[TYPO3] Frontend Users - case sensitive password

[Alexander Urbanec]

Hi!

For a customer I have to disable case-sensitive passwords for front-end 
login. I did a little search and a good looking place to change this 
seemed to be \typo3\sysext\cms\tbl_cms.php --> inserting "lower" into 
'eval' => 'nospace,required,password' within the password configuration, 
but it doesn’t seem to work.

Is there any other option/place for configuring this or do I have to 
insert a tolowercase-call (or whatever this is in php, shouldnt be a 
problem) anywhere myself in the code? Any hints?

Greets,
Alex