def main():
# generate 16 bytes of entropy and
# convert to a mnemonic phrase (12 words)
entropy = bytes([random.getrandbits(8) for i in range(16)])
mnemonic = bip39.mnemonic_from_bytes(entropy)
# or just define hardcoded:
mnemonic = "alien visual jealous source coral memory embark certain radar capable clip edit"
print(mnemonic)
# convert to seed, empty password
seed = bip39.mnemonic_to_seed(mnemonic)
# convert to the root key
# you can define the version - x/y/zprv for desired network
root = bip32.HDKey.from_seed(seed, version=NETWORKS["test"]["xprv"])
print(root.to_base58())
print("\nBIP-44 - legacy")
# derive account according to bip44
bip44_xprv = root.derive("m/44h/1h/0h")
print(bip44_xprv.to_base58())
# corresponding master public key:
bip44_xpub = bip44_xprv.to_public()
print(bip44_xpub.to_base58())
# first 5 receiving addresses
for i in range(5):
# .key member is a public key for HD public keys
# and a private key for HD private keys
pub = bip44_xpub.derive("m/0/%d" % i).key
sc = script.p2pkh(pub)
print(sc.address(NETWORKS["test"]))
print("\nBIP-84 - native segwit")
# derive account according to bip84
bip84_xprv = root.derive("m/84h/1h/0h")
# you can also change version of the key to get zpub (vpub on testnet)
bip84_xprv.version = NETWORKS["test"]["zprv"]
print(bip84_xprv.to_base58())
# corresponding master public key:
bip84_xpub = bip84_xprv.to_public()
print(bip84_xpub.to_base58())
# first 5 receiving addresses
for i in range(5):
pub = bip84_xpub.derive("m/0/%d" % i).key
sc = script.p2wpkh(pub)
print(sc.address(NETWORKS["test"]))
print("\nBIP-49 - nested segwit")
# derive account according to bip49
bip49_xprv = root.derive("m/49h/1h/0h")
# you can also change version of the key to get ypub (upub on testnet)
bip49_xprv.version = NETWORKS["test"]["yprv"]
print(bip49_xprv.to_base58())
# corresponding master public key:
bip49_xpub = bip49_xprv.to_public()
print(bip49_xpub.to_base58())
# first 5 receiving addresses
for i in range(5):
pub = bip49_xpub.derive("m/0/%d" % i).key
# use p2sh(p2wpkh(pubkey)) to get nested segwit scriptpubkey
sc = script.p2sh(script.p2wpkh(pub))
print(sc.address(NETWORKS["test"]))
def main():
# all from the same private key
prv = ec.PrivateKey.from_wif(
"L2e5y14ZD3U1J7Yr62t331RtYe2hRW2TBBP8qNQHB8nSPBNgt6dM")
pub = prv.get_public_key()
print("Public key:")
print(hexlify(pub.serialize()))
# we will generate regtest addresses
network = NETWORKS["regtest"]
print("Legacy (pay to pubkey hash):")
sc = script.p2pkh(pub)
# default network is main
print(sc.address(network))
print("Segwit (pay to witness pubkey hash):")
sc = script.p2wpkh(pub)
print(sc.address(network))
print("Nested segwit (p2sh-p2wpkh):")
sc = script.p2sh(script.p2wpkh(pub))
print(sc.address(network))
print("\nMultisig address (2 of 3):")
# unsorted
pubs = [
ec.PublicKey.parse(
unhexlify(
"02edd7a58d2ff1e483d35f92a32e53607423f936b29bf95613cab24b0b7f92e0f1"
)),
ec.PublicKey.parse(
unhexlify(
"03a4a6d360acc45cb281e0022b03218fad6ee93881643488ae39d22b854d9fa261"
)),
ec.PublicKey.parse(
unhexlify(
"02e1fdc3b011effbba4b0771eb0f7193dee24cfe101ab7e8b64516d83f7116a615"
)),
]
# 2 of 3 multisig script
sc = script.multisig(2, pubs)
print("Legacy, unsorted (p2sh):")
redeem_sc = script.p2sh(sc)
print(redeem_sc.address(network))
print("Native segwit, sorted (p2wsh):")
sc = script.multisig(2, sorted(pubs))
witness_sc = script.p2wsh(sc)
print(witness_sc.address(network))
print("Nested segwit, sorted (p2sh-p2wsh):")
sc = script.multisig(2, sorted(pubs))
witness_sc = script.p2wsh(sc)
redeem_sc = script.p2sh(witness_sc)
print(redeem_sc.address(network))
def scriptpubkey(self, idx=None):
if idx is None and "*" in self.serialize():
