DotPass Passwords [for Mac]

This is a utility for generating and retrieving passwords. It lets you enter a graphical pattern using a 4×4 dot grid and a plain text seed word (like "facebook", "work email" or whatever makes sense to you), and then generates a password based on this unique combination. The idea is that these patterns and the plain seed words are much easier to remember than a good "random"-looking password.

As long as you enter the same pattern and seed word the generator will always output the same password. But any change in either results in a completely different password. So you can decide on one pattern and reuse together with different seed words for different accounts, and get good different passwords for each account. As long as you remember the pattern you've chosen and the plain text seed words for your accounts, you can get your passwords back. But unlike other solutions your passwords are never stored on your device or sent over the net.

There is also an iOS version of this app available in the App store allowing you to access the same passwords on your iPhone or iPad.

To make these passwords secure you must of course keep your pattern and seed words secret, just as you would with your password. If you are worried about someone looking over your shoulder you can use the privacy settings in the app to hide the pattern after entry, or automatically quit and remove any copied passwords from the pasteboard after a while.

For a more in-depth security discussion go to
http://www.lostminds.com/dotpass-mac