Free Online Cryptography Courses & MOOCs

Coursera

EIT Digital

Web Connectivity and Security in Embedded Systems (Coursera)

Security & Networking

Embark on a journey to understand how modern devices connect and communicate over the web through our 'Web Connectivity and Security in Embedded Systems' course. Gain insights into essential technologies that enable internet connectivity for embedded devices, explore network protocols, and delve into securing these interconnected systems against potential threats. This course is designed for those interested in the intersection of computer science, networking, and cybersecurity as applied to embedded systems.

Sep 14th 2026

5-12 Weeks

Cryptography Security Embedded Systems

Coursera

University at Buffalo,The State University of New York

Blockchain Basics (Coursera)

CS: Software Engineering Computer Science

Dive into the world of blockchain with our introductory course designed to equip you with a solid understanding of essential concepts. Explore Bitcoin and Ethereum protocols, learn how to create nodes, accounts, mine, transact, transfer Ethers, and check balances. Perfect for beginners looking to get started in this transformative technology.

Sep 14th 2026

4 Weeks

Cryptography Bitcoin Blockchain

Coursera

University of London

Introduction to Applied Cryptography (Coursera)

Computer Science

Explore the essential role of cryptography in securing everyday applications like the internet, mobile phones, and cryptocurrencies. This beginner-friendly course provides a comprehensive introduction to the main cryptographic tools used today, equipping you with the knowledge to make informed decisions on their deployment.

Sep 14th 2026

4 Weeks

Cryptography Security Digital Security

Coursera

University of Maryland, College Park

Usable Security (Coursera)

Security & Networking

Explore the intersection of usability and security in 'Usable Security' on Coursera. This course teaches you to create secure systems that respect users' performance and goals. Dive into basic principles of human-computer interaction and apply them to develop secure systems that are both effective and user-friendly.

Sep 7th 2026

5-12 Weeks

Cryptography Security Cybersecurity

Coursera

EIT Digital

Security and Privacy for Big Data - Part 1 (Coursera)

Security & Networking

Dive into the world of big data security with our foundational course. Gain expertise in cryptographic principles and access control mechanisms to safeguard your big data systems effectively. This course is designed for those looking to ensure privacy and security in their big data projects, equipping you with the knowledge to plan, implement, and maintain secure practices.

Sep 7th 2026

1 Week

Cryptography Security Big Data

Coursera

University System of Georgia

Cybersecurity and Its Ten Domains (Coursera)

CS: Software Engineering

Dive into the critical field of Cybersecurity with our in-depth online course. Learn about the ten key domains, from governance to physical security, and gain the knowledge needed to safeguard digital environments effectively.

Aug 31st 2026

5-12 Weeks

Cryptography Information Security Cybersecurity

Coursera

University of California, San Diego,Higher School of Economics - HSE University

Number Theory and Cryptography (Coursera)

CS: Software Engineering CS: Theory

Explore the intriguing realm of number theory, from its historical roots to contemporary applications in cryptography. This course will guide you through fundamental concepts, revealing how numbers have shaped mathematics and secured our digital communications.

Aug 31st 2026

4 Weeks

Cryptography Algorithms Arithmetic

Coursera

University of Colorado System

Basic Cryptography and Programming with Crypto API (Coursera)

Security & Networking

Dive into the fascinating world of cryptography with our beginner-friendly online course, 'Basic Cryptography and Programming with Crypto API'. This course will equip you with essential knowledge in encryption methods, including mono-alphabetic substitution ciphers, one-time-pad, and quantum key distribution. You'll also explore efficient symmetric key algorithms like DES and AES, understand their applications, and learn how to protect against various attacks.

Aug 31st 2026

4 Weeks

Programming Cryptography Network Security

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.

Aug 31st 2026

3 Weeks

Cryptography Security Networks