Crucial Exams

Certified Ethical Hacker (CEH) Practice Question

During a penetration test, you capture IKE packets from an IPSec tunnel that negotiates keys with an ephemeral Diffie-Hellman exchange. The network administrator states that, even if the VPN gateway's long-term private key is later compromised, previously recorded sessions will remain confidential. Which cryptographic concept is being implemented in this scenario?

  • Perfect forward secrecy

  • Key stretching

  • Non-repudiation

  • Key escrow

Certified Ethical Hacker (CEH)
Cryptography
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