def create(cls, sec_num):
key_obj = Key(secret_exponent=sec_num)
publicKey, privateKey = key_obj._public_pair
key_obj = Key(public_pair=[publicKey, privateKey])
pubicAddress = key_obj.address()
cert = '''-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
'''
return cls(publicKey, pubicAddress, privateKey, cert, sec_num)
def test_segwit_create_tx(self):
from pycoin.tx.tx_utils import create_tx, sign_tx
from pycoin.tx.Spendable import Spendable
from pycoin.tx.pay_to.ScriptPayToAddress import ScriptPayToAddress
from pycoin.tx.pay_to.ScriptPayToAddressWit import ScriptPayToAddressWit
from pycoin.tx.pay_to.ScriptPayToScriptWit import ScriptPayToScriptWit
from pycoin.ui import address_for_pay_to_script_wit, script_obj_from_address
key1 = Key(1)
coin_value = 5000000
script = ScriptPayToAddressWit(b'\0', key1.hash160()).script()
tx_hash = b'\ee' * 32
tx_out_index = 0
spendable = Spendable(coin_value, script, tx_hash, tx_out_index)
key2 = Key(2)
tx = create_tx([spendable], [(key2.address(), coin_value)])
self.check_unsigned(tx)
sign_tx(tx, [key1.wif()])
self.check_signed(tx)
self.assertEqual(len(tx.txs_in[0].witness), 2)
s1 = ScriptPayToAddress(key1.hash160()).script()
address = address_for_pay_to_script_wit(s1)
spendable.script = script_obj_from_address(address).script()
tx = create_tx([spendable], [(key2.address(), coin_value)])
self.check_unsigned(tx)
sign_tx(tx, [key1.wif()], p2sh_lookup=build_p2sh_lookup([s1]))
self.check_signed(tx)
def test_sign_verify(self):
private_key = Key(secret_exponent=1)
h = b"\x00" * 32
sig = private_key.sign(h)
self.assertTrue(private_key.verify(h, sig))
public_key = private_key.public_copy()
self.assertTrue(public_key.verify(h, sig))
h160_key = Key(hash160=private_key.hash160())
self.assertTrue(h160_key.verify(h, sig))
def main(argv=sys.argv):
if len(argv) < 2:
usage(argv)
config_uri = argv[1]
options = parse_vars(argv[2:])
setup_logging(config_uri)
settings = get_appsettings(config_uri, options=options)
engine = engine_from_config(settings, 'sqlalchemy.')
DBSession.configure(bind=engine)
Base.metadata.create_all(engine)
# initial encryption passphrase set to ''
salt = os.urandom(32)
password = bytes(
input(
"If you would like to set a password, please enter it now. Otherwise, just press enter. > "
).encode())
# initial password is the empty string
enc_key = gen_key_from_salt_and_password(salt, password)
f = Fernet(enc_key)
secret_exponent_bytes = os.urandom(32)
secret_exponent = convert_se_bytes(secret_exponent_bytes)
address = Key(
secret_exponent=secret_exponent,
netcode=NET_CODE['bitcoin']).address(use_uncompressed=USE_COMPRESSED)
with transaction.manager:
model = KeyStore(name=PRIMARY,
encrypted=f.encrypt(secret_exponent_bytes),
salt=salt,
address=address)
DBSession.add(model)
def verify_dash_signature(generator, address, message, signature):
compressed = False
G = generator
curve = G.curve()
order = G.order()
_a, _b, _p = curve.a(), curve.b(), curve.p()
sig = base64.b64decode(signature)
