Classic Electronics Smart 4F Especificaciones descargar pdf (Pagina 21)

Smart Cards Lab COMPGA12 University College London

Here we will implement only the ﬁrst step.

GET CHALLENGE

CLA INS P1 P2 Le

00 84 00 00 08

Where Le is the length of the expected answer, which is 64 bits.

The answer will be a 64-bit random:

We will stop the exploration ’by hand’ here, one now needs to compute

the correct cryptogram.

11.2 Basic Access Control with rﬁdiot

With rﬁdiot, the full Basic Access Control is implemented, and with the

MRZ of the passport, it is possible to read the ﬁles inside.

Please type in the second line of the MRZ (Machine Readable Zone)

of your passport (all the second line, including the eventual ¡¡¡¡¡¡¡ signs and

the last two characters):

Now type (adding quotation marks to the MRZ):

cd C:\Program Files\rfidiot

mrpkey.py -r0

” ”

This program displays all the info contained in the passport.

Remark: if we execute it with -d option, it also displays all the crypto-

graphic computations.

11.3 Better Software

Much better software, with a graphical interface was very recently released,

see http://sites.uclouvain.be/security/epassport.html.

Under windows it can sometimes be launched directly from the disk

provided for students. Launch ePassportViewer.exe.

Remark: Both this program, and rﬁdiot can produce very good log ﬁles

with all cryptographic computations detailed.

Nicolas T. Courtois 2009-10

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Classic Electronics Smart 4F Especificaciones Pagina 21