Free Online Cryptanalysis Courses & MOOCs

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

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

FutureLearn

Coventry University,Institute of Coding

An Introduction to Cryptography (FutureLearn)

Sci: Mathematics Science

Explore the intriguing history of cryptography from ancient secret messages to contemporary data security. This course will introduce you to the basics of encryption and decryption, covering everything from historical code-breaking techniques to the latest advancements in secure communication.

Self Paced

2 Weeks

Cryptography Security Data Encryption

Coursera

Novosibirsk State University

Cryptography: Boolean functions and related problems (Coursera)

Security & Networking

Dive into the fascinating world of cryptography with our 'Cryptography: Boolean Functions and Related Problems' course. Explore crucial mathematical principles that underpin secure communication systems and discover how these principles impact cipher resilience against different types of attacks. Whether you're a beginner or an advanced learner, this course will equip you with the knowledge to understand and appreciate the complexities of cryptographic security.

Aug 8th 2022

5-12 Weeks

Cryptography Artificial Intelligence Security