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Radio frequency fingerprinting to detect fraudulent radio frequency identification tags

  • US 20060181394A1
  • Filed: 01/28/2005
  • Published: 08/17/2006
  • Est. Priority Date: 01/28/2005
  • Status: Abandoned Application
First Claim
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1. A method of authenticating the identity of an RFID device comprising the steps of:

  • providing an RFID device having a tag identifier stored therein;

    recording the tag identifier for the RFID device along with an RF fingerprint for the RFID device;

    interrogating an RFID device;

    receiving a response from the interrogated RFID device;

    determining an RF fingerprint for the received response; and

    comparing the RF fingerprint associated with the received response to the RF fingerprint recorded with the tag identifier of the RFID device.

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