Free Online Cryptography Courses & MOOCs

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.

Aug 31st 2026

4 Weeks

Math Cryptography Security

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.

Aug 31st 2026

5-12 Weeks

Cryptography Transposition Introduction to Applied Cryptography Specialization

Coursera

University of Colorado System

Asymmetric Cryptography and Key Management (Coursera)

Security & Networking

Dive into the world of secure digital communication with our course on Asymmetric Cryptography and Key Management. Learn about public-private keys, RSA encryption, and Diffie-Hellman key exchange to protect your data effectively.

Aug 31st 2026

4 Weeks

Cryptography Networks Computer Security

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.

Aug 31st 2026

4 Weeks

Cryptography Computer Security Applied Cryptography Specialization

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.

Aug 31st 2026

4 Weeks

Cryptography Networks Information Theory

Coursera

New York University

Cyber Attack Countermeasures (Coursera)

Security & Networking

Discover essential strategies for safeguarding your digital assets with 'Cyber Attack Countermeasures'. This course provides a strong foundation in cyber defense, starting with foundational models and moving into practical applications of authentication protocols such as RSA SecureID and Kerberos. Whether you're new to cybersecurity or looking to enhance your expertise, this course will equip you with the knowledge needed to protect against potential threats.

Aug 31st 2026

4 Weeks

Cryptography Cybersecurity Cyber Attacks

Coursera

University of Cape Town

How Entrepreneurs in Emerging Markets can master the Blockchain Technology (Coursera)

Economics & Finance Business

Dive into the world of blockchain and distributed ledger technologies with our specialized course tailored for entrepreneurs in emerging markets. Gain a deep understanding of essential concepts like cryptography and distributed consensus while exploring how blockchain can revolutionize your business operations. This course also introduces you to artificial intelligence and machine learning, covering key algorithms such as supervised, unsupervised, and reinforcement learning.

Aug 31st 2026

4 Weeks

Cryptography Artificial Intelligence Fintech

Coursera

University of Minnesota

Cloud Security Basics (Coursera)

CS: Information & Technology

Dive into the essential aspects of Cloud Security with our beginner-friendly course. Gain a solid understanding of how to protect your data in the cloud by applying timeless security techniques to today's complex challenges. Explore real-world case studies and learn systematic approaches to identifying and addressing cloud vulnerabilities.

Aug 31st 2026

4 Weeks

Cryptography Security Cloud Computing

Coursera

Intel Corporation

Intel® Network Academy - Network Transformation 102 (Coursera)

Security & Networking

Embark on a journey into the future of networking with Intel's Network Transformation 102 course. Dive deep into software-defined infrastructure (SDI), network functions virtualization (NFV), and software-defined networking (SDN). Learn how to optimize your network operations, develop VNFs, secure data with advanced cryptography techniques, and leverage Intel hardware for accelerated compute-intensive tasks.

Aug 31st 2026

4 Weeks

Cryptography Networks SDN