def test_vector_python_bitcoinlib(self):
"""Test python-bitcoinlib test vectors
https://github.com/petertodd/python-bitcoinlib/blob/master/bitcoin/tests/data/btcmsg.json
"""
file = "btcmsg.json"
filename = path.join(path.dirname(__file__), "data", file)
with open(filename, 'r') as f:
test_vectors = json.load(f)
for vector in test_vectors[:5]:
msg = vector['address']
tuplesig = btcmsg.sign(msg, vector['wif'])
self.assertTrue(btcmsg.verify(msg, vector['address'], tuplesig))
b64sig = btcmsg.serialize(*tuplesig)
self.assertTrue(btcmsg.verify(msg, vector['address'], b64sig))
self.assertTrue(
btcmsg.verify(msg, vector['address'], vector['signature']))
# python-bitcoinlib has a signature different from the
# one generated by Core/Electrum/btclib (which are identical)
self.assertNotEqual(b64sig.decode(), vector['signature'])
# python-bitcoinlib does not use RFC6979 deterministic nonce
# as proved by different r compared to Core/Electrum/btclib
rf, r, s = tuplesig
rf0, r0, s0 = btcmsg.deserialize(vector['signature'])
self.assertNotEqual(r, r0)
# while Core/Electrum/btclib use 'low-s' canonical signature
self.assertLess(s, ec.n - s)
# this is not true for python-bitcoinlib
#self.assertLess(s0, ec.n - s0)
#self.assertGreater(s0, ec.n - s0)
# just in case you wonder, here's the malleated signature
rf += (1 if rf == 31 else -1)
tuplesig_malleated = rf, r, ec.n - s
self.assertTrue(
btcmsg.verify(msg, vector['address'], tuplesig_malleated))
b64sig_malleated = btcmsg.serialize(*tuplesig_malleated)
self.assertTrue(
btcmsg.verify(msg, vector['address'], b64sig_malleated))
# of course, it is not equal to the python-bitcoinlib one (different r)
self.assertNotEqual(b64sig_malleated.decode(), vector['signature'])
def test_msgsign_p2pkh_2(self):
msg = 'test message'
# sigs are taken from (Electrum and) Bitcoin Core
# second private key
wif = 'Ky1XfDK2v6wHPazA6ECaD8UctEoShXdchgABjpU9GWGZDxVRDBMJ'
# compressed
address = '1DAag8qiPLHh6hMFVu9qJQm9ro1HtwuyK5'
exp_sig = b'IFqUo4/sxBEFkfK8mZeeN56V13BqOc0D90oPBChF3gTqMXtNSCTN79UxC33kZ8Mi0cHy4zYCnQfCxTyLpMVXKeA='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
sig = btcmsg.sign(msg, wif, address)
self.assertTrue(btcmsg.verify(msg, address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
sig = btcmsg.sign(msg.encode(), wif)
self.assertTrue(btcmsg.verify(msg.encode(), address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
wif = '5JDopdKaxz5bXVYXcAnfno6oeSL8dpipxtU1AhfKe3Z58X48srn'
# uncompressed
address = '19f7adDYqhHSJm2v7igFWZAqxXHj1vUa3T'
exp_sig = b'HFqUo4/sxBEFkfK8mZeeN56V13BqOc0D90oPBChF3gTqMXtNSCTN79UxC33kZ8Mi0cHy4zYCnQfCxTyLpMVXKeA='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
sig = btcmsg.sign(msg, wif, address)
self.assertTrue(btcmsg.verify(msg, address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
sig = btcmsg.sign(msg.encode(), wif)
self.assertTrue(btcmsg.verify(msg.encode(), address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
def test_segwit(self):
msg = 'test'
wif = 'L4xAvhKR35zFcamyHME2ZHfhw5DEyeJvEMovQHQ7DttPTM8NLWCK'
p2pkh = p2pkh_from_wif(wif)
