Multiparty Key Agreement Protocol with Cheater Identification Based on Shamir Secret Sharing. - Kee-Young Yoo; Eun-Kyung Ryu; Jae-Yuel Im (ICCSA (4), 2004)

Security of Tseng-Jan's conference key distribution system. - Eun-Kyung Ryu; Jae-Yuel Im; Kee-Young Yoo (Appl. Math. Comput., 2005)

New conference key agreement protocol with user anonymity. - Woo-Hun Kim; Eun-Kyung Ryu; Jae-Yuel Im; Kee-Young Yoo (Comput. Stand. Interfaces, 2005)