GAQM
CPEH-001 · Question #776
What is the known plaintext attack used against DES which gives the result that encrypting plaintext with one DES key followed by encrypting it with a second DES key is no more secure than using a…
The correct answer is B. Meet-in-the-middle attack. See the full explanation below for the reasoning.
Question
What is the known plaintext attack used against DES which gives the result that encrypting plaintext with one DES key followed by encrypting it with a second DES key is no more secure than using a single key?
Options
- AMan-in-the-middle attack
- BMeet-in-the-middle attack
- CReplay attack
- DTraffic analysis attack
How the community answered
(45 responses)- A16% (7)
- B71% (32)
- C4% (2)
- D9% (4)
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