CAS-005 · Question #278
Which of the following best describes the reason a network architect would enable forward secrecy on all VPN tunnels?
The correct answer is B. This process reduces the success of attackers performing cryptanalysis. Forward secrecy, also known as perfect forward secrecy, is a feature of certain key agreement protocols that ensures session keys will not be compromised even if the server's private key is compromised in the future. By enabling forward secrecy on VPN tunnels, each session uses…
Question
Which of the following best describes the reason a network architect would enable forward secrecy on all VPN tunnels?
Options
- AThis process is a requirement to enable hardware-accelerated cryptography.
- BThis process reduces the success of attackers performing cryptanalysis.
- CThe business requirements state that confidentiality is a critical success factor.
- DModern cryptographic protocols list this process as a prerequisite for use.
How the community answered
(25 responses)- B96% (24)
- D4% (1)
Explanation
Forward secrecy, also known as perfect forward secrecy, is a feature of certain key agreement protocols that ensures session keys will not be compromised even if the server's private key is compromised in the future. By enabling forward secrecy on VPN tunnels, each session uses a unique key, and these keys are not derived from a common master key. This means that even if an attacker obtains the server's private key, they cannot decrypt past sessions, thereby significantly reducing the effectiveness of cryptanalysis attacks.
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