Public Key Infrastructure Courses and Certifications

SSL/TLS Fundamentals

4891 ratings at Udemy

Learn the fundamentals of SSL/TLS and how it works

• Udemy
• 2 hours 24 minutes
• Self-Paced
• Paid Course

The Complete SSL and TLS Guide: HTTP to HTTPS

4541 ratings at Udemy

Configure Cloudflare, FREE Let's Encrypt SSL/TLS certificate, NGINX and Apache web servers, create CSR SSL request

• Udemy
• 10 hours 56 minutes
• Self-Paced
• Paid Course

SSL/TLS Protocol and Handshake Process

1667 ratings at Udemy

Demystify SSL/TLS protocol handshake process, mastering key information security concepts applicable across vendors. Gain insights into cryptography, PKI, and digital certificates for robust system security.

• Udemy
• 37 minutes
• Self-Paced
• Free Online Course

(ISC)²

Cryptography

96 ratings at Coursera

Explore cryptography for confidentiality and integrity: public-key infrastructures, certificates and digital signing, hashing and salting, symmetric and asymmetric encryption, key management, and cryptographic attacks.

• Coursera
• 5 hours 37 minutes
• Self-Paced
• Paid Course

SSL/TLS Operations

1525 ratings at Udemy

Everything about SSL/TLS that Developers, SRE and DevOps would need in their toolbox (including TLS 1.3)

• Udemy
• 3 hours 54 minutes
• Self-Paced
• Paid Course

Learn OpenSSL with a real world cheatsheet

1503 ratings at Udemy

Learn real world commands from the OpenSSL Cheat Sheet to troubleshoot Open SSL

• Udemy
• 3 hours 40 minutes
• Self-Paced
• Paid Course

Encryption and Cryptography Essentials

51 ratings at Coursera

Apply AES and RSA encryption, Diffie-Hellman key exchange, MD5 and SHA hashing, and digital signatures using OpenSSL, and manage PKI certificates with OCSP validation.

• Coursera
• 4 weeks, 4 hours a week
• Self-Paced
• Paid Course

Encryption and Cryptography Essentials

51 ratings at Coursera

Master symmetric and asymmetric encryption with AES and RSA, apply MD5 and SHA hashing, manage PKI certificates with OCSP, and explore blockchain through hands-on OpenSSL labs.

• Coursera
• 4 weeks, 4 hours a week
• Self-Paced
• Paid Course

SSCP: Practical Cryptography

Learn practical cryptography for protecting information: symmetric and asymmetric encryption, hashing for data integrity, public key infrastructure, and choosing secure protocols.

• Coursera
• 4 hours 14 minutes
• Self-Paced
• Paid Course

Birla Institute Of Technology And Science–Pilani (BITS–Pilani)

Cryptography

Learn cryptography from classical ciphers to modern schemes: AES, DES and block cipher modes, RSA, Diffie-Hellman and ECC, PKI certificates, authentication methods, and zero-knowledge proofs.

• Coursera
• 12 weeks, 6 hours a week
• Self-Paced
• Paid Course

Packt

TLS & HTTPS Explained – Visualizations & Localhost Setup

Learn how HTTPS secures the web: dissect the TLS handshake and PKI, analyze encrypted traffic in Wireshark, and build a localhost HTTPS server with OpenSSL, XCA, and Node.js.

• Coursera
• 3 weeks, 2 hours a week
• Self-Paced
• Paid Course

Applied Cryptography, PKI, & Cloud Security

Implement TLS, IPSec, and key management, configure and validate digital certificates, and secure IaaS, PaaS, SaaS, hypervisors, and Docker containers under the shared responsibility model.

• Coursera
• 5 weeks, 1 hour a week
• Self-Paced
• Paid Course

Packt

Managing Resources, Security, and Networking in Windows 2025

Configure file shares, DFS, and FTP in Windows Server 2025, manage certificates and PKI, set up VPN and DirectAccess remote access, and harden servers with Defender.

• Coursera
• 5 weeks, 2 hours a week
• Self-Paced
• Paid Course

Conversations in Cryptography

Explore cryptography from classical rotating ciphers and XOR logic to hashing, RSA key pairs, digital certificates, and the public key infrastructure that secures the internet.

• Coursera
• 5 weeks, 1 hour a week
• Self-Paced
• Paid Course

Coursera

Secure INFINET & SFMS Architecture

Configure PKI-secured SFMS gateways over INFINET, analyze network diagrams for unsegmented links and outdated cipher suites, and evaluate resilience protocols against IDRBT guidelines.

• Coursera
• 3 weeks, 2 hours a week
• Self-Paced
• Paid Course