Re: Speaker verification in gdm

[Malcolm Tredinnick <malcolm commsecure com au>]

On Sun, May 20, 2001 at 11:55:30PM -0400, Jean-Marc Valin wrote:
> I don't know PAM, but I suppose I'll need a couple non-standard things, like
> prompting (sending a wav?) the user and/or waiting for a certain key to be
> pressed before recording. I don't know PAM at all, so I don't know whether it
> would do the job.

This is exactly why you do want PAM. :-)

The whole idea (warning: broad brush strokes, read the documentation and
the web for details) is that your Pluggable Authentication Module is
called for certain types of access (in this case gdm login). You do
whatever magic you need to work out whether the user is authorised or
not. That is really all the calling process cares about -- yes or no. So
all the stuff that is "special" to your sound authentication method
(which sounds pretty cool, btw) is encapsulated in the PAM.

Cheers,
Malcolm

-- 
Tolkien is hobbit-forming.