Differential D3759 Diff 10558 share/rpcauth/rpcauth.py

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share/rpcauth/rpcauth.py

	#!/usr/bin/env python3			#!/usr/bin/env python3
	# Copyright (c) 2015-2017 The Bitcoin Core developers			# Copyright (c) 2015-2017 The Bitcoin Core developers
	# Distributed under the MIT software license, see the accompanying			# Distributed under the MIT software license, see the accompanying
	# file COPYING or http://www.opensource.org/licenses/mit-license.php.			# file COPYING or http://www.opensource.org/licenses/mit-license.php.

	import sys
	import os
	from random import SystemRandom
	import base64			import base64
	import hmac			import hmac
				import os
				from random import SystemRandom
				import sys


				def generate_salt():
				# This uses os.urandom() underneath
				cryptogen = SystemRandom()

				# Create 16 byte hex salt
				salt_sequence = [cryptogen.randrange(256) for _ in range(16)]
				return ''.join([format(r, 'x') for r in salt_sequence])


				def generate_password(salt):
				"""Create 32 byte b64 password"""
				password = base64.urlsafe_b64encode(os.urandom(32)).decode('utf-8')

				m = hmac.new(bytearray(salt, 'utf-8'),
				bytearray(password, 'utf-8'), 'SHA256')
				password_hmac = m.hexdigest()

				return password, password_hmac


				def main():
	if len(sys.argv) < 2:			if len(sys.argv) < 2:
	sys.stderr.write('Please include username as an argument.\n')			sys.stderr.write('Please include username as an argument.\n')
	sys.exit(0)			sys.exit(0)

	username = sys.argv[1]			username = sys.argv[1]

	# This uses os.urandom() underneath			salt = generate_salt()
	cryptogen = SystemRandom()			password, password_hmac = generate_password(salt)

	# Create 16 byte hex salt			print('String to be appended to bitcoin.conf:')
	salt_sequence = [cryptogen.randrange(256) for i in range(16)]			print('rpcauth={0}:{1}${2}'.format(username, salt, password_hmac))
	hexseq = list(map(hex, salt_sequence))			print('Your password:\n{0}'.format(password))
	salt = "".join([x[2:] for x in hexseq])

	# Create 32 byte b64 password			if __name__ == '__main__':
	password = base64.urlsafe_b64encode(os.urandom(32)).decode("utf-8")			main()

	m = hmac.new(bytearray(salt, 'utf-8'), bytearray(password, 'utf-8'), "SHA256")
	result = m.hexdigest()

	print("String to be appended to bitcoin.conf:")
	print("rpcauth=" + username + ":" + salt + "$" + result)
	print("Your password:\n" + password)