def get_address(self, offset=0, is_change=False, sort_keys=True):
"""
If is_change=True, then we display change addresses.
If is_change=False we display receive addresses.
sort_keys is for expert users only and should be left as True
"""
assert type(is_change) is bool, is_change
assert type(offset) is int and offset >= 0, offset
sec_hexes_to_use = []
for key_record in self.key_records:
hdpubkey = HDPublicKey.parse(key_record["xpub_parent"])
if is_change is True:
account = key_record["account_index"] + 1
else:
account = key_record["account_index"]
leaf_xpub = hdpubkey.child(account).child(offset)
sec_hexes_to_use.append(leaf_xpub.sec().hex())
commands = [number_to_op_code(self.quorum_m)]
if sort_keys:
# BIP67 lexicographical sorting for sortedmulti
commands.extend([bytes.fromhex(x) for x in sorted(sec_hexes_to_use)])
else:
commands.extend([bytes.fromhex(x) for x in sec_hexes_to_use])
commands.append(number_to_op_code(len(self.key_records)))
commands.append(174) # OP_CHECKMULTISIG
witness_script = WitnessScript(commands)
redeem_script = P2WSHScriptPubKey(sha256(witness_script.raw_serialize()))
return redeem_script.address(network=self.network)
def _get_address(pubkey_dicts, quorum_m, quorum_n, index, is_testnet):
sec_hexes_to_use = []
for pubkey_dict in pubkey_dicts:
leaf_xpub = pubkey_dict["child_pubkey_obj"].child(index=index)
sec_hexes_to_use.append(leaf_xpub.sec().hex())
commands = [OP_CODE_NAMES_LOOKUP["OP_{}".format(quorum_m)]]
commands.extend([bytes.fromhex(x) for x in sorted(sec_hexes_to_use)]) # BIP67
commands.append(OP_CODE_NAMES_LOOKUP["OP_{}".format(quorum_n)])
commands.append(OP_CODE_NAMES_LOOKUP["OP_CHECKMULTISIG"])
witness_script = WitnessScript(commands)
redeem_script = P2WSHScriptPubKey(sha256(witness_script.raw_serialize()))
return redeem_script.address(testnet=is_testnet)