A security technician wants to improve the strength of a weak key by making it more secure
against brute force attacks. Which of the following would achieve this?
A.
Blowfish
B.
Key stretching
C.
Key escrow
D.
Recovery agent
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Key stretching?
https://en.wikipedia.org/wiki/Key_stretching
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The correct answer is B.
Key stretching is the process used to take a key that might be a bit weak and make it stronger.
Blowfish is an encryption system.
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I would go for B, but I understand why they may have preferred A as the correct answer. Bcrypt is a hash, designed to be much slower than other hashes like MD5 and SHA and slow down hackers creating rainbow table attacks. Bcrypt is based in Blowfish cipher.
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