if len(sig) != 65:
raise Exception("vmB", "Bad signature")
hb = ord(sig[0])
r, s = map(str_to_long, [sig[1:33], sig[33:65]])
if hb < 27 or hb >= 35:
raise Exception("vmB", "Bad first byte")
if hb >= 31:
compressed = True
hb -= 4
recid = hb - 27
x = (r + (recid / 2) * order) % _p
y2 = (pow(x, 3, _p) + _a * x + _b) % _p
yomy = numbertheory.modular_sqrt(y2, _p)
if (yomy - recid) % 2 == 0:
y = yomy
else:
y = _p - yomy
R = ellipticcurve.Point(curve, x, y, order)
e = str_to_long(message)
minus_e = -e % order
inv_r = numbertheory.inverse_mod(r, order)
Q = inv_r * (R * s + G * minus_e)
key = Key(public_pair=(Q.x(), Q.y()), netcode='DASH')
return key.address(use_uncompressed=not compressed) == address
def test_is_wif_valid(self):
WIFS = [
"KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn",
"5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAnchuDf",
"KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU74NMTptX4",
"5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAvUcVfH"
]
for wif in WIFS:
self.assertEqual(is_wif_valid(wif), "BTC")
a = wif[:-1] + chr(ord(wif[-1]) + 1)
self.assertEqual(is_wif_valid(a), None)
NETWORK_NAMES = network_codes()
for netcode in NETWORK_NAMES:
for se in range(1, 10):
key = Key(secret_exponent=se, netcode=netcode)
for tv in [True, False]:
wif = key.wif(use_uncompressed=tv)
self.assertEqual(
is_wif_valid(wif, allowable_netcodes=[netcode]),
netcode)
a = wif[:-1] + chr(ord(wif[-1]) + 1)
self.assertEqual(
is_wif_valid(a, allowable_netcodes=[netcode]), None)
def gen_key_pair():
key, pri_hex = _gen_pri_key()
my_key = Key(secret_exponent=key,
prefer_uncompressed=False,
netcode=NET_CODE)
return pri_hex, my_key.address()
def test_pay_to_script_file(self):
the_dir = self.set_cache_dir()
p2sh_file = tempfile.NamedTemporaryFile()
p2sh_file.write(
"52210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f817982102c60"
"47f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee52102f9308a019258"
"c31049344f85f89d5229b531c845836f99b08601f113bce036f953ae\n".encode("utf8"))
p2sh_file.write(
"53210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f817982102c60"
"47f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee52102f9308a019258"
"c31049344f85f89d5229b531c845836f99b08601f113bce036f953ae\n".encode("utf8"))
p2sh_file.flush()
tx_source_hex = (
"01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0"
"0ffffffff0200f902950000000017a91415fc0754e73eb85d1cbce08786fadb7320ecb8dc8700f90295"
"0000000017a914594f349df0bac3084ffea8a477bba5f03dcd45078700000000")
self.launch_tool("tx -C %s" % tx_source_hex)
tx_to_sign = ( "01000000020a316ea8980ef9ba02f4e6637c88229bf059f39b06238d48d06a8e"
"f672aea2bb0000000000ffffffff0a316ea8980ef9ba02f4e6637c88229bf059"
"f39b06238d48d06a8ef672aea2bb0100000000ffffffff01f0ca052a01000000"
"1976a914751e76e8199196d454941c45d1b3a323f1433bd688ac0000000000f9"
"02950000000017a91415fc0754e73eb85d1cbce08786fadb7320ecb8dc8700f9"
"02950000000017a914594f349df0bac3084ffea8a477bba5f03dcd450787")
