log_2(7776^6)=77.5 bits of strength. Not too bad, but I wouldn't use it for anything cryptographic with local attack potential. If you want phrases to work pro

log_2(7776^6)=77.5 bits of strength. Not too bad, but I wouldn't use it for anything cryptographic with local attack potential. If you want phrases to work properly, just put 1 (or many) non-dictionary word in them. This means the attack has to go to an alphabetic one instead of a phrase one, making it _much_ more painful.