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: Open Web Application Security Project (OWASP), Mobile Security, Network Security, Cybersecurity, Cryptography, Intrusion Detection and Prevention, Wireless Networks, Encryption, Application Security, Exploitation techniques, Web Applications, Cloud Security, Internet Of Things
★ 4.9 (20) · Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Cryptography, Brute-force attacks
★ 4.5 (555) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: MITRE ATT&CK Framework, Vulnerability Assessments, Open Web Application Security Project (OWASP), Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Management, Threat Modeling, Cybersecurity, Malware Protection, Mobile Security, Cyber Threat Intelligence, Exploitation techniques, Threat Detection, Threat Management, Network Security, Cryptography, Information Systems Security, Intrusion Detection and Prevention, Cyber Security Strategy, Cyber Attacks, Cloud Security
★ 4.8 (36) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Cryptography, Exploratory Data Analysis, Event-Driven Programming, Encryption, Cryptographic Protocols, Server Side, Web Development, Regression Analysis, Apache, Web Scraping, Machine Learning Algorithms, Natural Language Processing, Web Applications, Key Management, Test Tools, Python Programming, Predictive Modeling, Machine Learning Methods, Database Application, Supervised Learning
★ 4.8 (75) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Cybersecurity, Threat Management, Computer Security, Cyber Attacks, Data Security, Cryptography, Threat Detection, Encryption, Security Controls, Change Control, Network Security, Enterprise Security, Authorization (Computing), Distributed Denial-Of-Service (DDoS) Attacks, Identity and Access Management, Risk Management, Authentications
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Incident Response, Network Security, Intrusion Detection and Prevention, Computer Security Incident Management, Command-Line Interface, Cryptography, Cyber Security Strategy, Open Web Application Security Project (OWASP), Application Security, Secure Coding, Cybersecurity, IT Security Architecture, Encryption, Vulnerability Assessments, Cyber Attacks, Multi-Factor Authentication, Information Systems Security, Cloud Security, Penetration Testing, Risk Management
★ 4.7 (72) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Public Key Infrastructure, Cryptography, Encryption, Windows Servers, Cryptographic Protocols, Web Servers, Active Directory, Cybersecurity, System Configuration
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Blockchain, Cryptography, Encryption, Key Management, Cryptographic Protocols, Data Security, Quantum computing, Information Privacy, Algorithms
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Risk Management, Risk Management Framework, Disaster Recovery, Cryptography, Encryption, Risk Mitigation, DevSecOps, Incident Response, Cyber Operations, Application Security, Security Management, Cybersecurity, Identity and Access Management, Security Testing, OSI Models, Incident Management, Governance Risk Management and Compliance, Cyber Security Assessment, Cyber Risk, Security Awareness
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Cloud Security, IT Security Architecture, Data Loss Prevention, Security Management, Identity and Access Management, Security Controls, Cyber Threat Intelligence, Security Strategy, Cybersecurity, Cyber Security Assessment, Security Information and Event Management (SIEM), Vulnerability Management, Incident Response, Cryptography, Zero Trust Network Access, Risk Management, Digital Forensics, Threat Detection, Public Key Infrastructure, Public Key Cryptography Standards (PKCS)
Beginner · Specialization · 3 - 6 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Cryptographic Protocols, Cybersecurity, Email Security, Firewall, Algorithms, Data Integrity
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Cryptography, Cybersecurity, Network Security, Cyber Risk
★ 5 (8) · Beginner · 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.