SSL Complete Guide 2021: HTTP to HTTPS - PKI, Chain of Trust and Certificates Summary

The video tutorial explains the public key infrastructure (PKI), focusing on building trust relationships between entities using public keys. It details the structure of certificates, including owner information, issuer signatures, and extensions. The chain of trust is established through root and intermediate certification authorities, with each signature made by a private key. The verification process involves checking the chain of trust when connecting to web servers, ensuring that trusted root certificates validate all subsequent certificates. The tutorial concludes with a brief summary and a preview of the next lecture.

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