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 California, Davis
Skills you'll gain: Threat Modeling, Secure Coding, Cryptography, Open Web Application Security Project (OWASP), Encryption, Application Security, Vulnerability Assessments, Data Security, Exploitation techniques, Security Controls, Authentications, Vulnerability Management, Personally Identifiable Information
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Machines, Blockchain, Identity and Access Management, Transaction Processing, Google Cloud Platform, Cryptography, Cloud Security
Advanced · Project · Less Than 2 Hours

Skills you'll gain: Blockchain, Digital Assets, Financial Inclusion, FinTech, Emerging Technologies, E-Commerce, Cryptography, Distributed Computing, Payment Systems, Financial Services, Cryptographic Protocols, Network Security, Process Design, Data Integrity, Computer Security, Transaction Processing, Scalability, Contract Management, Governance
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Encryption, Risk Management Framework, Multi-Factor Authentication, Information Systems Security, Cybersecurity, Identity and Access Management, Authentications, Personally Identifiable Information, Security Controls, Threat Management, Data Security, Information Privacy, Network Security, Authorization (Computing)
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Threat Management, Vulnerability Assessments, Incident Response, Computer Security Incident Management, Public Key Infrastructure, IT Security Architecture, Disaster Recovery, Vulnerability Management, Regulation and Legal Compliance, Threat Detection, Cyber Security Assessment, Risk Management, Compliance Management, Regulatory Compliance, Network Security, Infrastructure Security, Cloud Security, Hardening, Security Engineering, Software-Defined Networking
Beginner · Specialization · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Penetration Testing, MITRE ATT&CK Framework, Cyber Security Assessment, Public Key Infrastructure, Cybersecurity, Threat Modeling, Cryptography, Exploitation techniques, Security Testing, Vulnerability Scanning, Encryption, Technical Writing, Human Factors (Security)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Object Oriented Programming (OOP), File I/O, Encryption, Data Structures, Software Development, Data Visualization, Model Evaluation, Automation, Machine Learning Algorithms, Classification Algorithms, Data Preprocessing, Public Key Cryptography Standards (PKCS), Databases, Python Programming, Natural Language Processing, Algorithms, Key Management, Software Installation, Data Validation
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Metasploit, Penetration Testing, Malware Protection, Exploitation techniques, Database Management, Cyber Threat Intelligence, Vulnerability Assessments, Cyber Security Assessment, Brute-force attacks, Cryptography, Cybersecurity, Vulnerability Scanning, Intrusion Detection and Prevention, Data Import/Export, MySQL, Encryption, Mobile Security, Linux, Linux Administration
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Blockchain, Cryptography, Data Storage, Data Storage Technologies, Network Architecture, FinTech, Information Technology Architecture, Distributed Computing, Security Controls, Other Programming Languages, Programming Principles, Emerging Technologies, Scalability, Data Integrity, Transaction Processing, Interoperability
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Vulnerability Management, Cyber Threat Intelligence, Human Factors (Security)
Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Big Data, Cybersecurity, Pedagogy, Data Security, Cryptography, Information Privacy, Encryption, Responsible AI, AI Personalization, Computer Science, Information Technology, Web Applications, Web Servers, Machine Learning, Supervised Learning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Network Security, OSI Models, Public Key Infrastructure, Network Protocols, Encryption, Remote Access Systems, Firewall, Brute-force attacks, Emerging Technologies, TCP/IP, Wireless Networks, Authentications
Advanced · Course · 1 - 4 Weeks