A_foot_in_the_door
Our access control system implements the best of the best!
It accepts only MIFARE Ultralight AES cards Cards keys are diversified with a secure CMAC-based KDF as defined in AN10922 Reader nonces are generated with an ADC-based TRNG Level2: A test card is available with the reader. The card might contain more than one flag. Have a look while the door is open...
Ultralight AES docs: https://www.nxp.com/products/MF0AESx20
For RFID challenges, ask us a Proxmark3 RDV4. You can reflash its main firmware if needed but NEVER reflash the BOOTROM!! And firstly, make sure ModemManager is NOT running on your Linux.
The code repository and documentation are on https://github.com/RfidResearchGroup/proxmark3.
PLEASE DON'T ATTEMPT TO OPEN THE BOX! This is an RFID challenge, not an anti-tampering challenge ;)
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