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Min-entropy

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Definition Edit

Min-entropy is

[a] measure of the difficulty that an attacker has to guess the most commonly chosen password used in a system. Entropy often is stated in bits. When a password has n-bits of min-entropy then an attacker requires as many trials to find a user with that password as is needed to guess an n-bit random quantity. The attacker is assumed to know the most commonly used password(s).[1]

References Edit

  1. NIST Special Publication 800-63. at 6.

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