wifs = ' '.join(Key(_).wif() for _ in (1, 2, 3))
signed = tempfile.mktemp(suffix=".hex")
self.launch_tool("tx -a -P %s --db %s %s %s -o %s" % (
p2sh_file.name, tx_source_hex, tx_to_sign, wifs, signed), env=dict(PYCOIN_CACHE_DIR=the_dir))
tx = Tx.from_hex(open(signed).read())
self.assertEqual(tx.id(), "9d991ddccf77e33cb4584e4fc061a36da0da43589232b2e78a1aa0748ac3254b")
def _build_signature(key, tbs, network):
''' Takes a utility.ECPrivateKey() as key, tbs as rfc2459.TBSCertificate, and network as pycoin.NETWORK_NAMES
'''
secret_exponent = encoding.to_long(256, encoding.byte_to_int,
key[0][1].asOctets())[0]
coin = Key(secret_exponent=secret_exponent, netcode=network)
public_pair = coin.public_pair()
coin_address = coin.address()
print "building signature for %s address %s" % (network, coin_address)
pubkeybitstring = (key[0].getComponentByPosition(2),
key[0].getComponentByPosition(3))
tbsder = encoder.encode(tbs)
hashvalue = SHA256.new(tbsder)
dgst = hashvalue.digest()
dgstaslong = encoding.to_long(256, encoding.byte_to_int, dgst)[0]
order2 = pycoin.ecdsa.generator_secp256k1.order()
## random sign
generator = pycoin.ecdsa.generator_secp256k1
rawsig2 = randomsign(generator, secret_exponent, dgstaslong)
# deterministic sign
##rawsig2 = pycoin.ecdsa.sign(pycoin.ecdsa.generator_secp256k1, secret_exponent, dgstaslong)
r2, s2 = rawsig2
print "signature: r: %x s: %x" % (r2, s2)
if not pycoin.ecdsa.verify(generator, coin.public_pair(), dgstaslong,
rawsig2):
raise SignatureVerifyException(
"Generated signature r: %x s: %x does not verify against public key %s"
% (r2, s2, public_pair))
signature = utility.ECDSASigValue()
signature.setComponentByName('r', r2)
signature.setComponentByName('s', s2)
dersig = encoder.encode(signature)
signaturevalue = "'{0}'H".format(binascii.hexlify(dersig))
bitstring = univ.BitString(value=signaturevalue)
return rfc2314.Signature(bitstring)
def test_multisig_one_at_a_time(self):
N = 3
M = 3
keys = [Key(secret_exponent=i) for i in range(1, M + 2)]
tx_in = TxIn.coinbase_tx_in(script=b'')
script = ScriptMultisig(n=N, sec_keys=[key.sec()
for key in keys[:M]]).script()
tx_out = TxOut(1000000, script)
tx1 = Tx(version=1, txs_in=[tx_in], txs_out=[tx_out])
tx2 = tx_utils.create_tx(tx1.tx_outs_as_spendable(),
[keys[-1].address()])
ids = [
"403e5bfc59e097bb197bf77a692d158dd3a4f7affb4a1fa41072dafe7bec7058",
"5931d9995e83721243dca24772d7012afcd4378996a8b953c458175f15a544db",
"9bb4421088190bbbb5b42a9eaa9baed7ec7574a407c25f71992ba56ca43d9c44",
"03a1dc2a63f93a5cf5a7cb668658eb3fc2eda88c06dc287b85ba3e6aff751771"
]
for i in range(1, M + 1):
self.assertEqual(tx2.bad_signature_count(), 1)
self.assertEqual(tx2.id(), ids[i - 1])
hash160_lookup = build_hash160_lookup(key.secret_exponent()
for key in keys[i - 1:i])
tx2.sign(hash160_lookup=hash160_lookup)
self.assertEqual(tx2.id(), ids[i])
self.assertEqual(tx2.bad_signature_count(), 0)
def test_against_myself():
"""
Test code that verifies against ourselves only. Useful but not so great.
