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.

University of Colorado Boulder
Skills you'll gain: AI Security, Penetration Testing, Exploit development, Network Security, Exploitation techniques, Open Web Application Security Project (OWASP), Cyber Security Assessment, Unix, Cyber Operations, Computer Security, Cybersecurity, Artificial Intelligence and Machine Learning (AI/ML), Cryptographic Protocols, Network Protocols, Cryptography, Security Awareness, Generative AI Agents, Server Side, Web Applications, Machine Learning Algorithms
★ 4.5 (21) · Intermediate · Specialization · 3 - 6 Months

Association of International Certified Professional Accountants
Skills you'll gain: Blockchain, Key Management, Digital Assets, Asset Protection, Supply Chain, Data Security, Supply Chain Management, FinTech, Cryptography, Security Management, Cybersecurity, Accounting, Security Awareness, Payment Systems, Emerging Technologies, Ledgers (Accounting), Security Controls, Securities (Finance), Risk Management, Business
★ 4.6 (218) · Beginner · Specialization · 1 - 4 Weeks

Skills you'll gain: General Data Protection Regulation (GDPR), Information Privacy, Personally Identifiable Information, Data Security, Data Governance, Vulnerability Management, Vulnerability Assessments, Law, Regulation, and Compliance, Big Data, Encryption, Cryptography, Cryptographic Protocols
★ 4.7 (262) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Quantum computing, Algorithms, IBM Cloud, Cryptography, Python Programming, Mathematical Software, Simulations
★ 4.6 (27) · Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Blockchain, Digital Assets, Portfolio Risk, Portfolio Management, Cryptography, Investments, Asset Protection, Market Dynamics, Cryptographic Protocols, FinTech, Financial Systems, Payment Systems, Financial Market, Financial Regulations, Securities (Finance), Transaction Processing, Financial Policy, Bank Regulations, Financial Regulation, Key Management
★ 5 (16) · Beginner · Course · 1 - 4 Weeks

University of Cape Town
Skills you'll gain: Blockchain, Cryptography, FinTech, Cryptographic Protocols, Emerging Technologies, Machine Learning Methods, Encryption, Ledgers (Accounting), Bookkeeping, Machine Learning, Financial Data, AI Enablement, Machine Learning Algorithms, Applied Machine Learning, Artificial Intelligence, Financial Systems, Supervised Learning, Data Structures, Information Privacy, Entrepreneurship
★ 4.7 (48) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: IBM Cloud, Cryptography, Cryptographic Protocols, Algorithms, Python Programming, Linear Algebra, Software Installation, Development Environment, Application Frameworks
★ 4.1 (12) · Beginner · Course · 3 - 6 Months

EC-Council
Skills you'll gain: Network Security, Mobile Security, Public Key Infrastructure, Cryptography, Security Controls, Cryptographic Protocols, Cybersecurity, Authorization (Computing), Encryption, Authentications, Identity and Access Management, Wireless Networks, Cloud Computing, Cloud Security, Virtual Machines, Network Monitoring, Data Security, Internet Of Things, Virtualization and Virtual Machines
★ 4.6 (125) · Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Secure Coding, ASP.NET, Role-Based Access Control (RBAC), Authentications, Data Security, Microsoft Copilot, Encryption, Authorization (Computing), Identity and Access Management, Back-End Web Development, Debugging, Application Security, Data Storage, Cryptography, Application Programming Interface (API), User Accounts
★ 4.2 (17) · Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Key Management, Data Security, Cryptography, Encryption, Cybersecurity, Network Security, Cryptographic Protocols, Security Information and Event Management (SIEM), Network Monitoring, Information Assurance, Network Analysis, Intrusion Detection and Prevention, Security Controls, Event Monitoring, Data Capture, Continuous Monitoring, Data Integrity
★ 4.8 (66) · Mixed · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Authentications, Secure Coding, Cryptography, Application Security, Web Applications, Javascript, Identity and Access Management, Node.JS, Security Awareness
★ 4.5 (70) · Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Application Security, Vulnerability Assessments, Software Design, Threat Modeling, Vulnerability Management, Security Engineering, Secure Coding, Software Design Patterns, Software Architecture, Software Visualization, Exploitation techniques, Cryptography, Cryptographic Protocols, Blockchain, Public Key Cryptography Standards (PKCS), Data Validation
★ 4.6 (94) · Intermediate · Course · 1 - 3 Months