Classical Cryptosystems and Core Concepts

Dr. Sang-Yoon Chang is an Assistant Professor in the Computer Science department at the University of Colorado Colorado Springs (UCCS). He specializes in computer security and computer networks, with a particular focus on wireless networks, edge computing, and cyber-physical systems. His research aligns closely with advancements in the Internet of Things (IoT) and aims to enhance the security and efficiency of networked systems. Dr. Chang has a strong academic background, having earned both his Bachelor’s and Ph.D. degrees in Electrical and Computer Engineering from the University of Illinois at Urbana-Champaign.In addition to his research, Dr. Chang teaches several courses related to cryptography and network security, including "Asymmetric Cryptography and Key Management" and "Cryptography and Information Theory." His work has garnered attention for its relevance in today's technology landscape, particularly as it pertains to secure communications in increasingly interconnected environments.

Dr. Richard White is an Assistant Research Professor at the University of Colorado, Colorado Springs, specializing in cybersecurity and its applications across various infrastructures. He has an extensive background in cybersecurity infrastructure, remediation, and program development, with over 25 years of experience in systems design and security technology implementation. Dr. White holds a Ph.D. in Engineering Security from the University of Colorado, Colorado Springs, and has previously served as Chief Information Security Officer for the United States Capitol Police.His research interests include classical cryptography, cybersecurity policies for critical infrastructures such as aviation and utilities, and the intersection of homeland security and cybersecurity. Dr. White has developed several online courses on Coursera, including "Mathematical Foundations for Cryptography" and "Cybersecurity Policy for Aviation and Internet Infrastructures," aimed at educating students on essential cybersecurity concepts and practices.

Dr. William Bahn is a Lecturer in the Department of Computer Science at the University of Colorado, where he brings extensive expertise in engineering and computer science. He holds a B.Sc. in Engineering Physics and an M.Eng in Engineering Systems from the Colorado School of Mines, as well as a Ph.D. in Electrical Engineering from the University of Colorado Colorado Springs. His academic background equips him with a solid foundation to teach and engage students in complex technical subjects.Dr. Bahn teaches courses on Coursera that focus on cryptography, including Classical Cryptosystems and Core Concepts and Mathematical Foundations for Cryptography. His teaching emphasizes the importance of understanding both theoretical concepts and practical applications in the field of cryptography, preparing students for careers in cybersecurity and data protection.