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Sam-Hall / NFC-HID-Emulate

Listens for an NFC tag, returning the serial number as a series of key strokes
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7byte UID Mifare Classic authentication weirdness #1

Open Sam-Hall opened 9 years ago

Sam-Hall commented 9 years ago

It seems when PICC_CMD_MFC_AUTH fails once on a 7byte Mifare Classic card, it's game over.

Subsequent PICC_CMD_MFC_AUTH attempts are always returning "63 00" code from the reader even when the correct keys are used.

4byte Mifare cards don't exhibit this behavior, it may be a bug in the actual ACR122U.