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CAS-002 · Question #516

PFS depends on which type of following encryption?

The correct answer is D. Asymmetric. 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 Answer option C is incorrect. Remember that the security of…

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Question

PFS depends on which type of following encryption?

Options

  • ASymmetric
  • BClassic
  • CSecret
  • DAsymmetric

How the community answered

(50 responses)
  • A
    2% (1)
  • B
    2% (1)
  • C
    4% (2)
  • D
    92% (46)

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 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.

Topics

#perfect forward secrecy#asymmetric encryption#cryptographic dependency#key exchange

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