He has been actively engaged in research and publishing in refereed journals and conference proceedings in the areas of information security, cryptography, RFID, biometrics, quantum computing, mobile computing, and wireless communications. Prior to joining CSI, he worked in both academia as a lecturer and industry as a software and electronic engineer. He received a PhD in Computer Science from the City University of New York in 2007, and a PhD in Electrical Engineering from Beijing Jiaotong University in 1999.