[ryanisnan]

This kind of assumes that you're trying to crack a password with the operating assumption that words are indeed not used, that every character is random, and that you wouldn't use some sort of word library to construct passwords.

[anonymouz]

No, it doesn't. It assume that you know exactly that the password is a Diceware password. The standard word list has 7776 entries, giving 7776^6 ~ 2.2*10^23 combinations for a 6 word passphrase.