Namje Park received his BSc degree in information industry from Dongguk University, Korea in 2000, and received his M.E., and Ph.D. degrees in Information Engineering from Sungkyunkwan University in 2003, and 2008 respectively. He has been a Professor at the Department of Computer Education, and Department of Convergence Information Security at Jeju National University since 2010. He has been serving as a Research Scientist at Arizona State University since 2010. Before joining the researcher at ASU, he had worked as a post-doc at the University of California, Los Angeles for 1 year. He had an appointment as the senior engineer of the information security research division of the Electronics and Telecommunication Research Institute for 6 years. He is concerned with the information security technology field for mobile environments, IoT systems, Smart Grid, Blockchain Security, Ubiquitous computing including IoT, and a variety of cryptographic and privacy technologies. He has many talks related to mobile and information security technologies.