Young-Sik Kim received B.S., M.S., and Ph.D. degrees in electrical engineering and computer science from Seoul National University in 2001, 2003, and 2007, respectively. He joined Semiconductor Division, Samsung Electronics and carried out research and development of secure hardware IPs for various embedded systems, especially for smartcards until the end of August in 2010. He is now an associate professor at Chosun University, Gwangju, Korea. His research interests include post-quantum cryptographi, IoT security, physical layer security, data hiding, channel coding, and signal design.