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Mile2_Security

MK0-201 · Question #158

You have collected a series of messages that are all encrypted. You do not have access to the matching plaintext nor do you have any idea of the key and algorithm that were used to encrypt those…

The correct answer is D. Ciphertext only attack. See the full explanation below for the reasoning.

Question

You have collected a series of messages that are all encrypted. You do not have access to the matching plaintext nor do you have any idea of the key and algorithm that were used to encrypt those messages. You will attempt a crypto attack in order to find the key. How would you call such an attack?

Options

  • AChosen Plaintext Attack
  • BKnown ciphertext attack
  • CChosen Key Attack
  • DCiphertext only attack

How the community answered

(49 responses)
  • A
    10% (5)
  • B
    2% (1)
  • C
    4% (2)
  • D
    84% (41)

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