SaferWep helps you improve the security of your Airport base station by making it easy to change your WEP key periodically. It includes a program that will update your base station for you and a program that will display the current key. Source code is available under the GPL.
What's new in SaferWep
Version 0.3 adds the following:
The Java client can now be configured to display either 104- or 40-bit keys
The Java client can now be configured to display in a GUI or to stdout