PKI Explained: How the Internet Trusts Certificates 🔑

Public Key Infrastructure (PKI) is the global trust system that makes HTTPS possible.

In this video, we explain:

• What PKI is
• Root Certificate Authorities (CAs)
• Intermediate CAs
• Certificate chains
• Trust stores in browsers
• How certificate verification works
• Revocation (CRL & OCSP)
• What happens when trust fails
• How PKI is evolving for post-quantum cryptography

This is a complete deep dive into how digital trust works on the internet.