[imp] encrypted login password in form

[Enrique]

Hi,
  My university uses Horde/IMP as main WebMail system for staff and 
students. I want to integrate this mail system with other tools. I know 
how to login using a hidden form. However, the examples I have seen 
expose passwords in plain text in the hidden form.

I am not the administrator of the IMP site, so I cannot test some things 
  myself experimentally. I wonder if redirect.php (or previous scrips) 
would accept md5 encrypted password data passed in the hidden form?.

redirect.php get user/pass data from a Horde::getFormData function.
Where can I find that function's code or documentation?

Any tip will be welcomed.

- Enrique Castro -