ACG HF Multi ISO RFID Reader - RFID Webshop
ACG HF Multi ISO RFID Reader - RFID Webshop
ACG HF Multi ISO RFID Reader - RFID Webshop
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<strong>ACG</strong> <strong>HF</strong> <strong>Multi</strong> <strong>ISO</strong> <strong>RFID</strong> <strong>Reader</strong> V1.0<br />
13.6.3 Create a value file<br />
Basically, each application is created in the same way. The access rights of an<br />
application can be adjusted to freeze the application organization. In this case, a<br />
login to the application is needed to make any changes to the application.<br />
Regardless of the application access rights, a file can be selected using its ID. Before<br />
accessing a secured file, a login to the application is needed. A successful login<br />
allows changing all the files in the application that use the same key.<br />
A value file has a special structure. If a value file is changed the changes are only<br />
accepted after a commit transaction command. This feature allows modifying several<br />
files of an application and changing all the contents at the same time.<br />
The following example illustrates the creation of a value file using DES encipher.<br />
Command<br />
s<br />
f1200000000000000000000000000<br />
0000000000<br />
Answer<br />
04E10E00000000<br />
activate card<br />
L<br />
login to application 0<br />
f06050000110F01 00<br />
create application with ID 000011<br />
f0408000011 00<br />
select application with ID 000011<br />
f12110003000000000000FFFFFF<br />
7Ff5555555500<br />
00<br />
create value file with initial value<br />
55555555 with ID 00. File is secured<br />
with DES encipher<br />
Figure 13-4: Create a plain standard data file on a DESFire card<br />
<strong>ACG</strong> Identification Technologies GmbH 125
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