Extension:EnforceStrongPassword

What can this extension do?
This extension lets you set additional requirements for passwords. (1 number, 1 capital, 1 'normal' letter etc.)

Usage
Note that all passwords are checked, also the ones your users will use to login. If you have users in place that already have a password set that does NOT meet the requirements, they will be unable to login. You might want to change the MediaWiki:Passwordtooshort message to reflect the additional password requirements.

Changes to LocalSettings.php
Add this:

Code
Save this in: extensions/StrongPassword.php