Yuseung Sohn Misung Cho Giwon On Kijoon Chae A Secure User Authentication Method in Networked Intelligent Manufacturing Systems. 123-129 2005 conf/cw/2005 CW http://doi.ieeecomputersociety.org/10.1109/CW.2005.9 db/conf/cw/cw2005.html#SohnCOC05