p2wpkh = p2wpkh_from_wif(wif)
p2wpkh_p2sh = p2wpkh_p2sh_from_wif(wif)
# p2pkh base58 address (Core, Electrum, BIP137)
exp_sig = b'IBFyn+h9m3pWYbB4fBFKlRzBD4eJKojgCIZSNdhLKKHPSV2/WkeV7R7IOI0dpo3uGAEpCz9eepXLrA5kF35MXuU='
self.assertTrue(btcmsg.verify(msg, p2pkh, exp_sig))
sig = btcmsg.sign(msg, wif) # no address: p2pkh assumed
self.assertTrue(btcmsg.verify(msg, p2pkh, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
# p2wpkh-p2sh base58 address (Electrum)
self.assertTrue(btcmsg.verify(msg, p2wpkh_p2sh, sig))
# p2wpkh bech32 address (Electrum)
self.assertTrue(btcmsg.verify(msg, p2wpkh, sig))
# p2wpkh-p2sh base58 address (BIP137)
# different first letter in sig because of different rf
exp_sig = b'JBFyn+h9m3pWYbB4fBFKlRzBD4eJKojgCIZSNdhLKKHPSV2/WkeV7R7IOI0dpo3uGAEpCz9eepXLrA5kF35MXuU='
self.assertTrue(btcmsg.verify(msg, p2wpkh_p2sh, exp_sig))
sig = btcmsg.sign(msg, wif, p2wpkh_p2sh)
self.assertTrue(btcmsg.verify(msg, p2wpkh_p2sh, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
# p2wpkh bech32 address (BIP137)
# different first letter in sig because of different rf
exp_sig = b'KBFyn+h9m3pWYbB4fBFKlRzBD4eJKojgCIZSNdhLKKHPSV2/WkeV7R7IOI0dpo3uGAEpCz9eepXLrA5kF35MXuU='
self.assertTrue(btcmsg.verify(msg, p2wpkh, exp_sig))
sig = btcmsg.sign(msg, wif, p2wpkh)
self.assertTrue(btcmsg.verify(msg, p2wpkh, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
def test_msgsign_p2pkh(self):
msg = 'test message'
# sigs are taken from (Electrum and) Bitcoin Core
# first private key
q1 = 91634880152443617534842621287039938041581081254914058002978601050179556493499
# uncompressed
wif1u = wif_from_prvkey(q1, False)
self.assertEqual(
wif1u, b'5KMWWy2d3Mjc8LojNoj8Lcz9B1aWu8bRofUgGwQk959Dw5h2iyw')
add1u = p2pkh_from_wif(wif1u)
self.assertEqual(add1u, b'1HUBHMij46Hae75JPdWjeZ5Q7KaL7EFRSD')
sig1u = btcmsg.sign(msg, wif1u)
self.assertTrue(btcmsg.verify(msg, add1u, sig1u))
self.assertEqual(sig1u[0], 27)
exp_sig1u = b'G/iew/NhHV9V9MdUEn/LFOftaTy1ivGPKPKyMlr8OSokNC755fAxpSThNRivwTNsyY9vPUDTRYBPc2cmGd5d4y4='
self.assertEqual(btcmsg.serialize(*sig1u), exp_sig1u)
# compressed
wif1c = wif_from_prvkey(q1, True)
self.assertEqual(
wif1c, b'L41XHGJA5QX43QRG3FEwPbqD5BYvy6WxUxqAMM9oQdHJ5FcRHcGk')
add1c = p2pkh_from_wif(wif1c)
self.assertEqual(add1c, b'14dD6ygPi5WXdwwBTt1FBZK3aD8uDem1FY')
sig1c = btcmsg.sign(msg, wif1c)
self.assertTrue(btcmsg.verify(msg, add1c, sig1c))
self.assertEqual(sig1c[0], 31)
exp_sig1c = b'H/iew/NhHV9V9MdUEn/LFOftaTy1ivGPKPKyMlr8OSokNC755fAxpSThNRivwTNsyY9vPUDTRYBPc2cmGd5d4y4='
self.assertEqual(btcmsg.serialize(*sig1c), exp_sig1c)
self.assertFalse(btcmsg.verify(msg, add1c, sig1u))
self.assertFalse(btcmsg.verify(msg, add1u, sig1c))
rf, r, s, = sig1c
sig1c_malleated_rf = btcmsg.serialize(rf + 1, r, s)
self.assertFalse(btcmsg.verify(msg, add1c, sig1c_malleated_rf))
sig1c_malleated_s = btcmsg.serialize(rf, r, ec.n - s)
self.assertFalse(btcmsg.verify(msg, add1c, sig1c_malleated_s))
sig1c_malleated_rf_s = btcmsg.serialize(rf + 1, r, ec.n - s)
self.assertTrue(btcmsg.verify(msg, add1c, sig1c_malleated_rf_s))
def test_verify_p2pkh(self):
msg = 'Hello, world!'
