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 <[email protected]> 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 _______________________________________________ fprint mailing list [email protected] http://lists.reactivated.net/mailman/listinfo/fprint
