From: Marek Isalski (Marek.Isalski@smuht.nwest.nhs.uk)
Date: Fri Jan 20 2006 - 03:24:24 EST
> Next step is to determine how many bits of entropy (B) are in each
> character and the length of the password can be calculated:
>
> L = log(S)/B
For secure passphrases, using things like www.diceware.com might be a consideration. It does away with per-letter entropy calculations and lets you securely build a passphrase with an almost precisely known entropy.
Regards,
Marek
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