Encryption protects your data, but PKI protects your trust. If you don't understand how a Certificate Authority (CA) validates a server, or why OCSP Stapling is faster than a CRL, you don't understand how the internet works. In this video, Sec Guy breaks down the "Trust Anchor" model, explains the difference between the Root CA and Intermediate CA, and walks you through the modern TLS 1.3 Handshake.

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