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jacopo-j/CRC-8_MIFARE-MAD.py

Created February 18, 2020 10:00
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Algorithm for calculating CRC-8 checksum for MIFARE Application Directory (MAD)
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CRC-8_MIFARE-MAD.py
def checksum(data):
crc = 0xc7
for byte in data:
crc ^= byte
for _ in range(8):
msb = crc & 0x80
crc = (crc << 1) & 0xff
if msb:
crc ^= 0x1d
return bytes([crc])
@ZeroOne010101
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Thank you very much, good sir!

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