Cryptanalysis of a Multi-Server Password Authenticated Key Agreement Scheme Using Smart Cards. - Wei-Chi Ku; Hsiu-Mei Chuang; Min-Hung Chiang (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

Vulnerabilities of Wu-Chieu's Improved Password Authentication Scheme Using Smart Cards. - Wei-Chi Ku; Hsiu-Mei Chuang; Maw-Jinn Tsaur (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)