219 lines
9.6 KiB
Python
219 lines
9.6 KiB
Python
from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from __future__ import unicode_literals
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import six
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import unittest
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import sys
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from ecdsa.util import number_to_string
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from lib.bitcoin import (
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generator_secp256k1, point_to_ser, public_key_to_p2pkh, EC_KEY,
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bip32_root, bip32_public_derivation, bip32_private_derivation, pw_encode,
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pw_decode, Hash, public_key_from_private_key, address_from_private_key,
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is_address, is_private_key, xpub_from_xprv, is_new_seed, is_old_seed,
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var_int, op_push, address_to_script)
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from lib.util import bfh
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try:
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import ecdsa
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except ImportError:
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sys.exit("Error: python-ecdsa does not seem to be installed. Try 'sudo pip install ecdsa'")
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class Test_bitcoin(unittest.TestCase):
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def test_crypto(self):
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for message in [b"Chancellor on brink of second bailout for banks", b'\xff'*512]:
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self._do_test_crypto(message)
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def _do_test_crypto(self, message):
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G = generator_secp256k1
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_r = G.order()
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pvk = ecdsa.util.randrange( pow(2,256) ) %_r
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Pub = pvk*G
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pubkey_c = point_to_ser(Pub,True)
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#pubkey_u = point_to_ser(Pub,False)
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addr_c = public_key_to_p2pkh(pubkey_c)
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#print "Private key ", '%064x'%pvk
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eck = EC_KEY(number_to_string(pvk,_r))
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#print "Compressed public key ", pubkey_c.encode('hex')
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enc = EC_KEY.encrypt_message(message, pubkey_c)
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dec = eck.decrypt_message(enc)
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assert dec == message
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#print "Uncompressed public key", pubkey_u.encode('hex')
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#enc2 = EC_KEY.encrypt_message(message, pubkey_u)
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dec2 = eck.decrypt_message(enc)
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assert dec2 == message
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signature = eck.sign_message(message, True)
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#print signature
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EC_KEY.verify_message(eck, signature, message)
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def test_bip32(self):
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# see https://en.bitcoin.it/wiki/BIP_0032_TestVectors
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xpub, xprv = self._do_test_bip32("000102030405060708090a0b0c0d0e0f", "m/0'/1/2'/2/1000000000")
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assert xpub == "xpub6H1LXWLaKsWFhvm6RVpEL9P4KfRZSW7abD2ttkWP3SSQvnyA8FSVqNTEcYFgJS2UaFcxupHiYkro49S8yGasTvXEYBVPamhGW6cFJodrTHy"
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assert xprv == "xprvA41z7zogVVwxVSgdKUHDy1SKmdb533PjDz7J6N6mV6uS3ze1ai8FHa8kmHScGpWmj4WggLyQjgPie1rFSruoUihUZREPSL39UNdE3BBDu76"
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xpub, xprv = self._do_test_bip32("fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a29f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542","m/0/2147483647'/1/2147483646'/2")
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assert xpub == "xpub6FnCn6nSzZAw5Tw7cgR9bi15UV96gLZhjDstkXXxvCLsUXBGXPdSnLFbdpq8p9HmGsApME5hQTZ3emM2rnY5agb9rXpVGyy3bdW6EEgAtqt"
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assert xprv == "xprvA2nrNbFZABcdryreWet9Ea4LvTJcGsqrMzxHx98MMrotbir7yrKCEXw7nadnHM8Dq38EGfSh6dqA9QWTyefMLEcBYJUuekgW4BYPJcr9E7j"
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def _do_test_bip32(self, seed, sequence):
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xprv, xpub = bip32_root(bfh(seed), 'standard')
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assert sequence[0:2] == "m/"
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path = 'm'
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sequence = sequence[2:]
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for n in sequence.split('/'):
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child_path = path + '/' + n
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if n[-1] != "'":
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xpub2 = bip32_public_derivation(xpub, path, child_path)
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xprv, xpub = bip32_private_derivation(xprv, path, child_path)
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if n[-1] != "'":
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assert xpub == xpub2
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path = child_path
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return xpub, xprv
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def test_aes_homomorphic(self):
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"""Make sure AES is homomorphic."""
