We investigate a technique for counterfeit detection of radio-frequency identification cards based on the electromagnetic characteristics of the cards rather than the digital information that they transmit. We describe a method of measuring the electromagnetic signature of a radio-frequency identification card and identify a set of features useful for classifying radiofrequency identification cards. Furthermore, we show that our measurements indicate that the features most useful for distinguishing cards are contained within the reader inquiry rather than the card response, a reflection of the near-field nature of the radio-frequency identification transactions in ISO 14443.
Citation: IEEE Transactions on Microwave Theory and Techniques
Pub Type: Journals
Authentication, Radio-Frequency Identification, Electromagnetic Signatures