Thanks to Kris on our Google+ page for showing us this handy tool.
“How Big is Your Haystack?" from Gibson Research Corporation.
Every password you use can be thought of as a needle hiding in a haystack. After all searches of common passwords and dictionaries have failed, an attacker must resort to a “brute force” search – ultimately trying every possible combination of letters, numbers and then symbols until the combination you chose, is discovered.
If every possible password is tried, sooner or later yours will be found.
The question is: Will that be too soon … or enough later?
This interactive brute force search space calculator allows you to experiment with password length and composition to develop an accurate and quantified sense for the safety of using passwords that can only be found through exhaustive search. Please see the discussion below for additional information.
All you have to do is plug your password into the field and it gives you a breakdown on some interesting stuff. You’ll most likely be interested in seeing how fast it would be possible to crack your password.
Give it a shot.