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Old 06-01-2024, 06:35 AM
retiredguy123 retiredguy123 is offline
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Quote:
Originally Posted by M2inOR View Post
Here is something that may shed some light on cloned cards.

Thereay be two sets of ID numbers. One unclonable, and the other programmable.

A Tag ID (TID) and a separate serial number.

This would use the tag ID (TID) in the transponder along with the serial number. Each RFID chip has a unique serial number that cannot be changed, which identifies the chip as unique. A serial number is then written to the tag's memory. You could read the TID and serial number and make sure there was a correct match, in order to ensure the tag was not cloned.

Imagine true security badges, credit cards, and other IDs in use today for access or spending.
There is no question that new cards could be issued that could not be cloned. But, without issuing new cards, can the new software differentiate between a valid working card and a clone?