3 ms·
Nobody uses that sort of "dumb tag" RFID for building access purposes. For instance, the HID access cards use a challenge/response authentication with nonces. [
by jevinskie 14y ago
Nobody uses that sort of "dumb tag" RFID for building access purposes. For instance, the HID access cards use a challenge/response authentication with nonces. [0]
[0]: http://static.usenix.org/event/woot11/tech/final_files/Garcia.pdf http://static.usenix.org/event/woot11/tech/final_files/Garci...
- dccoolgai 14y agoThanks for sharing that. Wouldn't it still be cheaper to implement with software (and potentially more flexible) than with an integrated circuit?
- alexchamberlain 14y agoHow? It's a challenge/response protocol with the processing on the NFC chip/card/object.