Secret key storage question

Robert J. Hansen rjhansen at
Wed Jun 19 01:46:02 CEST 2002

> Also, doing the math, I get the following for the suggested longest
> passphrase length (maybe you can point out what I've got wrong):

Provided the passphrase is totally random, then yes, a 20-glyph passphrase
would be about right.  If your passphrase is English, you're looking at 1.3
bits of entropy per glyph, or a 100-glyph passphrase.

Entropy estimation is hard.

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