Sang-Yoon Chang

I am an assistant professor at the Computer Science department at University of Colorado Colorado Springs (UCCS). I research in computer security and computer network focusing on wireless network, edge computing, and cyber-physical systems. My research also has high synergy with the developments of internet of things (IoT) and cyber-physical systems.

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Classical Cryptosystems and Core Concepts (Coursera) Coursera
University of Colorado System

Classical Cryptosystems and Core Concepts (Coursera)

Security & Networking

Discover the basics of cryptographic systems and their critical role in securing digital communications. This course offers a detailed exploration of classical cryptosystems and essential cryptography principles, providing you with a strong foundation to understand modern encryption techniques. Ideal for beginners and professionals alike, this course is designed to meet the growing demand for cybersecurity expertise.

Jun 8th 2026
3 Weeks
Cryptography Security Networks
Details
Mathematical Foundations for Cryptography (Coursera) Coursera
University of Colorado System

Mathematical Foundations for Cryptography (Coursera)

Security & Networking

Dive into the world of cryptography with 'Mathematical Foundations for Cryptography', a foundational course designed to equip you with essential mathematical knowledge crucial for mastering cryptographic techniques. This introductory course, part of the 'Introduction to Applied Cryptography' series on Coursera, is perfect for newcomers to cybersecurity and aims to provide a strong base in algebra, probability, and other key math concepts necessary for understanding complex encryption methods.

Jun 8th 2026
4 Weeks
Math Cryptography Security
Details
Symmetric Cryptography (Coursera) Coursera
University of Colorado System

Symmetric Cryptography (Coursera)

Security & Networking

Dive into the world of secure communication with our Symmetric Cryptography course. Explore classical and modern encryption methods, including substitution, transposition, product ciphers, and advanced algorithms like DES, 3-DES, and AES. Gain insights into practical applications through various block cipher modes such as ECB, CBC, CFB, OFB, and CTR.

Jun 8th 2026
5-12 Weeks
Cryptography Transposition Introduction to Applied Cryptography Specialization
Details
Cryptographic Hash and Integrity Protection (Coursera) Coursera
University of Colorado System

Cryptographic Hash and Integrity Protection (Coursera)

Security & Networking

This comprehensive online course delves into the critical concepts of cryptographic hash functions, MACs, and digital signatures. Learn how these techniques protect data integrity and authenticate messages securely. Whether you're new to cybersecurity or looking to deepen your expertise, this course provides a solid foundation in ensuring the reliability and trustworthiness of digital communications.

Jun 8th 2026
4 Weeks
Cryptography Computer Security Applied Cryptography Specialization
Details
Cryptography and Information Theory (Coursera) Coursera
University of Colorado System

Cryptography and Information Theory (Coursera)

Security & Networking

Dive into the intriguing world where cryptography meets information theory in this enlightening online course. Uncover the secrets behind secure communication, understand the science of data encryption, and explore how information is coded and transferred. This course offers a unique perspective on protecting information from unauthorized access and provides insights into entropy, attacker capabilities, and more.

Jun 8th 2026
4 Weeks
Cryptography Networks Information Theory
Details
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