"""
from pycoin.contrib.msg_signing import (parse_signed_message, sign_message,
verify_message)
from pycoin.encoding import bitcoin_address_to_hash160_sec_with_prefix
from pycoin.encoding import wif_to_tuple_of_secret_exponent_compressed
for wif, right_addr in [
('L4gXBvYrXHo59HLeyem94D9yLpRkURCHmCwQtPuWW9m6o1X8p8sp',
'1LsPb3D1o1Z7CzEt1kv5QVxErfqzXxaZXv'),
('5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss',
'1HZwkjkeaoZfTSaJxDw6aKkxp45agDiEzN'),
]:
se, comp = wif_to_tuple_of_secret_exponent_compressed(wif)
k = Key(secret_exponent=se, is_compressed=comp)
assert k.address() == right_addr
vk = Key(public_pair=k.public_pair(), is_compressed=comp)
assert vk.address() == right_addr
h160, pubpre = bitcoin_address_to_hash160_sec_with_prefix(right_addr)
vk2 = Key(hash160=h160)
assert vk2.address() == right_addr
for i in range(1, 30, 10):
msg = 'test message %s' % ('A' * i)
sig = sign_message(k, msg, verbose=1)
assert right_addr in sig
# check parsing works
m, a, s = parse_signed_message(sig)
assert m == msg, m
assert a == right_addr, a
sig2 = sign_message(k, msg, verbose=0)
assert sig2 in sig, (sig, sig2)
assert s == sig2, s
ok = verify_message(k, sig2, msg)
assert ok
ok = verify_message(k, sig2.encode('ascii'), msg)
assert ok
def show_address(args):
key, wif = decrypt_key()
pub_key = Key(public_pair=key.public_pair())
addr = pub_key.address()
data = explorer.get_address(addr)
print()
print('Address: ', data.addrStr)
print('Balance: ', data.balanceSat)
def do_test(exp_hex, wif, c_wif, public_pair_sec, c_public_pair_sec,
address_b58, c_address_b58):
secret_exponent = int(exp_hex, 16)
sec = h2b(public_pair_sec)
c_sec = h2b(c_public_pair_sec)
keys_wif = [
Key(secret_exponent=secret_exponent),
Key.from_text(wif),
Key.from_text(c_wif),
]
key_sec = Key.from_sec(sec)
key_sec_c = Key.from_sec(c_sec)
keys_sec = [key_sec, key_sec_c]
for key in keys_wif:
self.assertEqual(key.secret_exponent(), secret_exponent)
self.assertEqual(key.public_copy().secret_exponent(), None)
v = repr(key)
if key._prefer_uncompressed:
self.assertEqual(key.wif(), wif)
else:
self.assertEqual(key.wif(), c_wif)
self.assertEqual(key.wif(use_uncompressed=True), wif)
self.assertEqual(key.wif(use_uncompressed=False), c_wif)
for key in keys_wif + keys_sec:
if key._prefer_uncompressed:
self.assertEqual(key.sec(), sec)
else:
self.assertEqual(key.sec(), c_sec)
self.assertEqual(key.sec(use_uncompressed=True), sec)
self.assertEqual(key.sec(use_uncompressed=False), c_sec)
if key._prefer_uncompressed:
self.assertEqual(key.address(), address_b58)
else:
self.assertEqual(key.address(), c_address_b58)
self.assertEqual(key.address(use_uncompressed=False),
c_address_b58)
self.assertEqual(key.address(use_uncompressed=True),
address_b58)
key_pub = Key.from_text(address_b58, is_compressed=False)
key_pub_c = Key.from_text(c_address_b58, is_compressed=True)
self.assertEqual(key_pub.address(), address_b58)
self.assertEqual(key_pub.address(use_uncompressed=True),
address_b58)
self.assertEqual(key_pub.address(use_uncompressed=False), None)
self.assertEqual(key_pub_c.address(), c_address_b58)
self.assertEqual(key_pub_c.address(use_uncompressed=True), None)
self.assertEqual(key_pub_c.address(use_uncompressed=False),
c_address_b58)
def test_script_type_pay_to_public_pair(self):
for se in range(1, 100):
