Weakness and Simple Improvement of a Password Authentication Scheme Based on Geometric Approach. - Wei-Chi Ku; Shen-Tien Chang; Hsi-Hung Chen; Maw-Jinn Tsaur (LCN, 2005)

A Remote User Authentication Scheme Using Strong Graphical Passwords. - Wei-Chi Ku; Maw-Jinn Tsaur (LCN, 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)

An Improved Password-Based Authenticated Key Agreement Scheme for Pervasive Applications. - Maw-Jinn Tsaur; Wei-Chi Ku; Hao-Rung Chung (EUC (2), 2008)

Weaknesses and improvement of Wang et al.'s remote user password authentication scheme for resource-limited environments. - Hao-Rung Chung; Wei-Chi Ku; Maw-Jinn Tsaur (Comput. Stand. Interfaces, 2009)