Cryptography courses cover techniques for securing information and communication, focusing on encryption, decryption, hashing, and digital signatures. You’ll learn about symmetric and asymmetric key algorithms, protocols for secure data transmission, and how cryptographic methods protect privacy and integrity online.

Skills you'll gain: Threat Detection, Authentications, Cloud Security, Change Control, Security Awareness
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Cryptography, Encryption, Application Development, Security Engineering, C++ (Programming Language)
★ 4.2 (17) · Intermediate · Guided Project · Less Than 2 Hours

Duke University
Skills you'll gain: Rust (Programming Language), Command-Line Interface, Build Tools, Encryption, Package and Software Management, Application Development, Cryptography, Software Engineering
Beginner · Guided Project · Less Than 2 Hours

Kennesaw State University
Skills you'll gain: Cybersecurity, IT Security Architecture, Network Security, Disaster Recovery, Application Security, Cyber Operations, Computer Security, Cryptography, Cyber Risk, Encryption, Secure Coding, Systems Development Life Cycle, Cyber Governance, Identity and Access Management
★ 4.3 (2.4K) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Cryptography, Encryption, Python Programming
★ 4.6 (16) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Cryptography, Encryption, Cybersecurity, Identity and Access Management, OSI Models, Network Security, Information Systems Security, IT Security Architecture, Security Controls, Network Infrastructure, Computer Security, Infrastructure Security, TCP/IP, Computer Networking, Cryptographic Protocols, General Networking, Authentications, Authorization (Computing), Public Key Infrastructure, Cyber Threat Intelligence
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cyber Security Strategy, Enterprise Security, Cybersecurity, IT Security Architecture, Security Strategy, Cyber Threat Intelligence, Cyber Operations, Cyber Risk, Computer Security Incident Management, Incident Response, Security Controls, Network Security, Application Security, Cyber Threat Hunting, Security Management, Secure Coding, Threat Detection, Security Information and Event Management (SIEM), Artificial Intelligence, Network Analysis
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Identity and Access Management, Application Security, Enterprise Security, Threat Modeling, Security Management, DevSecOps, Security Strategy, Security Controls, Authentications, Cloud Security, Cybersecurity, Human Factors (Security), Security Software, Security Testing, Cryptography, Public Key Infrastructure, Authorization (Computing), Key Management, Governance, Business
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Penetration Testing, Distributed Denial-Of-Service (DDoS) Attacks, MITRE ATT&CK Framework, Cryptography, Cyber Threat Intelligence, Cyber Threat Hunting, Open Web Application Security Project (OWASP), Cybersecurity, Cyber Security Assessment, Cyber Security Strategy, Cloud Security, Threat Modeling, Security Testing, Secure Coding, Network Security, Cyber Attacks, Security Controls, Security Awareness, Cyber Risk, Security Strategy
★ 4.6 (297) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Cybersecurity, Network Security, Cloud Security, Cyber Attacks, Information Systems Security, Application Security, OSI Models, Cryptography, Data Security, Cryptographic Protocols, Encryption, Endpoint Security, General Networking, Malware Protection, Wireless Networks, Network Protocols, Public Key Infrastructure, Data Integrity
Intermediate · Course · 1 - 4 Weeks

The Skill Valley
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: IT Security Architecture, Information Technology Architecture, Enterprise Architecture, Business Continuity Planning, Business Continuity, Cryptography, Security Controls, Risk Mitigation, Cybersecurity, Risk Management Framework, Cloud Security, Risk Management, Network Security, Cyber Risk, Control Objectives for Information and Related Technology (COBIT), Governance, Cloud Computing, Incident Management
Intermediate · Course · 1 - 4 Weeks
Start with your focus. If you're interested in network security, choose courses covering SSL/TLS, VPNs, and secure communications. If you want to implement cryptography in software development, look for courses that include coding examples and libraries like OpenSSL or PyCrypto. Compare courses based on their focus on theoretical concepts or practical applications.