raise RuntimeError("Index is required")
if self.is_multisig:
keys = []
for i, key in enumerate(self.base_key):
keys.append(derive_pubkey(key, self.path_suffix[i], idx))
if self.sort_keys:
keys = sorted(keys)
sc = script.multisig(int(self.multisig_M), keys)
if self.sh:
return script.p2sh(sc)
elif self.sh_wsh:
return script.p2sh(script.p2wsh(sc))
elif self.wsh:
return script.p2wsh(sc)
else:
key = derive_pubkey(self.base_key, self.path_suffix, idx)
if self.wpkh:
return script.p2wpkh(key)
elif self.sh_wpkh:
return script.p2sh(script.p2wpkh(key))
else:
return script.p2pkh(key)
def main():
#Extended public key string to an address, tested against https://iancoleman.io/bip39/
#Mnemonic used: february deposit cram leopard ripple turtle impulse history accident noodle love crazy limit pond tourist
#bip44, first address "124d7o3DmtXqvn1dJLxj9TQYA7v9Cmcyes"
key = "xpub6D2VGgnY7WJ8H3SKBPhqbarfA6uZbcUSLnuwgzE5qvmXyq23yNg42GKJgDXMJ27Q3NBeFjQDyz8Za27sYUfmWs7PNow8i3FUNwHufbyyWQK"
#bip49, first address "3CntmFG5nBG9sCCr2b6MWhTAk9RLEicERn"
#key = "ypub6YFkZihjEjQdftpu4NwwNobdTB7eRHQjcTjyDj4hhANcj3KqXVTQuEuz1rL49NtzFLCxvnSAd4gnCG1yfWdDv1evXSrMKZfCcYQ3yR6eyP2"
#bip84, first address "bc1qv5rgjspu3kljw8kczdvyl4x0gkk09jp7ddmrp8"
#key = "zpub6riY8dgyiTYHfTE3xqKscWYjZrKtwWwtc4LBfvnkqPHH9gUAC4HJrydyphFihghnGnEw5cyDDgq5iZULuheBJqJW825Cv5LCgUh7VJTTLhw"
k = bip32.HDKey.from_base58(key)
child = k.derive([0, 0])
if key[0:4] == "xpub":
address = script.p2pkh(child).address()
elif key[0:4] == "zpub":
address = script.p2wpkh(child).address()
elif key[0:4] == "ypub":
address = script.p2sh(script.p2wpkh(child)).address()
print(address)
def main():
# all from the same private key
prv = ec.PrivateKey.from_wif(
"L2e5y14ZD3U1J7Yr62t331RtYe2hRW2TBBP8qNQHB8nSPBNgt6dM")
pub = prv.get_public_key()
inputs = [
# legacy
{
"txid":
unhexlify(
"7f0c7538e898bbe5531fa47d4057b52c914ec45e20ae1a5572ea1005a8ba50f8"
),
"vout":
0,
"value":
int(1e8),
"script":
script.p2pkh(pub),
},
# native segwit
{
"txid":
unhexlify(
"f51e6fc2392558a70ae970e93538f368828ad2800a7370f372a652de463429fc"
),
"vout":
0,
"value":
int(2e8),
"script":
script.p2wpkh(pub),
},
# nested segwit
{
"txid":
unhexlify(
"2e4cb680ed008b6e529c4c83f00d55326a2e68b48ddf11267e3f5323006966a6"
),
"vout":
1,
"value":
int(3e8),
"script":
script.p2sh(script.p2wpkh(pub)),
"redeem":
script.p2wpkh(pub),
},
]
# sending back almost the same amount
vin = [TransactionInput(inp["txid"], inp["vout"]) for inp in inputs]
vout = [
TransactionOutput(inp["value"] - 1500, inp["script"]) for inp in inputs
]
tx = Transaction(vin=vin, vout=vout)
print("Unsigned transaction:")
print(hexlify(tx.serialize()).decode("utf-8"))
for i in range(len(inputs)):
inp = inputs[i]
script_type = inp["script"].script_type()
# legacy input
if script_type == "p2pkh":
h = tx.sighash_legacy(i, inp["script"])
sig = prv.sign(h)
tx.vin[i].script_sig = script.script_sig_p2pkh(sig, pub)
# native segwit
elif script_type == "p2wpkh":
sc = script.p2pkh_from_p2wpkh(inp["script"])
h = tx.sighash_segwit(i, sc, inp["value"])
sig = prv.sign(h)
tx.vin[i].witness = script.witness_p2wpkh(sig, pub)
# nested segwit
elif script_type == "p2sh":
if "redeem" in inp and inp["redeem"].script_type() == "p2wpkh":
sc = script.p2pkh_from_p2wpkh(inp["redeem"])
h = tx.sighash_segwit(i, sc, inp["value"])
sig = prv.sign(h)
tx.vin[i].script_sig = script.script_sig_p2sh(inp["redeem"])
tx.vin[i].witness = script.witness_p2wpkh(sig, pub)
else:
raise NotImplementedError("Script type is not supported")
else:
raise NotImplementedError("Script type is not supported")
print("Signed transaction:")
print(hexlify(tx.serialize()).decode("utf-8"))