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payload = u'\u66f4\u7a33\u5b9a\u7684\u4ea4\u6613\u5e73\u53f0'
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password = u'secret'
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enc = pw_encode(payload, password)
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dec = pw_decode(enc, password)
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self.assertEqual(dec, payload)
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def test_aes_encode_without_password(self):
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"""When not passed a password, pw_encode is noop on the payload."""
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payload = u'\u66f4\u7a33\u5b9a\u7684\u4ea4\u6613\u5e73\u53f0'
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enc = pw_encode(payload, None)
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self.assertEqual(payload, enc)
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def test_aes_deencode_without_password(self):
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"""When not passed a password, pw_decode is noop on the payload."""
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payload = u'\u66f4\u7a33\u5b9a\u7684\u4ea4\u6613\u5e73\u53f0'
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enc = pw_decode(payload, None)
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self.assertEqual(payload, enc)
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def test_aes_decode_with_invalid_password(self):
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"""pw_decode raises an Exception when supplied an invalid password."""
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payload = u"blah"
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password = u"uber secret"
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wrong_password = u"not the password"
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enc = pw_encode(payload, password)
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self.assertRaises(Exception, pw_decode, enc, wrong_password)
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def test_hash(self):
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"""Make sure the Hash function does sha256 twice"""
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payload = u"test"
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expected = b'\x95MZI\xfdp\xd9\xb8\xbc\xdb5\xd2R&x)\x95\x7f~\xf7\xfalt\xf8\x84\x19\xbd\xc5\xe8"\t\xf4'
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result = Hash(payload)
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self.assertEqual(expected, result)
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def test_xpub_from_xprv(self):
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"""We can derive the xpub key from a xprv."""
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# Taken from test vectors in https://en.bitcoin.it/wiki/BIP_0032_TestVectors
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xpub = "xpub6H1LXWLaKsWFhvm6RVpEL9P4KfRZSW7abD2ttkWP3SSQvnyA8FSVqNTEcYFgJS2UaFcxupHiYkro49S8yGasTvXEYBVPamhGW6cFJodrTHy"
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xprv = "xprvA41z7zogVVwxVSgdKUHDy1SKmdb533PjDz7J6N6mV6uS3ze1ai8FHa8kmHScGpWmj4WggLyQjgPie1rFSruoUihUZREPSL39UNdE3BBDu76"
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result = xpub_from_xprv(xprv)
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self.assertEqual(result, xpub)
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def test_var_int(self):
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for i in range(0xfd):
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self.assertEqual(var_int(i), "{:02x}".format(i) )
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self.assertEqual(var_int(0xfd), "fdfd00")
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self.assertEqual(var_int(0xfe), "fdfe00")
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self.assertEqual(var_int(0xff), "fdff00")
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self.assertEqual(var_int(0x1234), "fd3412")
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self.assertEqual(var_int(0xffff), "fdffff")
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self.assertEqual(var_int(0x10000), "fe00000100")
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self.assertEqual(var_int(0x12345678), "fe78563412")
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self.assertEqual(var_int(0xffffffff), "feffffffff")
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self.assertEqual(var_int(0x100000000), "ff0000000001000000")
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self.assertEqual(var_int(0x0123456789abcdef), "ffefcdab8967452301")
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def test_op_push(self):
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self.assertEqual(op_push(0x00), '00')
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self.assertEqual(op_push(0x12), '12')
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self.assertEqual(op_push(0x4b), '4b')
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self.assertEqual(op_push(0x4c), '4c4c')
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self.assertEqual(op_push(0xfe), '4cfe')
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self.assertEqual(op_push(0xff), '4dff00')
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self.assertEqual(op_push(0x100), '4d0001')
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self.assertEqual(op_push(0x1234), '4d3412')