key = Key(secret_exponent=se)
for b in [True, False]:
st = ScriptPayToPublicKey.from_key(key, use_uncompressed=b)
addr = key.address(use_uncompressed=b)
self.assertEqual(st.address(), addr)
sc = st.script()
st = script_obj_from_script(sc)
self.assertEqual(st.address(), addr)
def test_script_type_pay_to_address(self):
for se in range(1, 100):
key = Key(secret_exponent=se)
for b in [True, False]:
addr = key.address(use_uncompressed=b)
st = script_obj_from_address(addr)
self.assertEqual(st.address(), addr)
sc = st.script()
st = script_obj_from_script(sc)
self.assertEqual(st.address(), addr)
def parse_key(item, PREFIX_TRANSFORMS, network):
key = parse_prefixes(item, PREFIX_TRANSFORMS)
if key:
return key
secret_exponent = parse_as_secret_exponent(item)
if secret_exponent:
return Key(secret_exponent=secret_exponent, netcode=network)
if SEC_RE.match(item):
return Key.from_sec(h2b(item))
public_pair = parse_as_public_pair(item)
if public_pair:
return Key(public_pair=public_pair, netcode=network)
if HASH160_RE.match(item):
return Key(hash160=h2b(item), netcode=network)
return None
def check_tx_can_be_signed(self, tx_u, tx_s, private_keys=[], p2sh_values=[]):
tx_u_prime = self.unsigned_copy(tx_s)
tx_u_hex = tx_u.as_hex()
tx_s_hex = tx_s.as_hex()
tx_u_prime.set_unspents(tx_s.unspents)
tx_u_prime.sign(
hash160_lookup=LazySecretExponentDB([Key(pk).wif() for pk in private_keys], {}),
p2sh_lookup=build_p2sh_lookup([h2b(x) for x in p2sh_values])
)
self.check_signed(tx_u_prime)
tx_hex = tx_u_prime.as_hex()
self.assertEqual(tx_hex, tx_s_hex)
def gen_2of3_multisig_key_pair():
key_pairs = []
for i in range(0, 3):
key, pri_hex = _gen_pri_key()
my_key = Key(secret_exponent=key,
prefer_uncompressed=False,
netcode=NET_CODE)
# return wif or hex format, use your own strategy
key_pairs.append((my_key.wif(), my_key.sec_as_hex()))
return get_multisig_address(
2, [binascii.unhexlify(key[1]) for key in key_pairs]), key_pairs
def test_repr(self):
key = Key(secret_exponent=273, netcode='XTN')
address = key.address()
pub_k = Key.from_text(address)
self.assertEqual(repr(pub_k), '<mhDVBkZBWLtJkpbszdjZRkH1o5RZxMwxca>')
wif = key.wif()
priv_k = Key.from_text(wif)
self.assertEqual(
repr(priv_k),
'private_for <0264e1b1969f9102977691a40431b0b672055dcf31163897d996434420e6c95dc9>'
)
def parse_key(item, networks, generator):
if item == 'create':
return None, _create_bip32(generator)
for network, key_info in key_info_from_text(item, networks=networks):
return network, key_info["create_f"]()
if HASH160_RE.match(item):
return None, Key(hash160=h2b(item))
secret_exponent = parse_as_secret_exponent(item, generator)
if secret_exponent:
return None, Key(secret_exponent=secret_exponent, generator=generator)
if SEC_RE.match(item):
return None, Key.from_sec(h2b(item), generator)
public_pair = parse_as_public_pair(item, generator)
if public_pair:
return None, Key(public_pair=public_pair)
return None, None
def test_solve_pay_to_public_pair(self):
for se in range(1, 10):
key = Key(secret_exponent=se)
for b in [True, False]:
addr = key.address(use_uncompressed=b)
st = ScriptPayToPublicKey.from_key(key, use_uncompressed=b)
self.assertEqual(st.address(), addr)
hl = build_hash160_lookup([se])
sv = 100
solution = st.solve(hash160_lookup=hl, sign_value=sv, signature_type=SIGHASH_ALL)
sc = st.script()