address = '1FEz167JCVgBvhJBahpzmrsTNewhiwgWVG'
exp_sig = b'G+WptuOvPCSswt/Ncm1upO4lPSCWbS2cpKariPmHvxX5eOJwgqmdEExMTKvaR0S3f1TXwggLn/m4CbI2jv0SCuM='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
# https://github.com/stequald/bitcoin-btcmsg.sign-message
msg = 'test message'
address = '14dD6ygPi5WXdwwBTt1FBZK3aD8uDem1FY'
exp_sig = b'IPn9bbEdNUp6+bneZqE2YJbq9Hv5aNILq9E5eZoMSF3/fBX4zjeIN6fpXfGSGPrZyKfHQ/c/kTSP+NIwmyTzMfk='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
# https://github.com/stequald/bitcoin-btcmsg.sign-message
msg = 'test message'
address = '1HUBHMij46Hae75JPdWjeZ5Q7KaL7EFRSD'
exp_sig = b'G0k+Nt1u5boTTUfLyj6x1T5flg1v9rUKGlhs/jPApaTWLHf3GVdAIOIHip6sVwXEuzQGPWIlS0VT+yryXiDaavw='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
# https://github.com/petertodd/python-bitcoinlib/blob/master/bitcoin/tests/test_signmessage.py
msg = address = '1F26pNMrywyZJdr22jErtKcjF8R3Ttt55G'
exp_sig = b'H85WKpqtNZDrajOnYDgUY+abh0KCAcOsAIOQwx2PftAbLEPRA7mzXA/CjXRxzz0MC225pR/hx02Vf2Ag2x33kU4='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
# https://github.com/nanotube/supybot-bitcoin-marketmonitor/blob/master/GPG/local/bitcoinsig.py
msg = 'test message'
address = '16vqGo3KRKE9kTsTZxKoJKLzwZGTodK3ce'
exp_sig = b'HPDs1TesA48a9up4QORIuub67VHBM37X66skAYz0Esg23gdfMuCTYDFORc6XGpKZ2/flJ2h/DUF569FJxGoVZ50='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
msg = 'test message 2'
self.assertFalse(btcmsg.verify(msg, address, exp_sig))
msg = 'freenode:#bitcoin-otc:b42f7e7ea336db4109df6badc05c6b3ea8bfaa13575b51631c5178a7'
address = '1GdKjTSg2eMyeVvPV5Nivo6kR8yP2GT7wF'
exp_sig = b'GyMn9AdYeZIPWLVCiAblOOG18Qqy4fFaqjg5rjH6QT5tNiUXLS6T2o7iuWkV1gc4DbEWvyi8yJ8FvSkmEs3voWE='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
msg = 'testtest'
address = '1Hpj6xv9AzaaXjPPisQrdAD2tu84cnPv3f'
exp_sig = b'INEJxQnSu6mwGnLs0E8eirl5g+0cAC9D5M7hALHD9sK0XQ66CH9mas06gNoIX7K1NKTLaj3MzVe8z3pt6apGJ34='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
msg = 'testtest'
address = '18uitB5ARAhyxmkN2Sa9TbEuoGN1he83BX'
exp_sig = b'IMAtT1SjRyP6bz6vm5tKDTTTNYS6D8w2RQQyKD3VGPq2i2txGd2ar18L8/nvF1+kAMo5tNc4x0xAOGP0HRjKLjc='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
msg = 'testtest'
address = '1LsPb3D1o1Z7CzEt1kv5QVxErfqzXxaZXv'
exp_sig = b'H3I37ur48/fn52ZvWQT+Mj2wXL36gyjfaN5qcgfiVRTJb1eP1li/IacCQspYnUntiRv8r6GDfJYsdiQ5VzlG3As='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
# leading space
exp_sig = b' H3I37ur48/fn52ZvWQT+Mj2wXL36gyjfaN5qcgfiVRTJb1eP1li/IacCQspYnUntiRv8r6GDfJYsdiQ5VzlG3As='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
# trailing space
exp_sig = b'H3I37ur48/fn52ZvWQT+Mj2wXL36gyjfaN5qcgfiVRTJb1eP1li/IacCQspYnUntiRv8r6GDfJYsdiQ5VzlG3As= '
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
