[jakobson14]

You don't understand how dictionary attacks work.

1) Dictionaries are TINY compared to the number of possible hashes. Something you could reasonably fit on a single hard drive in many cases. Humans really aren't that creative when it comes to choosing passwords.

2) You don't hash every entry in the dictionary on-the-fly. That's stupid. You store the hashes in a large lookup tree and compare hash-to-hash. There's basically no processing power required, especially compared to actual hashing work.