st = script_obj_from_script(sc)
self.assertEqual(st.address(), addr)
def test_repr(self):
from pycoin.key import Key
netcode = 'XTN'
key = Key(secret_exponent=273, netcode=netcode)
wallet = BIP32Node.from_master_secret(bytes(key.wif().encode('ascii')), netcode)
address = wallet.address()
pub_k = wallet.from_text(address)
self.assertEqual(repr(pub_k), '<myb5gZNXePNf2E2ksrjnHRFCwyuvt7oEay>')
wif = wallet.wif()
priv_k = wallet.from_text(wif)
self.assertEqual(repr(priv_k), 'private_for <03ad094b1dc9fdce5d3648ca359b4e210a89d049532fdd39d9ccdd8ca393ac82f4>')
def test_solve_pay_to_address(self):
for se in range(1, 10):
key = Key(secret_exponent=se)
for b in [True, False]:
addr = key.address(use_uncompressed=b)
st = script_obj_from_address(addr)
self.assertEqual(st.address(), addr)
hl = build_hash160_lookup([se])
sv = 100
solution = st.solve(hash160_lookup=hl, signature_for_hash_type_f=const_f(sv), signature_type=SIGHASH_ALL)
sc = st.script()
st = script_obj_from_script(sc)
self.assertEqual(st.address(), addr)
def multisig_M_of_N(self, M, N, unsigned_id, signed_id):
keys = [Key(secret_exponent=i) for i in range(1, N+2)]
tx_in = TxIn.coinbase_tx_in(script=b'')
script = ScriptMultisig(m=M, sec_keys=[key.sec() for key in keys[:N]]).script()
tx_out = TxOut(1000000, script)
tx1 = Tx(version=1, txs_in=[tx_in], txs_out=[tx_out])
tx2 = tx_utils.create_tx(tx1.tx_outs_as_spendable(), [keys[-1].address()])
self.assertEqual(tx2.id(), unsigned_id)
self.assertEqual(tx2.bad_signature_count(), 1)
hash160_lookup = build_hash160_lookup(key.secret_exponent() for key in keys)
tx2.sign(hash160_lookup=hash160_lookup)
self.assertEqual(tx2.id(), signed_id)
self.assertEqual(tx2.bad_signature_count(), 0)
def sign_document(args):
key, wif = decrypt_key()
pub_key = Key(public_pair=key.public_pair())
addr = pub_key.address()
out = get_spendable(addr)
if out is None:
raise Exception('Insufficient funds')
signature, file_hash = file_signature(args.filename)
print('Signing document: ', args.filename)
print('File hash: ', file_hash.hex())
print('File signature: ', signature.hex())
tx = build_tx(signature, addr, wif)
print(tx.as_hex())
def generate_key():
generator = secp256k1_generator
rand = codecs.encode(os.urandom(32), 'hex').decode()
secret_exponent = int('0x' + rand, 0)
key = Key(secret_exponent=secret_exponent, generator=generator)
print(key.wif()) #wif-format
print(key.sec_as_hex()) #hex-format
print(key.address()) #btc-address uncompressed
print(key.public_copy()) #public key uncompressed
key._prefer_uncompressed = False
print(key.address()) #btc-address compressed
print(key.public_copy()) #public key compressed
print(secret_exponent) #for reuse purpose
return key
def multisig_M_of_N_individually(self, M, N):
keys = [Key(secret_exponent=i) for i in range(1, N + 2)]
tx_in = TxIn.coinbase_tx_in(script=b'')
script = ScriptMultisig(m=M, sec_keys=[key.sec()
for key in keys[:N]]).script()
tx_out = TxOut(1000000, script)
tx1 = Tx(version=1, txs_in=[tx_in], txs_out=[tx_out])
for partial_key_list in itertools.permutations(keys[:N], M):
tx2 = create_tx(tx1.tx_outs_as_spendable(), [keys[-1].address()])
for key in partial_key_list:
self.assertEqual(tx2.bad_signature_count(), 1)
hash160_lookup = build_hash160_lookup([key.secret_exponent()])
tx2.sign(hash160_lookup=hash160_lookup)
