35 lines
786 B
Python
35 lines
786 B
Python
# standard imports
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import logging
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import sys
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# external imports
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import sha3
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logging.basicConfig(level=logging.WARNING)
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#logging.basicConfig(level=logging.DEBUG)
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logg = logging.getLogger()
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def main():
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if __name__ == '__main__':
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f = open(sys.argv[1], 'r')
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z = b''
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for i in range(32):
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z += b'\x00'
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while True:
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l = f.readline().rstrip()
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if l == '':
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break
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logg.debug('line {}'.format(l))
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h = sha3.keccak_256()
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h.update(l.encode('utf-8'))
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r = h.digest()
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z = bytes([a ^ b for a, b in zip(r, z)])
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logg.debug('{} -> {}'.format(r.hex(), z.hex()))
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f.close()
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print(z[:4].hex())
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if __name__ == '__main__':
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main()
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