Efficient Anonymous Fingerprinting of Electronic Information with Improved Automatic Identification of Redistributors. - Chanjoo Chung; Seungbok Choi; Youngchul Choi; Dongho Won (ICISC, 2000)

Improvement of Probabilistic Public Key Cryptosystems Using Discrete Logarithm. - Dug-Hwan Choi; Seungbok Choi; Dongho Won (ICISC, 2001)