# leading and trailing spaces
exp_sig = b' H3I37ur48/fn52ZvWQT+Mj2wXL36gyjfaN5qcgfiVRTJb1eP1li/IacCQspYnUntiRv8r6GDfJYsdiQ5VzlG3As= '
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
def test_ledger(self):
"""Hybrid ECDSA Bitcoin message signature generated by Ledger"""
mnemonic = "barely sun snack this snack relief pipe attack disease boss enlist lawsuit"
#### non-standard leading 31 in DER serialization
derivation_path = "m/1"
msg = b"\xfb\xa3\x1f\x8cd\x85\xe29#K\xb3{\xfd\xa7<?\x95oL\xee\x19\xb2'oh\xa7]\xd9A\xfeU\xd8"
dersig = '3144022012ec0c174936c2a46dc657252340b2e6e6dd8c31dd059b6f9f33a90c21af2fba022030e6305b3ccf88009d419bf7651afcfcc0a30898b93ae9de9aa6ac03cf8ec56b'
# pubkey derivation
rprv = bip32.rootxprv_from_bip39mnemonic(mnemonic)
xprv = bip32.derive(rprv, derivation_path)
xpub = bip32.xpub_from_xprv(xprv)
# the actual message being signed
magic_msg = btcmsg._magic_hash(msg)
# save key_id and patch dersig
dersig = bytes.fromhex(dersig)
key_id = dersig[0]
dersig = b'\x30' + dersig[1:]
r, s, sighash = der.deserialize(dersig)
self.assertIsNone(sighash)
# ECDSA signature verification of the patched dersig
dsa._verify(magic_msg, xpub, dersig, ec, hf)
self.assertTrue(dsa.verify(magic_msg, xpub, dersig))
# compressed address
addr = p2pkh(xpub)
# equivalent Bitcoin Message Signature (non-serialized)
rec_flag = 27 + 4 + (key_id & 0x01)
btcmsgsig = (rec_flag, r, s)
# Bitcoin Message Signature verification
btcmsg._verify(msg, addr, btcmsgsig)
self.assertTrue(btcmsg.verify(msg, addr, btcmsgsig))
self.assertFalse(btcmsg.verify(magic_msg, addr, btcmsgsig))
btcmsg.sign(msg, xprv)
#### standard leading 30 in DER serialization
derivation_path = 'm/0/0'
msg = "hello world"
dersig = "3045022100967dac3262b4686e89638c8219c5761017f05cd87a855edf034f4a3ec6b59d3d0220108a4ef9682b71a45979d8c75c393382d9ccb8eb561d73b8c5fc0b87a47e7d27"
# pubkey derivation
rprv = bip32.rootxprv_from_bip39mnemonic(mnemonic)
xprv = bip32.derive(rprv, derivation_path)
xpub = bip32.xpub_from_xprv(xprv)
# the actual message being signed
magic_msg = btcmsg._magic_hash(msg)
# save key_id and patch dersig
dersig = bytes.fromhex(dersig)
key_id = dersig[0]
dersig = b'\x30' + dersig[1:]
r, s, sighash = der.deserialize(dersig)
self.assertIsNone(sighash)
# ECDSA signature verification of the patched dersig
dsa._verify(magic_msg, xpub, dersig, ec, hf)
self.assertTrue(dsa.verify(magic_msg, xpub, dersig))
# compressed address
addr = p2pkh(xpub)
# equivalent Bitcoin Message Signature (non-serialized)
rec_flag = 27 + 4 + (key_id & 0x01)
btcmsgsig = (rec_flag, r, s)
# Bitcoin Message Signature verification
btcmsg._verify(msg, addr, btcmsgsig)
self.assertTrue(btcmsg.verify(msg, addr, btcmsgsig))
self.assertFalse(btcmsg.verify(magic_msg, addr, btcmsgsig))
def test_exceptions(self):
msg = 'test'
