[fprint] New fingerprint reader: 08ff:1680 AuthenTec, Inc.

[Petr Dlouhý]

Hello,

by good luck, I found out, the way, how to transmit the data from the
fingerprint reader unencrypted. I was able assemble a file, which has
clear bitmap-like data - see [1, 2].

When you open the file in Gimp or other bitmap editor, you can clearly see
header (to byte 43) and footers (from byte 555) with some kind of
additional data (that might be also interesting), between them is 512
bytes of the fingerprint bitmap. That is, how it appears to me.

Although, I was not able to make a result with fingerprint clearly visible.

What is your opinion about this file? Do you think, that it is a real
fingerprint data? How is it encoded?

[1] http://www.uloz.to/8370560/data-unencrypted1-pgm
[2] http://www.uloz.to/8370757/data-uncrypted-data-clearly-visible-pgm

Dne Mon, 21 Mar 2011 00:34:30 +0100 Petr Dlouhý <petr.dlouhy at email.cz>
napsal(a):

> Hi,
> Now I realized some new facts about the fingerprint data. The header  
> "4954
> 020d" is repeated (even longer sequence is repeated) every 1196 bytes in
> the stream.
> This could actually mean, that the transfer in fact consist of strips. I
> tried to assemble PGM image from the strip, but I didn't find any
> structure in the data.
> Any suggestions?


-- 
Petr Dlouhý