1#!/usr/bin/env python2 2# Copyright (c) 2015 The Bitcoin Core developers 3# Distributed under the MIT software license, see the accompanying 4# file COPYING or http://www.opensource.org/licenses/mit-license.php. 5 6import hashlib 7import sys 8import os 9from random import SystemRandom 10import base64 11import hmac 12 13if len(sys.argv) < 2: 14 sys.stderr.write('Please include username as an argument.\n') 15 sys.exit(0) 16 17username = sys.argv[1] 18 19#This uses os.urandom() underneath 20cryptogen = SystemRandom() 21 22#Create 16 byte hex salt 23salt_sequence = [cryptogen.randrange(256) for i in range(16)] 24hexseq = list(map(hex, salt_sequence)) 25salt = "".join([x[2:] for x in hexseq]) 26 27#Create 32 byte b64 password 28password = base64.urlsafe_b64encode(os.urandom(32)) 29 30digestmod = hashlib.sha256 31 32if sys.version_info.major >= 3: 33 password = password.decode('utf-8') 34 digestmod = 'SHA256' 35 36m = hmac.new(bytearray(salt, 'utf-8'), bytearray(password, 'utf-8'), digestmod) 37result = m.hexdigest() 38 39print("String to be appended to bitcoin.conf:") 40print("rpcauth="+username+":"+salt+"$"+result) 41print("Your password:\n"+password) 42