2016-05-24 18:31:01 +00:00
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#!/usr/bin/env python2
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2014-10-23 16:09:41 +00:00
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import hashlib
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import os
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import subprocess
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import ecdsa
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from binascii import hexlify, unhexlify
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print 'master secret:',
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h = raw_input()
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if h:
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h = unhexlify(h)
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else:
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h = hashlib.sha256(os.urandom(1024)).digest()
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print
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print 'master secret:', hexlify(h)
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print
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for i in range(1, 6):
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se = hashlib.sha256(h + chr(i)).hexdigest()
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print 'seckey', i, ':', se
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sk = ecdsa.SigningKey.from_secret_exponent(secexp = int(se, 16), curve=ecdsa.curves.SECP256k1, hashfunc=hashlib.sha256)
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print 'pubkey', i, ':', '04' + hexlify(sk.get_verifying_key().to_string())
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print sk.to_pem()
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p = subprocess.Popen('ssss-split -t 3 -n 5 -x'.split(' '), stdin = subprocess.PIPE)
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p.communicate(input = hexlify(h) + '\n')
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# to recover use:
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# $ ssss-combine -t 3 -x
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