PM3 Commands Reference (Iceman Firmware):

Main Help

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Current command:
hf legic crc --help

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Calculates the legic crc8/crc16 on the given data

usage:
    hf legic crc [-h] -d <hex> [--mcc <hex>] [-t <dec>]

options:
    -h, --help                     This help
    -d, --data <hex>               bytes to calculate crc over
    --mcc <hex>                    MCC hex byte (UID CRC)
    -t, --type <dec>               CRC Type (default: 8)

examples/notes:
    hf legic crc -d deadbeef1122
    hf legic crc -d deadbeef1122 --mcc 9A -t 16         -> CRC Type 16