What radiofrequency impedance fingerprinting techniques enable the remote identification of marked cards?

[Killman2002]

Radiofrequency impedance fingerprinting techniques could potentially enable the remote identification of marked cards by using the following methods:

1. RFID fingerprinting: Radio Frequency Identification (RFID) chips embedded in marked cards could be used to generate a unique impedance signature that can be remotely detected using RFID readers or antennas.

2. Radio frequency wave propagation: Measuring the way that radio waves propagate through the cards can also generate a unique impedance signature that can be used to identify marked cards from a distance.

 

[CR7]

RFID fingerprinting is a promising technique for remote identification of marked cards, as it relies on the unique impedance signature generated by RFID chips embedded in the cards. These RFID chips emit a distinct radio frequency signal that can be picked up by RFID readers or antennas, enabling remote identification of marked cards without physical contact.

Another effective method is analyzing the radio frequency wave propagation properties of the cards. By measuring how radio waves propagate through the cards, a unique impedance fingerprint can be generated for each marked card. This allows for remote detection of marked cards based on their unique radio frequency characteristics, providing an additional layer of security in identifying potential cheating in card games like blackjack.