Question

Which of the following is a component of PKI?

A: Certification authority
B: Registration authority
C: Client nodes
D: All of the above

Answer 1

PKI (Public Key Infrastructure) is a system used for secure communication. It involves components such as certification authority, registration authority, and client nodes.

Step-by-step explanation:

PKI stands for Public Key Infrastructure and it is a system used for secure communication. It involves the use of digital certificates and cryptographic keys to verify and authenticate the identities of users and systems.

Among the components of PKI are:

1. Certification authority: This is an entity that issues digital certificates to verify the authenticity of public keys. It acts as a trusted third party.
2. Registration authority: This entity is responsible for verifying the identity of individuals or systems requesting digital certificates.
3. Client nodes: These are the end-user devices or systems that participate in the PKI and use digital certificates for secure communication.

Therefore, the correct answer is Option D: All of the above as all three components mentioned are part of PKI.