SSL Complete Guide 2021: HTTP to HTTPS - Root CA and Root Certificates in the OS

The video tutorial explains the concept of root certification authorities, focusing on how web browsers and operating systems trust these authorities. It uses Global Sign and Comodo as examples to illustrate the structure and trust mechanisms of root and intermediate certificates. The tutorial also covers the concept of self-signed certificates and how they are trusted by default in operating systems. The video concludes with an explanation of the chain of trust and how it is established between root and intermediate certificate authorities.

What is the primary role of a root certification authority?

• To issue certificates to end-users directly

• To validate the identity of web browsers

• To serve as the top entity in a certificate chain

• To encrypt data for secure communication

What does it mean when a certificate is self-signed?

• It is not trusted by any web browsers

• The issuer and subject are the same entity

• It is issued by a different organization

• It is only valid for a short period

How do operating systems ensure trust in root certification authorities?

• By manually verifying each certificate

• By only trusting certificates from well-known companies

• By shipping with a pre-installed list of trusted root certificates

• By requiring user approval for each certificate

Which tool can be used on Mac OS to view the list of trusted root certificates?

• Cert Manager

• System Preferences

• Keychain Access

• Terminal

Why are intermediate CA certificates not included in the operating system's trusted list?

• They are less secure than root CA certificates

• They are included in a separate list

• They are not necessary for establishing trust

• They are automatically updated by the browser

What is the significance of the chain of trust in digital certificates?

• It ensures that only root CAs can issue certificates

• It prevents any form of certificate revocation

• It allows users to create their own certificates

• It establishes a hierarchy of trust from root to intermediate CAs

What is the expiration date of the Comodo root CA certificate mentioned in the video?

• March 10th, 2025

• January 19th, 2038

• December 15th, 2021

• July 4th, 2040