def update(self, window: 'ElectrumWindow'):
wallet = window.wallet
if type(wallet) != Multisig_Wallet:
return
assert isinstance(wallet,
Multisig_Wallet) # only here for type-hints in IDE
if self.listener is None:
self.logger.info("starting listener")
self.listener = Listener(self)
self.listener.start()
elif self.listener:
self.logger.info("shutting down listener")
self.listener.stop()
self.listener = None
self.keys = []
self.cosigner_list = []
for key, keystore in wallet.keystores.items():
xpub = keystore.get_master_public_key() # type: str
pubkey = BIP32Node.from_xkey(xpub).eckey.get_public_key_bytes(
compressed=True)
_hash = bh2u(crypto.sha256d(pubkey))
if not keystore.is_watching_only():
self.keys.append((key, _hash, window))
else:
self.cosigner_list.append((window, xpub, pubkey, _hash))
if self.listener:
self.listener.set_keyhashes([t[1] for t in self.keys])
def sign_message(self, sequence, message, password):
sig = None
try:
message = message.encode('utf8')
inputPath = self.get_derivation() + "/%d/%d" % sequence
msg_hash = sha256d(msg_magic(message))
inputHash = to_hexstr(msg_hash)
hasharray = []
hasharray.append({'hash': inputHash, 'keypath': inputPath})
hasharray = json.dumps(hasharray)
msg = ('{"sign":{"meta":"sign message", "data":%s}}' % hasharray).encode('utf8')
dbb_client = self.plugin.get_client(self)
if not dbb_client.is_paired():
raise Exception(_("Could not sign message."))
reply = dbb_client.hid_send_encrypt(msg)
self.handler.show_message(_("Signing message ...") + "\n\n" +
_("To continue, touch the Digital Bitbox's blinking light for 3 seconds.") + "\n\n" +
_("To cancel, briefly touch the blinking light or wait for the timeout."))
reply = dbb_client.hid_send_encrypt(msg) # Send twice, first returns an echo for smart verification (not implemented)
self.handler.finished()
if 'error' in reply:
raise Exception(reply['error']['message'])
if 'sign' not in reply:
raise Exception(_("Could not sign message."))
if 'recid' in reply['sign'][0]:
# firmware > v2.1.1
sig_string = binascii.unhexlify(reply['sign'][0]['sig'])
recid = int(reply['sign'][0]['recid'], 16)
sig = ecc.construct_sig65(sig_string, recid, True)
pubkey, compressed = ecc.ECPubkey.from_signature65(sig, msg_hash)
addr = public_key_to_p2pkh(pubkey.get_public_key_bytes(compressed=compressed))
if ecc.verify_message_with_address(addr, sig, message) is False:
raise Exception(_("Could not sign message"))
elif 'pubkey' in reply['sign'][0]:
# firmware <= v2.1.1
for recid in range(4):
sig_string = binascii.unhexlify(reply['sign'][0]['sig'])
sig = ecc.construct_sig65(sig_string, recid, True)
try:
addr = public_key_to_p2pkh(binascii.unhexlify(reply['sign'][0]['pubkey']))
if ecc.verify_message_with_address(addr, sig, message):
break
except Exception:
continue
else:
raise Exception(_("Could not sign message"))
except BaseException as e:
self.give_error(e)
return sig
def sign_message(self, sequence, message, password):
sig = None
try:
message = message.encode('utf8')
inputPath = self.get_derivation() + "/%d/%d" % sequence
msg_hash = sha256d(msg_magic(message))
inputHash = to_hexstr(msg_hash)
hasharray = []
hasharray.append({'hash': inputHash, 'keypath': inputPath})
hasharray = json.dumps(hasharray)
msg = ('{"sign":{"meta":"sign message", "data":%s}}' % hasharray).encode('utf8')
dbb_client = self.plugin.get_client(self)
if not dbb_client.is_paired():
raise Exception(_("Could not sign message."))
reply = dbb_client.hid_send_encrypt(msg)
self.handler.show_message(_("Signing message ...") + "\n\n" +
_("To continue, touch the Digital Bitbox's blinking light for 3 seconds.") + "\n\n" +
_("To cancel, briefly touch the blinking light or wait for the timeout."))
reply = dbb_client.hid_send_encrypt(msg) # Send twice, first returns an echo for smart verification (not implemented)
self.handler.finished()
if 'error' in reply:
raise Exception(reply['error']['message'])
if 'sign' not in reply:
raise Exception(_("Could not sign message."))
