Password Aging

I've been asked to incorporate password aging into our
mediawiki
installation.  I can't find anything at the Mediawiki site. 
Is there an
extension for password aging or has anyone done direct SQL
calls to age
passwords?

-Jim

_______________________________________________
MediaWiki-l mailing list
MediaWiki-lWikimedia.org
http://mail.wikipedia.org/mailman/listinfo/mediawiki-l