Systems Security Certified Practitioner (SSCP) — Question 113

In which phase of Internet Key Exchange (IKE) protocol is peer authentication performed?

Answer options

• A. Pre Initialization Phase
• B. Phase 1
• C. Phase 2
• D. No peer authentication is performed

Correct answer: B

Explanation

Peer authentication is conducted in Phase 1 of the IKE protocol, where the identities of the parties are verified. Phase 2 focuses on establishing the security associations for the actual data transfer, while options A and D incorrectly suggest that authentication occurs either before or not at all.