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| #!/usr/bin/env python2 | |
| # Copyright (c) 2015-2016 The Bitcoin Core developers | |
| # Distributed under the MIT software license, see the accompanying | |
| # file COPYING or http://www.opensource.org/licenses/mit-license.php. | |
| import hashlib | |
| import sys | |
| import os | |
| from random import SystemRandom | |
| import base64 | |
| import hmac | |
| if len(sys.argv) < 2: | |
| sys.stderr.write('Please include username as an argument.\n') | |
| sys.exit(0) | |
| username = sys.argv[1] | |
| #This uses os.urandom() underneath | |
| cryptogen = SystemRandom() | |
| #Create 16 byte hex salt | |
| salt_sequence = [cryptogen.randrange(256) for i in range(16)] | |
| hexseq = list(map(hex, salt_sequence)) | |
| salt = "".join([x[2:] for x in hexseq]) | |
| #Create 32 byte b64 password | |
| password = base64.urlsafe_b64encode(os.urandom(32)) | |
| digestmod = hashlib.sha256 | |
| if sys.version_info.major >= 3: | |
| password = password.decode('utf-8') | |
| digestmod = 'SHA256' | |
| m = hmac.new(bytearray(salt, 'utf-8'), bytearray(password, 'utf-8'), digestmod) | |
| result = m.hexdigest() | |
| print("String to be appended to bitcoin.conf:") | |
| print("rpcauth="+username+":"+salt+"$"+result) | |
| print("Your password:\n"+password) |