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 Leeds
Skills you'll gain: Logical Reasoning, Deductive Reasoning, Computational Logic, Computational Thinking, Algorithms, Artificial Intelligence, Cryptography, Graph Theory
Beginner · 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
Intermediate · Course · 1 - 4 Weeks

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
Beginner · Course · 1 - 3 Months

Skills you'll gain: Audit Planning, Service Level Agreement, Data Governance, Systems Development Life Cycle, Data Loss Prevention, Security Testing, Network Security, Software Development Life Cycle, IT Management, Systems Development, Incident Management, IT General Controls (ITGC), Problem Management, Control Objectives for Information and Related Technology (COBIT), Cryptography, Cloud Management, Generally Accepted Auditing Standards, Software Development Methodologies, Auditing, Internal Controls
Intermediate · Specialization · 3 - 6 Months

The University of Sydney
Skills you'll gain: Blockchain, Distributed Computing, Network Security, Scalability, Cryptography, Data Integrity, Transaction Processing, Algorithms
Beginner · Course · 1 - 3 Months

Palo Alto Networks
Skills you'll gain: Zero Trust Network Access, Network Security, Endpoint Security, Network Administration, General Networking, TCP/IP, Cybersecurity, Network Infrastructure, Firewall, Security Controls, Cryptography, OSI Models, Network Protocols, Dynamic Host Configuration Protocol (DHCP), Encryption, Authentications, Network Routing, Software As A Service
Intermediate · Course · 1 - 3 Months

University of Minnesota
Skills you'll gain: Cloud Security, Application Security, Network Security, Computer Security, Cloud Computing, Cybersecurity, Security Controls, Infrastructure Security, Remote Access Systems, Cyber Attacks, Public Key Infrastructure, Hardening, Cryptography, Vulnerability Management, Private Cloud, Cryptographic Protocols, Vulnerability Assessments, Virtualization, Virtual Machines, Authentications
Beginner · Course · 1 - 4 Weeks

EC-Council
Skills you'll gain: Digital Forensics, Network Security, Incident Response, Cryptography, Penetration Testing, Vulnerability Management, Cybersecurity, Application Security, Cyber Security Policies, Security Information and Event Management (SIEM), Threat Detection, Network Monitoring, Cloud Security, Vulnerability Assessments, Malware Protection, Mobile Security, Identity and Access Management, Internet Of Things, Risk Analysis, Web Applications
Beginner · Professional Certificate · 3 - 6 Months

Fractal Analytics
Skills you'll gain: Computing Platforms, Cloud Computing, Information Technology, Cybersecurity, Linear Algebra, Critical Thinking
Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Data Ethics, Interactive Learning, Big Data, Cybersecurity, Student Engagement, Pedagogy, General Networking, Blockchain, Digital pedagogy, Algorithms, Data Security, Teaching, digital literacy, Cryptography, Spatial Data Analysis, Technical Communication, Diversity Awareness, Digital Transformation, Diversity Equity and Inclusion Initiatives, Computer Science
Beginner · Specialization · 3 - 6 Months

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
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Exploitation techniques, Authentications, Vulnerability Assessments, Application Security, Vulnerability Management, Event Monitoring, Security Controls, Data Integrity, Continuous Monitoring, Secure Coding, System Monitoring, Patch Management, Identity and Access Management, Multi-Factor Authentication, Authorization (Computing), Cryptography, Extensible Markup Language (XML), System Configuration, Incident Response
Intermediate · Specialization · 3 - 6 Months