What is the minimum length for a keystore encryption passphrase?

What is the minimum length for a keystore encryption passphrase?

• A. Passphrase must be at least 8 characters
• B. Passphrase must be exactly 8 characters
• C. Passphrase must be at least 12 characters
• D. No minimum length requirement

Answer: (A)

The idea being tested is the minimum length required to make a keystore encryption passphrase adequately resistant to guessing. Requiring a minimum length helps ensure there’s enough entropy in the passphrase so brute-force attempts take longer. In this context, eight characters is the baseline that the policy enforces: the passphrase must be at least eight characters long, but can be longer for enhanced security. It isn’t about forcing an exact length, and it isn’t requiring a longer minimum like twelve, nor does it say there’s no minimum at all. So the correct stance is that the passphrase must be at least eight characters long.

The idea being tested is the minimum length required to make a keystore encryption passphrase adequately resistant to guessing. Requiring a minimum length helps ensure there’s enough entropy in the passphrase so brute-force attempts take longer. In this context, eight characters is the baseline that the policy enforces: the passphrase must be at least eight characters long, but can be longer for enhanced security. It isn’t about forcing an exact length, and it isn’t requiring a longer minimum like twelve, nor does it say there’s no minimum at all. So the correct stance is that the passphrase must be at least eight characters long.