Certificates from Scratch - X.509 Certificates explained

What are X.509 Certificates? What is a "Certification Authority" or CA? How can we create our own CA? How can we sign our own Server certificates? How does LetsEncrypt work? How do private and public keys work? What is a certificate Chain or a Chain of Trust? The answers are in this video.

The XCA Tool can be obtained here: https://hohnstaedt.de/xca/

More Info on my Cheat Sheet Repo here: https://github.com/onemarcfifty/cheat...

0:00 about certificates
2:42 Certificate Chains / CA
7:15 private keys
9:14 how do private/public keys work?
12:38 how does Letsencrypt work ?
14:18 We create our own CA and certificates
16:42 When and how to use a self signed CA

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