Which of the following is used to validate and in some cases revoke certificates?

Last Updated on July 31, 2021 by Admin

Which of the following is used to validate and in some cases revoke certificates?

  • PKI
  • DHCP
  • PGP
  • POP
Explanation:
A public key infrastructure (PKI) contains software hardware and policies that allow digital certificates to be created, validated, or revoked. A digital signature provides integrity, authentication, and non-repudiation in electronic mail. A PKI typically consists of the following components: certificates, a key repository, a method for revoking certificates, and a method to evaluate a certificate chain, which security professionals can use to follow the possession of keys.

Pretty Good Privacy (PGP) is an email encryption system. PGP uses a web of trust to validate public key pairs. In a web of trust model, users sign their own key pairs. If a user wants to receive a file encrypted with PGP, the user must first supply the public key.

Post Office Protocol (POP) is a client email program. It is used to retrieve email from the email server.

Dynamic Host Configuration (DHCP) is a protocol that allows network administrators to centrally manage and automate the assignment of Internet Protocol (IP) addresses in an organization’s network. DHCP can automatically assign a new IP address when a computer is plugged into a different location on the network.

Objective: Cryptography
Sub-Objective: Describe the operation of a PKI