PFS depends on which type of following encryption?
A.
Symmetric
B.
Classic
C.
Secret
D.
Asymmetric
Explanation:
Perfect Forward Secrecy depends on asymmetric or public key cryptography and cannot be achieved with symmetric cryptography.Answer option A is incorrect. Perfect Forward Secrecy cannot be accomplished via symmetric cryptography
Answer option C is incorrect. Remember that the security of any algorithm is not dependent on it being secret, merely upon the key being kept secret.
Answer option B is incorrect. Classic cryptography (such as the Caesar cipher, Vigenere cipher, etc.) is no longer used for secure communications.