[rt-users] Encryption method creating users

[Jason B.]

Hello,

I am developing a control panel for our support team and I want to be  
able to use the same username and password that RT is using.  I am  
running RT 3.4 with a MySQL backend.  I am going to write the control  
panel in PHP though my question is does anyone know what encryption  
method is being used when authenticating/creating new RT users?

I thought it would be md5sum though I dont see any special characters.

Thanks,
Jason B.