SSL Complete Guide 2021: HTTP to HTTPS - PKI - Public Key Infrastructure Overview

The video tutorial explains Public Key Infrastructure (PKI), highlighting its components like Certification Authorities (CA) and intermediate CAs. It discusses the role of certificates in ensuring secure communication, including their use in SSL, TLS, and VPNs. The tutorial also covers the structure of certificates, emphasizing the importance of public keys and trust relationships within PKI. The video concludes with a brief on building trust in PKI and a preview of upcoming lectures on certificate details.

What is the primary purpose of Public Key Infrastructure (PKI)?

• To encrypt data using symmetric algorithms

• To store private keys

• To enable secure communication through trust

• To manage symmetric keys

What is the role of a Certification Authority (CA) in PKI?

• To encrypt data

• To manage VPN connections

• To sign certificates and delegate trust

• To store public keys

Which of the following is a responsibility of an intermediate CA?

• Issuing new certificates

• Encrypting data

• Managing VPN tunnels

• Storing private keys

What is a certificate primarily used for in PKI?

• To store private keys

• To provide a public key for secure communication

• To encrypt data using symmetric keys

• To manage VPN connections

What is the most important information stored in a certificate?

• The symmetric key

• The public key

• The private key

• The VPN configuration