Jen-Ho Yang received the B.S. degree in computer science and information engineering from I-Shou University, Kaoshiung in 2002, and the Ph.D. degree in computer science and information engineering from National Chung Cheng University, Chiayi County in 2009. Since 2009, he has been an associate professor with the Department of Digital Multimedia Design in Kainan University, Taoyuan. His current research interests include electronic commerce, information security, cryptography, authentication for wireless environments, digital right management, and fast modular multiplication algorithm.