self.assertEqual(tx2.bad_signature_count(), 0)
def test_sign_pay_to_script_multisig(self):
M, N = 3, 3
keys = [Key(secret_exponent=i) for i in range(1, N+2)]
tx_in = TxIn.coinbase_tx_in(script=b'')
underlying_script = ScriptMultisig(m=M, sec_keys=[key.sec() for key in keys[:N]]).script()
address = address_for_pay_to_script(underlying_script)
self.assertEqual(address, "39qEwuwyb2cAX38MFtrNzvq3KV9hSNov3q")
script = standard_tx_out_script(address)
tx_out = TxOut(1000000, script)
tx1 = Tx(version=1, txs_in=[tx_in], txs_out=[tx_out])
tx2 = tx_utils.create_tx(tx1.tx_outs_as_spendable(), [address])
hash160_lookup = build_hash160_lookup(key.secret_exponent() for key in keys[:N])
p2sh_lookup = build_p2sh_lookup([underlying_script])
tx2.sign(hash160_lookup=hash160_lookup, p2sh_lookup=p2sh_lookup)
self.assertEqual(tx2.bad_signature_count(), 0)
def subkey(self, path):
"""
path:
of the form "K" where K is an integer index, or "K/N" where N is usually
a 0 (deposit address) or 1 (change address)
"""
t = path.split("/")
if len(t) == 2:
n, for_change = t
else:
n, = t
for_change = 0
b = (str(n) + ':' + str(for_change) +
':').encode("utf8") + self.master_public_key()
offset = from_bytes_32(double_sha256(b))
if self.master_private_key():
return Key(secret_exponent=((self.master_private_key() + offset) %
ORDER),
prefer_uncompressed=True)
p1 = offset * secp256k1_generator
x, y = self.public_pair()
p2 = secp256k1_generator.Point(x, y)
p = p1 + p2
return Key(public_pair=p, prefer_uncompressed=True)
def test_master_public_and_private(self):
# these addresses were generated by hand using electrum with a master public key
# corresponding to secret exponent 1
RECEIVING_ADDRESSES = [
"1AYPdHLna6bKFUbeXoAEVbaXUxifUwCMay",
"13UeuWJba5epizAKyfCfiFKY5Kbxfdxe7B",
"19f6KJUTL5AGBRvLBGiL6Zpcx53QA7zaKT",
"1Cm33VuSkoUETwx5nsF1wgmGqYwJZxpZdY",
"14Z6ErkETixQMUeivsYbrdoUFns2J1iSct",
]
CHANGE_ADDRESSES = [
"1JVYsmjrqSy1BKvo1gYpNjX7AYea74nQYe",
"1Cc7itfQaDqZK3vHYphFsySujQjBNba8mw",
"15wrXvrAnyv3usGeQRohnnZ8tz9XAekbag",
"1MnWCEjE5YiZpZrkP8HcXEeDqwg43RxLwu",
"1Fgyp3PUx9AAg8yJe1zGXHP5dVC6i1tXbs",
"12XTLd4u9jeqw4egLAUhoKLxHARCdKWkty"
]
k = Key(secret_exponent=1, generator=secp256k1_generator)
master_public_key = k.sec(use_uncompressed=True)[1:]
wallet = ElectrumWallet(generator=secp256k1_generator,
master_public_key=master_public_key)
for idx, address in enumerate(RECEIVING_ADDRESSES):
subkey = wallet.subkey("%s/0" % idx)
calculated_address = subkey.address()
self.assertEqual(address, calculated_address)
for idx, address in enumerate(CHANGE_ADDRESSES):
subkey = wallet.subkey("%s/1" % idx)
calculated_address = subkey.address()
self.assertEqual(address, calculated_address)
wallet = ElectrumWallet(generator=secp256k1_generator,
master_private_key=1)
for idx, address in enumerate(RECEIVING_ADDRESSES):
subkey = wallet.subkey("%s/0" % idx)
calculated_address = subkey.address()
self.assertEqual(address, calculated_address)
wif = subkey.wif()
key = key_from_text(wif)
self.assertEqual(key.address(use_uncompressed=True), address)
for idx, address in enumerate(CHANGE_ADDRESSES):
subkey = wallet.subkey("%s/1" % idx)
calculated_address = subkey.address()
self.assertEqual(address, calculated_address)
wif = subkey.wif()
key = key_from_text(wif)
self.assertEqual(key.address(use_uncompressed=True), address)