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self.assertEqual(op_push(0xfffe), '4dfeff')
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self.assertEqual(op_push(0xffff), '4effff0000')
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self.assertEqual(op_push(0x10000), '4e00000100')
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self.assertEqual(op_push(0x12345678), '4e78563412')
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# TODO testnet addresses
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def test_address_to_script(self):
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# bech32 native segwit
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# test vectors from BIP-0173
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self.assertEqual(address_to_script('BC1QW508D6QEJXTDG4Y5R3ZARVARY0C5XW7KV8F3T4'), '0014751e76e8199196d454941c45d1b3a323f1433bd6')
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self.assertEqual(address_to_script('bc1pw508d6qejxtdg4y5r3zarvary0c5xw7kw508d6qejxtdg4y5r3zarvary0c5xw7k7grplx'), '5128751e76e8199196d454941c45d1b3a323f1433bd6751e76e8199196d454941c45d1b3a323f1433bd6')
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self.assertEqual(address_to_script('BC1SW50QA3JX3S'), '6002751e')
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self.assertEqual(address_to_script('bc1zw508d6qejxtdg4y5r3zarvaryvg6kdaj'), '5210751e76e8199196d454941c45d1b3a323')
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# base58 P2PKH
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self.assertEqual(address_to_script('14gcRovpkCoGkCNBivQBvw7eso7eiNAbxG'), '76a91428662c67561b95c79d2257d2a93d9d151c977e9188ac')
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self.assertEqual(address_to_script('1BEqfzh4Y3zzLosfGhw1AsqbEKVW6e1qHv'), '76a914704f4b81cadb7bf7e68c08cd3657220f680f863c88ac')
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# base58 P2SH
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self.assertEqual(address_to_script('35ZqQJcBQMZ1rsv8aSuJ2wkC7ohUCQMJbT'), 'a9142a84cf00d47f699ee7bbc1dea5ec1bdecb4ac15487')
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self.assertEqual(address_to_script('3PyjzJ3im7f7bcV724GR57edKDqoZvH7Ji'), 'a914f47c8954e421031ad04ecd8e7752c9479206b9d387')
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class Test_keyImport(unittest.TestCase):
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""" The keys used in this class are TEST keys from
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https://en.bitcoin.it/wiki/BIP_0032_TestVectors"""
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private_key = "L52XzL2cMkHxqxBXRyEpnPQZGUs3uKiL3R11XbAdHigRzDozKZeW"
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public_key_hex = "0339a36013301597daef41fbe593a02cc513d0b55527ec2df1050e2e8ff49c85c2"
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main_address = "15mKKb2eos1hWa6tisdPwwDC1a5J1y9nma"
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def test_public_key_from_private_key(self):
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result = public_key_from_private_key(self.private_key)
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self.assertEqual(self.public_key_hex, result)
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def test_address_from_private_key(self):
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result = address_from_private_key(self.private_key)
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self.assertEqual(self.main_address, result)
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def test_is_valid_address(self):
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self.assertTrue(is_address(self.main_address))
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self.assertFalse(is_address("not an address"))
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def test_is_private_key(self):
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self.assertTrue(is_private_key(self.private_key))
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self.assertFalse(is_private_key(self.public_key_hex))
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class Test_seeds(unittest.TestCase):
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""" Test old and new seeds. """
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def test_new_seed(self):
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seed = "cram swing cover prefer miss modify ritual silly deliver chunk behind inform able"
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self.assertTrue(is_new_seed(seed))
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seed = "cram swing cover prefer miss modify ritual silly deliver chunk behind inform"
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self.assertFalse(is_new_seed(seed))
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def test_old_seed(self):
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self.assertTrue(is_old_seed(" ".join(["like"] * 12)))
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self.assertFalse(is_old_seed(" ".join(["like"] * 18)))
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self.assertTrue(is_old_seed(" ".join(["like"] * 24)))
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self.assertFalse(is_old_seed("not a seed"))
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self.assertTrue(is_old_seed("0123456789ABCDEF" * 2))
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self.assertTrue(is_old_seed("0123456789ABCDEF" * 4))
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