47 lines
1.4 KiB
Python
Executable file
47 lines
1.4 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2015-2018 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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import sys
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import os
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from random import SystemRandom
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import base64
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import hmac
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def generate_salt():
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# This uses os.urandom() underneath
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cryptogen = SystemRandom()
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# Create 16 byte hex salt
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salt_sequence = [cryptogen.randrange(256) for _ in range(16)]
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return ''.join([format(r, 'x') for r in salt_sequence])
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def generate_password():
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"""Create 32 byte b64 password"""
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return base64.urlsafe_b64encode(os.urandom(32)).decode('utf-8')
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def password_to_hmac(salt, password):
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m = hmac.new(bytearray(salt, 'utf-8'), bytearray(password, 'utf-8'), 'SHA256')
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return m.hexdigest()
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def main():
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if len(sys.argv) < 2:
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sys.stderr.write('Please include username (and an optional password, will generate one if not provided) as an argument.\n')
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sys.exit(0)
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username = sys.argv[1]
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salt = generate_salt()
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if len(sys.argv) > 2:
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password = sys.argv[2]
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else:
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password = generate_password()
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password_hmac = password_to_hmac(salt, password)
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print('String to be appended to bitcoin.conf:')
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print('rpcauth={0}:{1}${2}'.format(username, salt, password_hmac))
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print('Your password:\n{0}'.format(password))
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if __name__ == '__main__':
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main()
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