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How Long Would It Take to Crack Your Password?

The strength of a randomly generated password is one number — its entropy , in bits — and it comes from a single line of arithmetic.

  • Entropy calculated by length multiplied by base-2 logarithm of pool size
  • 8-character password cracked in less than a coffee break
  • 16-character lowercase-only password has higher entropy (75.2 bits)

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