Irregular Expressions

Mar 11 2012   11:53PM GMT

Passphrase Security

Dan O'Connor Dan O'Connor Profile: Dan O'Connor

How do you like them apples, well these apples.

This is the first analysis of passphrase security I have come across.  The short version is that there is insufficient entropy English to provide a system to resist offline attacks >30 bits.  My thought on what I recommend is something with a bit of gibberish in the middle or at multiple points, but that starts to slide back to the realm of having users remember impossible passwords again.

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