Does It Need Trusted Third Party? Design of Buyer-Seller Watermarking Protocol without Trusted Third Party. - Jae-Gwi Choi; Kouichi Sakurai; Ji-Hwan Park (ACNS, 2003)

An Approach to Materialize Digital Fingerprinting Based on Proxy Signature Scheme. - Jae-Gwi Choi; Kouichi Sakurai; Ji-Hwan Park (WWW (Posters), 2003)

Unforgeable RFID Variable ID Scheme with Efficient Identification. - Jae-Gwi Choi; Ji-Hwan Park (CCCT (2), 2004)

Analysis of COT-based Fingerprinting Schemes: New Approach to Design Practical and Secure Fingerprinting Scheme. - Jae-Gwi Choi; Ji-Hwan Park; Ki-Ryong Kwon (Information Hiding, 2004)

A Generalization of an Anonymous Buyer-Seller Watermarking Protocol and Its Application to Mobile Communications. - Jae-Gwi Choi; Ji-Hwan Park (IWDW, 2004)