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SSCP Exam - Question 132


Brute force attacks against encryption keys have increased in potency because of increased computing power. Which of the following is often considered a good protection against the brute force cryptography attack?

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Correct Answer: B

To protect against brute force attacks on encryption keys, the use of session keys is often considered a good solution. A session key is a temporary encryption key used for a single session of communication. By changing the key regularly with each session, even if one key is compromised through a brute force attack, the attacker gains access to only a small fraction of the encrypted data. This makes it extremely impractical for attackers to break each key within the limited time frame of a session. In contrast, good key generators are essential but they alone do not prevent brute force attacks, and no algorithm is currently immune to such attacks. Therefore, the strategic use of session keys provides practical and effective protection.

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e098e9c
Oct 10, 2024

Someone please give me clarity on this. Wouldnt the use of good key generators be good protection against brute force? Hypothetically if you had session keys but a weak key generator, it is still prone to a brute force attack (maybe even more prone with a poor key generator) and be compromised mid session. Just a thought, please feel free to help my thinking here