def test_get_address_from_output_script(self):
# the inverse of this test is in test_bitcoin: test_address_to_script
addr_from_script = lambda script: transaction.get_address_from_output_script(
bfh(script))
# base58 p2pkh
self.assertEqual(
'k11X9AqNVNLqmaeX7RCqXU47hpKzB3yXm8U',
addr_from_script(
'76a91428662c67561b95c79d2257d2a93d9d151c977e9188ac'))
self.assertEqual(
'k185NR28jAC3VBG2axzNLhzqeArN2P7byuw',
addr_from_script(
'76a914704f4b81cadb7bf7e68c08cd3657220f680f863c88ac'))
# almost but not quite
self.assertEqual(
None,
addr_from_script(
'76a9130000000000000000000000000000000000000088ac'))
# base58 p2sh
self.assertEqual(
'k32QN9L3r2VbWhL54GjLda4kF4LZzb15eoN',
addr_from_script('a9142a84cf00d47f699ee7bbc1dea5ec1bdecb4ac15487'))
self.assertEqual(
'k3LpGjKVPPFhcS4e2iLhkcEegFkiKwSyU6f',
addr_from_script('a914f47c8954e421031ad04ecd8e7752c9479206b9d387'))
# almost but not quite
self.assertEqual(
None,
addr_from_script('a912f47c8954e421031ad04ecd8e7752c947920687'))
# p2pk
self.assertEqual(
None,
addr_from_script(
'210289e14468d94537493c62e2168318b568912dec0fb95609afd56f2527c2751c8bac'
))
self.assertEqual(
None,
addr_from_script(
'41045485b0b076848af1209e788c893522a90f3df77c1abac2ca545846a725e6c3da1f7743f55a1bc3b5f0c7e0ee4459954ec0307022742d60032b13432953eb7120ac'
))
# almost but not quite
self.assertEqual(
None,
addr_from_script(
'200289e14468d94537493c62e2168318b568912dec0fb95609afd56f2527c2751cac'
))
self.assertEqual(
None,
addr_from_script(
'210589e14468d94537493c62e2168318b568912dec0fb95609afd56f2527c2751c8bac'
))
def test_get_address_from_output_script(self):
# the inverse of this test is in test_bitcoin: test_address_to_script
addr_from_script = lambda script: transaction.get_address_from_output_script(
bfh(script))
ADDR = transaction.TYPE_ADDRESS
# bech32 native segwit
# test vectors from BIP-0173
self.assertEqual(
(ADDR, 'bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4'),
addr_from_script('0014751e76e8199196d454941c45d1b3a323f1433bd6'))
self.assertEqual(
(ADDR,
'bc1pw508d6qejxtdg4y5r3zarvary0c5xw7kw508d6qejxtdg4y5r3zarvary0c5xw7k7grplx'
),
addr_from_script(
'5128751e76e8199196d454941c45d1b3a323f1433bd6751e76e8199196d454941c45d1b3a323f1433bd6'
))
self.assertEqual((ADDR, 'bc1sw50qa3jx3s'),
addr_from_script('6002751e'))
self.assertEqual(
(ADDR, 'bc1zw508d6qejxtdg4y5r3zarvaryvg6kdaj'),
addr_from_script('5210751e76e8199196d454941c45d1b3a323'))
# base58 p2pkh
self.assertEqual(
(ADDR, '14gcRovpkCoGkCNBivQBvw7eso7eiNAbxG'),
addr_from_script(
'76a91428662c67561b95c79d2257d2a93d9d151c977e9188ac'))
self.assertEqual(
(ADDR, '1BEqfzh4Y3zzLosfGhw1AsqbEKVW6e1qHv'),
addr_from_script(
'76a914704f4b81cadb7bf7e68c08cd3657220f680f863c88ac'))
self.assertEqual(
(ADDR, '18u8VTYhogvwek9rUQRtHKn66Sf6a2RV5w'),
addr_from_script(
'76a91456a4c36cd1fdb71a493fec9941b69b4a7cec90ea88ac'))
# base58 p2sh
self.assertEqual(
(ADDR, '35ZqQJcBQMZ1rsv8aSuJ2wkC7ohUCQMJbT'),
addr_from_script('a9142a84cf00d47f699ee7bbc1dea5ec1bdecb4ac15487'))
self.assertEqual(
(ADDR, '3PyjzJ3im7f7bcV724GR57edKDqoZvH7Ji'),
addr_from_script('a914f47c8954e421031ad04ecd8e7752c9479206b9d387'))
def verify_tx_input(tx, i, script, sig, pub):
pub, sig, script = (binascii.unhexlify(x) for x in [pub, sig, script])
t = etr.Transaction(tx)
t.deserialize()
#to prepare for verification (to do the txhash for modtx)
#we need to have the "address" field set in the input.
typ, addr = etr.get_address_from_output_script(script)
if not typ == ebt.TYPE_ADDRESS:
#Don't support non-p2sh, non-p2pkh for now
log.debug("Invalid script")
return False
t.inputs()[i]["address"] = addr
txforsig = etr.Hash(t.tx_for_sig(i).decode('hex'))
ecdsa_pub = get_ecdsa_verifying_key(pub)
if not ecdsa_pub:
return False
try:
verified = ecdsa_pub.verify_digest(sig, txforsig,
sigdecode = sigdecode_der)
except BadSignatureError, BadDigestError:
return False
def verify_tx_input(tx, i, script, sig, pub):
pub, sig, script = (binascii.unhexlify(x) for x in [pub, sig, script])
t = etr.Transaction(tx)
t.deserialize()
#to prepare for verification (to do the txhash for modtx)
#we need to have the "address" field set in the input.
typ, addr = etr.get_address_from_output_script(script)
if not typ == ebt.TYPE_ADDRESS:
#Don't support non-p2sh, non-p2pkh for now
log.debug("Invalid script")
return False
t.inputs()[i]["address"] = addr
t.inputs()[i]["type"] = 'p2pkh'
txforsig = etr.Hash(t.serialize_preimage(i).decode('hex'))
ecdsa_pub = get_ecdsa_verifying_key(pub)
if not ecdsa_pub:
return False
try:
verified = ecdsa_pub.verify_digest(sig, txforsig,
sigdecode = sigdecode_der)
except BadSignatureError, BadDigestError:
return False
def script_to_address(script):
bin_script = binascii.unhexlify(script)
res = etr.get_address_from_output_script(bin_script)
if not res[0] == ebt.TYPE_ADDRESS:
raise ValueError("Invalid script for bitcoin address")
return res[1]
def script_to_address(script):
bin_script = binascii.unhexlify(script)
res = etr.get_address_from_output_script(bin_script)
if not res[0] == ebt.TYPE_ADDRESS:
raise ValueError("Invalid script for bitcoin address")
return res[1]