wif = 'KwELaABegYxcKApCb3kJR9ymecfZZskL9BzVUkQhsqFiUKftb4tu'
address = p2pkh_from_wif(wif)
exp_sig = b'IHdKsFF1bUrapA8GMoQUbgI+Ad0ZXyX1c/yAZHmJn5hSNBi7J+TrI1615FG3g9JEOPGVvcfDWIFWrg2exLNtoVc='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
# Invalid recovery flag: 26
rf, r, s = btcmsg.deserialize(exp_sig)
self.assertRaises(ValueError, btcmsg.serialize, 26, r, s)
#btcmsg.serialize(26, r, s)
# short exp_sig
exp_sig = b'IHdKsFF1bUrapA8GMoQUbgI+Ad0ZXyX1c/yAZHmJn5hNBi7J+TrI1615FG3g9JEOPGVvcfDWIFWrg2exLoVc='
self.assertRaises(ValueError, btcmsg._verify, msg, address, exp_sig)
self.assertFalse(btcmsg.verify(msg, address, exp_sig))
# Invalid recovery flag: 26
exp_sig = b'GpNLHqEKSzwXV+KwwBfQthQ848mn5qSkmGDXpqshDuPYJELOnSuRYGQQgBR4PpI+w2tJdD4v+hxElvAaUSqv2eU='
self.assertRaises(ValueError, btcmsg._verify, msg, address, exp_sig)
self.assertFalse(btcmsg.verify(msg, address, exp_sig))
#btcmsg._verify(msg, address, exp_sig)
# Invalid recovery flag: 66
exp_sig = b'QpNLHqEKSzwXV+KwwBfQthQ848mn5qSkmGDXpqshDuPYJELOnSuRYGQQgBR4PpI+w2tJdD4v+hxElvAaUSqv2eU='
self.assertRaises(ValueError, btcmsg._verify, msg, address, exp_sig)
self.assertFalse(btcmsg.verify(msg, address, exp_sig))
#btcmsg._verify(msg, address, exp_sig)
# Pubkey mismatch: compressed wif, uncompressed address
wif = 'Ky1XfDK2v6wHPazA6ECaD8UctEoShXdchgABjpU9GWGZDxVRDBMJ'
address = '19f7adDYqhHSJm2v7igFWZAqxXHj1vUa3T'
self.assertRaises(ValueError, btcmsg.sign, msg, wif, address)
#btcmsg.sign(msg, wif, address)
# Pubkey mismatch: uncompressed wif, compressed address
wif = '5JDopdKaxz5bXVYXcAnfno6oeSL8dpipxtU1AhfKe3Z58X48srn'
address = '1DAag8qiPLHh6hMFVu9qJQm9ro1HtwuyK5'
self.assertRaises(ValueError, btcmsg.sign, msg, wif, address)
#btcmsg.sign(msg, wif, address)
msg = 'test'
wif = 'L4xAvhKR35zFcamyHME2ZHfhw5DEyeJvEMovQHQ7DttPTM8NLWCK'
p2pkh = p2pkh_from_wif(wif)
p2wpkh = p2wpkh_from_wif(wif)
p2wpkh_p2sh = p2wpkh_p2sh_from_wif(wif)
wif = 'Ky1XfDK2v6wHPazA6ECaD8UctEoShXdchgABjpU9GWGZDxVRDBMJ'
# Mismatch between p2pkh address and key pair
self.assertRaises(ValueError, btcmsg.sign, msg, wif, p2pkh)
# btcmsg.sign(msg, wif, p2pkh)
# Mismatch between p2wpkh address and key pair
self.assertRaises(ValueError, btcmsg.sign, msg, wif, p2wpkh)
# btcmsg.sign(msg, wif, p2wpkh)
# Mismatch between p2wpkh_p2sh address and key pair
self.assertRaises(ValueError, btcmsg.sign, msg, wif, p2wpkh_p2sh)
# btcmsg.sign(msg, wif, p2wpkh_p2sh)
# Invalid recovery flag (39) for base58 address
exp_sig = b'IHdKsFF1bUrapA8GMoQUbgI+Ad0ZXyX1c/yAZHmJn5hSNBi7J+TrI1615FG3g9JEOPGVvcfDWIFWrg2exLNtoVc='
_, r, s = btcmsg.deserialize(exp_sig)
sig = btcmsg.serialize(39, r, s)
self.assertRaises(ValueError, btcmsg._verify, msg, p2pkh, sig)
#btcmsg._verify(msg, p2pkh, sig)
