Hi,

I use (maybe expired) telephone cards. All of them have an unique serial
number and the cost is virtually zero. Of course, a fingerprint scanner is
far better (finger is always at hand and normally it won't be forgotten at
home nor stolen), however, the costs... But I have heard about a cheaper
one with some interface. I don't know any more exactly...

Imre


On Thu, 5 Nov 1998, Ryan David Pogge wrote:

> yes, I have one of these. never thought of interfaceing to a PIC though.
> It is very cool though, it can read your print at almost any angle.
> you can put your finger to the window sideways, upside down, at an angle,
> and it still reads it correctly.  I think the complicated part of the
> system is the software though...i dont see how a PIC could run the
> nessasary software.  I do know that to get the developers kit for it costs
> about 1000 dollars if i remember correctly.  I think a more interesting
> idea is an ibutton, I think i have seen something about hooking them to
> PIC's or AVR's or something already. another thought....how much
> of your system resources the scanner takes?, it took about 6% of my system
> resources on a PII 450 128meg.... I just dont like the idea of the
> software running in the background. Plus all it does is replace the
> windows logon with a new promp for you fingerprint. I found a way to get
> past it already....add a new device to the system....when windows finds it
> at startup ittries to install it befor the password prompt comes up and
> then the software gets confused and doesnt ask for the print until after
> you restart????? that seems way to easy to get past... If you used an
> ibetton or smart card based device you could probably controll even
> turning the power on.  I was thinking of building a 16F84 based device
> that sits in a drive bay, and reads a 12c508 device based card. The device
> could prevent the computer fron even being powered on unless the proper
> card was inserted and checked for a code stored on the 508. I have to
> figure out how to implement this now...so if anyone has ideas let me know.
> Ok im off to class, sorry for the long messy rant but I just rolled out of
> bed and Im realy not awake yet...maybe I will retype this latter and only
> send the important stuff eh!
> bye
> Ryan
>
> On Wed, 4 Nov 1998, Craig Lee wrote:
>
> > I thought this might ..tickle.. a few....
> >
> > http://www.digitalpersona.com
> >
> > Anyone had opportunity to play with these yet?
> > I know they have a secure challenge protocol.
> >
> > Perhaps.....
> >
> > A PDA collection device with CDDB type data.
> > ie. Get someones fingerprint and match it to
> > a database of the fingerprint owner's data,
> > like name, address, company, webpage etc.
> >
> > I am getting a few of these to try out on a
> > system I am developing so maybe some collaborating...
> >
> >
> > Craig
> >
>
>