PM3 Commands Reference:

Main Help

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Current command: lf hitag crack2 --help

This command tries to recover 2048 bits of Hitag2 crypto stream data.

usage:
    lf hitag crack2 [-h] [--nrar <hex>]

options:
    -h, --help                     This help
    --nrar <hex>                   specify nonce / answer as 8 hex bytes

examples/notes:
    lf hitag crack2 --nrar 73AA5A62EAB8529C