Cryptography courses can help you learn encryption techniques, hashing algorithms, digital signatures, and secure communication protocols. You can build skills in threat modeling, cryptanalysis, and implementing security measures to protect sensitive data. Many courses introduce tools like OpenSSL, GnuPG, and various programming libraries that facilitate secure coding practices and help you apply cryptographic principles in real-world applications.

Skills you'll gain: Public Key Infrastructure, IT Security Architecture, Cloud Security, Hardening, Security Engineering, Cryptographic Protocols, Infrastructure Security, Information Systems Security, System Configuration, Cryptography, Endpoint Security, Key Management, Encryption, Mobile Security
Intermediate · Course · 1 - 4 Weeks

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

Packt
Skills you'll gain: Threat Management, Vulnerability Assessments, Incident Response, Incident Management, Computer Security Incident Management, Public Key Infrastructure, IT Security Architecture, Disaster Recovery, Vulnerability Management, Law, Regulation, and Compliance, Regulation and Legal Compliance, Threat Detection, Cyber Security Assessment, Risk Management, Risk Management Framework, Network Security, Security Architecture Review, Infrastructure Security, Cloud Security, Hardening
★ 4.7 (27) · Beginner · Specialization · 1 - 4 Weeks

Skills you'll gain: Network Security, Data Security, Server Side, Emerging Technologies, Quantum computing
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Blockchain, Network Security, Application Security, Computer Security, Cryptography, Cryptographic Protocols, Secure Coding, Encryption, Vulnerability Assessments, Scalability, Distributed Computing, Data Integrity, Exploitation techniques, Transaction Processing, Algorithms
★ 4.7 (89) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Identity and Access Management, Business Continuity, Cryptographic Protocols, Network Security, Cryptography, Encryption, User Provisioning, Security Management, Penetration Testing, ISO/IEC 27001, Threat Management, Network Performance Management, Information Systems Security, Network Architecture, Cyber Operations, Data Management, Software Development Methodologies, Cybersecurity, Configuration Management, White-Box Testing
★ 4.8 (176) · Beginner · Specialization · 3 - 6 Months

EC-Council
Skills you'll gain: Cryptography, Encryption, Systems Development Life Cycle, Human Factors (Security), Threat Management, Systems Development, Security Management, Security Awareness, Cybersecurity, Cyber Attacks, Computer Security Awareness Training, Cyber Security Policies, ISO/IEC 27001, Data Security, Security Controls, Network Security, Risk Management Framework, Cyber Risk
★ 4.9 (40) · Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Quantum computing, Public Key Cryptography Standards (PKCS), Cryptography, Data Structures, Cryptographic Protocols, Algorithms, Encryption, Theoretical Computer Science, Computer Science, Programming Principles, Mathematical Software, Advanced Mathematics
★ 4.6 (66) · Advanced · Course · 1 - 4 Weeks
Skills you'll gain: Blockchain, Ledgers (Accounting), Financial Inclusion, FinTech, Emerging Technologies, General Ledger, Public Key Infrastructure, Cryptography, Payment Systems, Digital Assets, Stakeholder Analysis, Cryptographic Protocols, Distributed Computing, Stakeholder Engagement, Digital Transformation, Transaction Processing, Information Privacy, Governance, Network Security, Data Integrity
★ 4.7 (2.5K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Key Management, Network Security, Digital Communications
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Public Key Infrastructure, Cryptography, Encryption, Data Security, Cryptographic Protocols, Data Integrity, Information Systems Security, Key Management, Digital Communications, Algorithms
Beginner · Course · 1 - 4 Weeks