I could help you a bit.

As a part of my master thesis I made an ldap-aware version of fingerprint
authentication. This way, the prints (actually the minutiae data) is stored
in LDAP, as a base64 string. The SLAPI plugin, intercepting simple binds,
and using password (which should be base64-encoded minutiae data from the
control scan) for bozorth3 authentication.

I also hacked the pam_ldap module to use data from scan to authenticate
users.

So what I have in hands, is a centralized authentication (not
identification) solution. I could share it if you like, although it is, of
coures buggy.

If you target identification, you could rewrite the SLAPI part to search the
catalog for best matching fingerprint, which I am pretty sure can be done.
However, you might run into difficulties to have to iterate the entire
directory every time, since it is pretty hard to build a working search
index for the prints.

You would probably need to perform quite a bit of  "surgery" for libfprint,
break the abstraction it provides and take the necessary internal stuff. For
the server anyway.

Regards,
Andrey

On Tue, Mar 31, 2009 at 5:44 PM, Paolo Arnaldo Dallari <
[email protected]> wrote:

> Hi 2 all,
> I'm a Italian programmer who is trying to develop a software
> for identify different people accessing multiple places.
> For legal reasons I'm making a Client - Server mechanism;
> i cannot store in every client all the people's finger database:
> A User scan his finger on the client, the client send the fingerprint
> to the server where fingerprints are stored and the Server must
> Identify the User then reply to the Client something like: Hello %USER%
> or Access Denied.
>
> Well I'm having some troubles in implementing an identification
> mechanism on the server without the need to do a scan,
> It seems to me that fp_identify_finger need in Any case
> to light up the scan device and scan the finger. Am I Wrong?
>
> There is some method to use the algoritm of identification
> giving only the gallery and the freshly scanned finger without a scan?
>
> Must I edit the core code directly?
> (For semplify my life I'm using pyfprint; So I hope not to have to do :-D )
>
> Thank You for any help, and for the nice library!
>
> Greetings!
> Pad
>
> _______________________________________________
> fprint mailing list
> [email protected]
> http://lists.reactivated.net/mailman/listinfo/fprint
>
>
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