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Digital Forensics in Small Devices: RFID Tag Investigation

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software (see Appendix 4) that can read and write the tag data from the <strong>RFID</strong> scanner<br />

to the BIS SQL 2005 Server (vice versa) will be developed, so as the Tripwire for<br />

Servers (version 4.8), and the Tripwire Manager (version 4.8.0.246) that allows to<br />

manage Tripwire for Servers from a central location <strong>in</strong> graphical user <strong>in</strong>terface (GUI)<br />

mode will also be <strong>in</strong>stalled on the POS test-station (see Appendix 5 for Tripwire<br />

setup, and Appendix 9 for TEST-STATION <strong>in</strong>formation <strong>in</strong> detail).<br />

Figure 3.11: Test-Station Setup (Fake tag is read by the <strong>RFID</strong> reader)<br />

Accord<strong>in</strong>g to the experimental requirement, only two (one real and one poisoned)<br />

<strong>RFID</strong> Read/Write tags will be applied <strong>in</strong> a stabilized BS. These <strong>RFID</strong> tags are EPC<br />

Gen 2/ 18000-6B standards and operate <strong>in</strong> the frequency range of 860MHz to<br />

960MHz (see Table 2.2 <strong>in</strong> Section 2.1.4). The size of the user memory is 1728 bit<br />

(216 bytes) and 64 bits ID size, accord<strong>in</strong>g to the <strong>in</strong>formation sheet provided by the<br />

<strong>RFID</strong> tag manufacturer, SkyeTek.<br />

In addition, the two databases will be created <strong>in</strong> the backend database SQL<br />

Server. The primary data file named <strong>RFID</strong>_test.mdf is used for stor<strong>in</strong>g stock item (SI)<br />

values accord<strong>in</strong>g the <strong>RFID</strong> tags. Likewise, the transaction log file named<br />

<strong>RFID</strong>_test_log.ldf is used for stor<strong>in</strong>g the reader logs to the backend SQL Server.<br />

Then, all the fictitious product values and tag IDs will be pre-keyed <strong>in</strong>to the<br />

database files (see Appendix 7). For <strong>in</strong>stance, the <strong>in</strong>sertion of the fictitious values <strong>in</strong>to<br />

the primary data and log files are as follows.<br />

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