lim 001; Okyeon Yi; Maenghee Sung (ACISP, 2000)

Pseudorandomness of MISTY-Type Transformations and the Block Cipher KASUMI. - Ju-Sung Kang; Okyeon Yi; Dowon Hong; Hyun Sook Cho (ACISP, 2001)

Known-IV Attacks on Triple Modes of Operation of Block Ciphers. - Deukjo Hong; Jaechul Sung; Seokhie Hong; Wonil Lee; Sangjin Lee 002; Jongin Lim 001; Okyeon Yi (ASIACRYPT, 2001)

Provable Security of KASUMI and 3GPP Encryption Mode f8. - Ju-Sung Kang; Sang-Uk Shin; Dowon Hong; Okyeon Yi (ASIACRYPT, 2001)

Concrete Security Analysis of CTR-OFB and CTR-CFB Modes of Operation. - Jaechul Sung; Sangjin Lee 002; Jong In Lim 001; Wonil Lee; Okyeon Yi (ICISC, 2001)

Privacy-Enhancing Fingerprint Authentication Using Cancelable Templates with Passwords. - Daesung Moon; Sungju Lee; Seunghwan Jung; Yongwha Chung; Okyeon Yi; Namil Lee; Kiyoung Moon (WISA, 2006)

Known-IV, Known-in-Advance-IV, and Replayed-and-Known-IV Attacks on Multiple Modes of Operation of Block Ciphers. - Deukjo Hong; Seokhie Hong; Wonil Lee; Sangjin Lee 002; Jongin Lim 001; Jaechul Sung; Okyeon Yi (J. Cryptol., 2006)

A Fast and Efficient Authentication Protocol for a Seamless Handover between a WLAN and WiBro. - Sun-Hee Lim; Okyeon Yi; Chang-Hoon Jung; Ki-Seok Bang (COMSWARE, 2007)

Fingerprint Template Protection Using Fuzzy Vault. - Daesung Moon; Sungju Lee; Seunghwan Jung; Yongwha Chung; Miae Park; Okyeon Yi (ICCSA (3), 2007)

A Secure Handover Protocol Design in Wireless Networks with Formal Verification. - Sun-Hee Lim; Ki-Seok Bang; Okyeon Yi; Jongin Lim 001 (WWIC, 2007)

Formalizing the design, evaluation, and analysis of quality of protection in wireless networks. - Sun-Hee Lim; Seunghwan Yun; Jongin Lim 001; Okyeon Yi (J. Commun. Networks, 2009)

On Distinguished Points Method to Implement a Parallel Collision Search Attack on ECDLP. - Ju-Sung Kang; Okyeon Yi (FGIT-SecTech/DRBC, 2010)

Methods for practical whitebox cryptography. - Jong-Yeon Park; Ji-Sun Choi; Okyeon Yi (ICTC, 2010)

Ghost key patterns with Equidistant Chosen Message attack on RSA-CRT. - Jong-Yeon Park; Okyeon Yi; Dong-Guk Han; Dooho Choi (ICCST, 2011)

Security in Underwater Acoustic Sensor Network: Focus on Suitable Encryption Mechanisms. - Ji-Eon Kim; Nam-Yeol Yun; Sardorbek Muminov; Soo-Hyun Park; Ok Yeon Yi (AsiaSim (2), 2012)

Practical Multi-party Versions of Private Set Intersection Protocols with Hardware Tokens. - Ju-Sung Kang; Okyeon Yi; Min-Ku Kim; Ku-Young Chang (FGIT-FGCN/DCA, 2012)

CPA performance enhancement based on spectrogram. - Min-Ku Kim; Dong-Guk Han; Jeong Choon Ryoo; Okyeon Yi (ICCST, 2012)

A Security Analysis of Key Expansion Functions Using Pseudorandom Permutations. - Ju-Sung Kang; Nayoung Kim; Wangho Ju; Okyeon Yi (WISTP, 2014)

An Energy efficient CCM-UW security mechanism for Underwater Acoustic Networks. - Mukhridinkhon Ibragimov; Jae-Hoon Lee; Muppalla Kalyani; Jung-Il Namgung; Soo-Hyun Park; Ok Yeon Yi; Changhwa Kim (WUWNet, 2014)

An improved side channel attack using event information of subtraction. - Jong-Yeon Park; Dong-Guk Han; Okyeon Yi; Jeong-Nyeo Kim (J. Netw. Comput. Appl., 2014)

Ticket-based authentication protocol for Underwater Wireless Sensor Network. - Chae-Won Yun; Jae-Hoon Lee; Okyeon Yi; Soo-Hyun Park (ICUFN, 2016)

CCM-UW Security Modes for Low-band Underwater Acoustic Sensor Networks. - Mukhridinkhon Ibragimov; Jae-Hoon Lee; Muppalla Kalyani; Jung-Il Namgung; Soo-Hyun Park; Okyeon Yi; Changhwa Kim; Yong-Kon Lim (Wirel. Pers. Commun., 2016)

Key Managements of Underwater Acoustic Communication Environments. - Hyunki Kim; Jae-Hoon Lee; Okyeon Yi (WISA, 2017)

Analysis of the Noise Source Entropy Used in OpenSSL's Random Number Generation Mechanism. - Hyunki Kim; Jinhyeok Oh; Changuk Jang; Okyeon Yi; Juhong Han; Hansaem Wi; Chanil Park (ICTC, 2019)

Cryptanalysis of hash functions based on blockciphers suitable for IoT service platform security. - Hangi Kim; Do-Won Kim; Okyeon Yi; Jongsung Kim (Multim. Tools Appl., 2019)

A methodology for the decryption of encrypted smartphone backup data on android platform: A case study on the latest samsung smartphone backup system. - Myungseo Park; Okyeon Yi; Jongsung Kim (Digit. Investig., 2020)

Analysis of Radioactive Decay Based Entropy Generator in the IoT Environments. - Taewan Kim; Seyoon Lee; Seunghwan Yun; Jongbum Kim; Okyeon Yi (WISA, 2022)

A study on data acquisition based on the Huawei smartphone backup protocol. - Myungseo Park; Sehoon Lee; Okyeon Yi; Jongsung Kim (Digit. Investig., 2022)

Rider Optimization With Deep Learning Based Image Encryption for Secure Drone Communication. - N. Kannaiya Raja; E. Laxmi Lydia; Thumpala Archana Acharya; K. Radhika; Eunmok Yang; Okyeon Yi (IEEE Access, 2023)

AI-Driven Defense Mechanism for Lattice-Based Post-Quantum Cryptography: Adaptive Mitigation Against Side-Channel Attacks. - Wibby Aldryani Astuti Praditasari; Hyungyeop Kim; Hyejin Yoon; Danang Rimbawa; Okyeon Yi (AsiaJCIS, 2025)