# Invalid recovery flag (35) for bech32 address
exp_sig = b'IBFyn+h9m3pWYbB4fBFKlRzBD4eJKojgCIZSNdhLKKHPSV2/WkeV7R7IOI0dpo3uGAEpCz9eepXLrA5kF35MXuU='
_, r, s = btcmsg.deserialize(exp_sig)
sig = btcmsg.serialize(35, r, s)
self.assertRaises(ValueError, btcmsg._verify, msg, p2wpkh, sig)
def test_sign_strippable_message(self):
wif = 'Ky1XfDK2v6wHPazA6ECaD8UctEoShXdchgABjpU9GWGZDxVRDBMJ'
address = '1DAag8qiPLHh6hMFVu9qJQm9ro1HtwuyK5'
msg = ''
exp_sig = b'IFh0InGTy8lLCs03yoUIpJU6MUbi0La/4abhVxyKcCsoUiF3RM7lg51rCqyoOZ8Yt43h8LZrmj7nwwO3HIfesiw='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
sig = btcmsg.sign(msg, wif)
self.assertTrue(btcmsg.verify(msg, address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
# Bitcoin Core exp_sig (Electrum does strip leading/trailing spaces)
msg = ' '
exp_sig = b'IEveV6CMmOk5lFP+oDbw8cir/OkhJn4S767wt+YwhzHnEYcFOb/uC6rrVmTtG3M43mzfObA0Nn1n9CRcv5IGyak='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
sig = btcmsg.sign(msg, wif)
self.assertTrue(btcmsg.verify(msg, address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
# Bitcoin Core exp_sig (Electrum does strip leading/trailing spaces)
msg = ' '
exp_sig = b'H/QjF1V4fVI8IHX8ko0SIypmb0yxfaZLF0o56Cif9z8CX24n4petTxolH59pYVMvbTKQkGKpznSiPiQVn83eJF0='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
sig = btcmsg.sign(msg, wif)
self.assertTrue(btcmsg.verify(msg, address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
msg = 'test'
exp_sig = b'IJUtN/2LZjh1Vx8Ekj9opnIKA6ohKhWB95PLT/3EFgLnOu9hTuYX4+tJJ60ZyddFMd6dgAYx15oP+jLw2NzgNUo='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
sig = btcmsg.sign(msg, wif)
self.assertTrue(btcmsg.verify(msg, address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
# Bitcoin Core exp_sig (Electrum does strip leading/trailing spaces)
msg = ' test '
exp_sig = b'IA59z13/HBhvMMJtNwT6K7vJByE40lQUdqEMYhX2tnZSD+IGQIoBGE+1IYGCHCyqHvTvyGeqJTUx5ywb4StuX0s='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
sig = btcmsg.sign(msg, wif)
self.assertTrue(btcmsg.verify(msg, address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
# Bitcoin Core exp_sig (Electrum does strip leading/trailing spaces)
msg = 'test '
exp_sig = b'IPp9l2w0LVYB4FYKBahs+k1/Oa08j+NTuzriDpPWnWQmfU0+UsJNLIPI8Q/gekrWPv6sDeYsFSG9VybUKDPGMuo='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
sig = btcmsg.sign(msg, wif)
self.assertTrue(btcmsg.verify(msg, address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)
# Bitcoin Core exp_sig (Electrum does strip leading/trailing spaces)
msg = ' test'
exp_sig = b'H1nGwD/kcMSmsYU6qihV2l2+Pa+7SPP9zyViZ59VER+QL9cJsIAtu1CuxfYDAVt3kgr4t3a/Es3PV82M6z0eQAo='
self.assertTrue(btcmsg.verify(msg, address, exp_sig))
sig = btcmsg.sign(msg, wif)
self.assertTrue(btcmsg.verify(msg, address, sig))
self.assertEqual(btcmsg.serialize(*sig), exp_sig)