25 Best Cryptography Courses Online

An Introduction to Cryptography

Offered by University of Leeds

Cryptography is an essential part of secure but accessible communication that's critical for our everyday life and organisations use it to protect their privacy and keep their conversations and data confidential. This co...

Basic Cryptography and Programming with Crypto API

Offered by University of Colorado System

In this MOOC, we will learn the basic concepts and principles of crytography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption techni...

Cryptography

Offered by Birla Institute of Technology & Science, Pilani

This course is designed to give you a solid foundation in how information is protected in the digital age. Step into the world of cryptography—the science behind secure communication. This course aims to prepare you for...

Introduction to Applied Cryptography

Offered by University of Colorado System

Cryptography is an essential component of cybersecurity. The need to protect sensitive information and ensure the integrity of industrial control processes has placed a premium on cybersecurity skills in today’s informat...

Number Theory and Cryptography

Offered by University of California San Diego

A prominent expert in the number theory Godfrey Hardy described it in the beginning of 20th century as one of the most obviously useless branches of Pure Mathematics”. Just 30 years after his death, an algorithm for encr...

Applied Cryptography

Offered by University of Colorado System

This specialization is intended for the learners interested in or already pursuing a career in computer security or other cybersecurity-related fields. Through four courses, the learners will cover the security of inform...

Cryptography I

Offered by Stanford University

Cryptography is an indispensable tool for protecting information in computer systems. In this course you will learn the inner workings of cryptographic systems and how to correctly use them in real-world applications. Th...

Security+ Certification - Cryptography Domain

This course is for beginners and IT pros looking to get certified and land an entry level Cyber Security position paying upwards of six figures!  There are currently over a million Cyber Security job openings global and...

PKI & Cryptography Basics: Certificates, TLS & OpenSSL!!

This course introduces the fundamental concepts of Public Key Infrastructure (PKI), cryptography, encryption, certificates, TLS, and OpenSSL in a clear, theory-focused way. It is designed as a no-configuration, no-lab le...

Cryptography and Computer Security

In today’s digital world, the protection of information is more critical than ever. Cryptography and Computer Security is a comprehensive course designed to equip learners with the foundational knowledge and practical sk...

Python Cryptography: Analyze & Break Ciphers

Offered by EDUCBA

Learners will analyze classical ciphers, apply Python programming to cryptographic challenges, and evaluate cipher vulnerabilities through hands-on hacking exercises. By the end of the course, they will be able to design...

Fundamentals of Network Security and Cryptography

Offered by Packt

Updated in May 2025. This course now features Coursera Coach! A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as yo...

Security Risk Management & Cryptography Fundamentals

Offered by Total Seminars

This course launches the CompTIA Security+ Specialization with the foundational security concepts that underpin every other domain on the exam. Covering approximately 4 hours of expert instruction across exam preparation...

Blockchain and Cryptography Overview

Offered by SkillUp

The Blockchain and Cryptography Overview course is a part of the Certified Blockchain Security Professional (CBSP) Exam Prep Specialization and introduces you to fundamental cryptographic principles. You will gain insigh...

Applied Python: Web Dev, Machine Learning & Cryptography

Offered by EDUCBA

This hands-on specialization equips learners to build and deploy dynamic web applications, apply supervised machine learning techniques, and implement real-world cryptographic systems using Python. Across five project-ba...

Python Hacking & Cryptography Mastery

Offered by EDUCBA

The Python Hacking & Cryptography Mastery Specialization takes learners from beginner to advanced levels in both Python programming and cybersecurity fundamentals. Through a structured series of practical, hands-on cours...

Unlocking Information Security I: From Cryptography to Buffer Overflows

Offered by Tel Aviv University

Learn how systems are hacked and defended.

Cyber Defense: Penetration Testing, Threat Hunting, and Cryptography

Offered by IBM

This course focuses on the basics of penetration testing, threat hunting, and cryptography. It enables learners to gain an understanding of different vulnerabilities and techniques to mitigate and remediate against those...

Undergraduate Certificate in Cybersecurity

Offered by Maryville University

The Undergraduate Certificate in Cybersecurity is designed to equip you with foundational knowledge and practical skills in this ever-important field. This course offers insights into the principles of cybersecurity, inc...

Design and Analyze Secure Networked Systems

Offered by University of Colorado System

In this MOOC, we will learn the basic cyber security concepts, how to identify vulnerabilities/threat in a network system. We will apply CIA basic security services in the triage of recent cyberattack incidents, such as...

Web3 and Blockchain Transformations in Global Supply Chains

Offered by INSEAD

The global supply chain is a $50 trillion industry and is the foundation of our global economy. While information technology has improved the flow of goods globally over the last few decades, as the COVID-19 crisis revea...

The Merkle Tree and Cryptocurrencies

Offered by University of California, Irvine

Apply what you have learned about cryptography and hashing in previous blockchain to the Merkle Tree, which underlies the process of adding new blocks — representing new transactions — to the blockchain. This course also...

Cloud Application Security

Offered by University of Minnesota

After completing the course, the student should be able to do the following: ● List and describe the OWASP Top 10 vulnerabilities. ● Identify methods to provide cloud security assurance as part of the development life cy...

Fundamentals of Computer Network Security

Offered by University of Colorado System

This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses,...

Secure Coding Practices

Offered by University of California, Davis

This Specialization is intended for software developers of any level who are not yet fluent with secure coding and programming techniques.Through four courses, you will cover the principles of secure coding, concepts of...