if 'recid' in reply['sign'][0]:
# firmware > v2.1.1
sig_string = binascii.unhexlify(reply['sign'][0]['sig'])
recid = int(reply['sign'][0]['recid'], 16)
sig = ecc.construct_sig65(sig_string, recid, True)
pubkey, compressed = ecc.ECPubkey.from_signature65(sig, msg_hash)
addr = public_key_to_p2pkh(pubkey.get_public_key_bytes(compressed=compressed))
if ecc.verify_message_with_address(addr, sig, message) is False:
raise Exception(_("Could not sign message"))
elif 'pubkey' in reply['sign'][0]:
# firmware <= v2.1.1
for recid in range(4):
sig_string = binascii.unhexlify(reply['sign'][0]['sig'])
sig = ecc.construct_sig65(sig_string, recid, True)
try:
addr = public_key_to_p2pkh(binascii.unhexlify(reply['sign'][0]['pubkey']))
if ecc.verify_message_with_address(addr, sig, message):
break
except Exception:
continue
else:
raise Exception(_("Could not sign message"))
except BaseException as e:
self.give_error(e)
return sig
def hid_send_encrypt(self, msg):
reply = ""
try:
secret = sha256d(self.password)
msg = EncodeAES(secret, msg)
reply = self.hid_send_plain(msg)
if 'ciphertext' in reply:
reply = DecodeAES(secret, ''.join(reply["ciphertext"]))
reply = to_string(reply, 'utf8')
reply = json.loads(reply)
if 'error' in reply:
self.password = None
except Exception as e:
print_error('Exception caught ' + str(e))
return reply
def hid_send_encrypt(self, msg):
reply = ""
try:
secret = sha256d(self.password)
msg = EncodeAES(secret, msg)
reply = self.hid_send_plain(msg)
if 'ciphertext' in reply:
reply = DecodeAES(secret, ''.join(reply["ciphertext"]))
reply = to_string(reply, 'utf8')
reply = json.loads(reply)
if 'error' in reply:
self.password = None
except Exception as e:
print_error('Exception caught ' + repr(e))
return reply
def update(self, window):
wallet = window.wallet
if type(wallet) != Multisig_Wallet:
return
if self.listener is None:
self.print_error("starting listener")
self.listener = Listener(self)
self.listener.start()
elif self.listener:
self.print_error("shutting down listener")
self.listener.stop()
self.listener = None
self.keys = []
self.cosigner_list = []
for key, keystore in wallet.keystores.items():
xpub = keystore.get_master_public_key()
pubkey = BIP32Node.from_xkey(xpub).eckey.get_public_key_bytes(compressed=True)
_hash = bh2u(crypto.sha256d(pubkey))
if not keystore.is_watching_only():
self.keys.append((key, _hash, window))
else:
self.cosigner_list.append((window, xpub, pubkey, _hash))
if self.listener:
self.listener.set_keyhashes([t[1] for t in self.keys])
def update(self, window):
wallet = window.wallet
if type(wallet) != Multisig_Wallet:
return
if self.listener is None:
self.print_error("starting listener")
self.listener = Listener(self)
self.listener.start()
elif self.listener:
self.print_error("shutting down listener")
self.listener.stop()
self.listener = None
self.keys = []
self.cosigner_list = []
for key, keystore in wallet.keystores.items():
xpub = keystore.get_master_public_key()
K = bip32.deserialize_xpub(xpub)[-1]
_hash = bh2u(crypto.sha256d(K))
if not keystore.is_watching_only():
self.keys.append((key, _hash, window))
else:
self.cosigner_list.append((window, xpub, K, _hash))
if self.listener:
self.listener.set_keyhashes([t[1] for t in self.keys])
def update(self, window):
wallet = window.wallet
if type(wallet) != Multisig_Wallet:
return
if self.listener is None:
self.print_error("starting listener")
self.listener = Listener(self)
self.listener.start()
elif self.listener:
self.print_error("shutting down listener")
self.listener.stop()
self.listener = None
self.keys = []
self.cosigner_list = []
for key, keystore in wallet.keystores.items():
xpub = keystore.get_master_public_key()
K = bip32.deserialize_xpub(xpub)[-1]
_hash = bh2u(crypto.sha256d(K))
if not keystore.is_watching_only():
self.keys.append((key, _hash, window))
else:
self.cosigner_list.append((window, xpub, K, _hash))
if self.listener:
self.listener.set_keyhashes([t[1] for t in self.keys])
def sign_transaction(self, tx, password):
if tx.is_complete():
return
try:
p2pkhTransaction = True
inputhasharray = []
hasharray = []
pubkeyarray = []
# Build hasharray from inputs
for i, txin in enumerate(tx.inputs()):
if txin.is_coinbase_input():
self.give_error(
"Coinbase not supported") # should never happen
if txin.script_type != 'p2pkh':
p2pkhTransaction = False
my_pubkey, inputPath = self.find_my_pubkey_in_txinout(txin)
if not inputPath:
self.give_error("No matching pubkey for sign_transaction"
) # should never happen
inputPath = convert_bip32_intpath_to_strpath(inputPath)
inputHash = sha256d(bfh(tx.serialize_preimage(i)))
hasharray_i = {
'hash': to_hexstr(inputHash),
'keypath': inputPath
}
hasharray.append(hasharray_i)
inputhasharray.append(inputHash)
# Build pubkeyarray from outputs
for txout in tx.outputs():
assert txout.address
if txout.is_change:
changePubkey, changePath = self.find_my_pubkey_in_txinout(
txout)
assert changePath
changePath = convert_bip32_intpath_to_strpath(changePath)
changePubkey = changePubkey.hex()
pubkeyarray_i = {
'pubkey': changePubkey,
'keypath': changePath
}
pubkeyarray.append(pubkeyarray_i)
# Special serialization of the unsigned transaction for
# the mobile verification app.
# At the moment, verification only works for p2pkh transactions.
if p2pkhTransaction:
tx_copy = copy.deepcopy(tx)
# monkey-patch method of tx_copy instance to change serialization
def input_script(self,
txin: PartialTxInput,
*,
estimate_size=False):
if txin.script_type == 'p2pkh':
return Transaction.get_preimage_script(txin)
raise Exception("unsupported type %s" % txin.script_type)
tx_copy.input_script = input_script.__get__(
tx_copy, PartialTransaction)
tx_dbb_serialized = tx_copy.serialize_to_network()
else:
# We only need this for the signing echo / verification.
tx_dbb_serialized = None
# Build sign command
dbb_signatures = []
steps = math.ceil(1.0 * len(hasharray) / self.maxInputs)
for step in range(int(steps)):
hashes = hasharray[step * self.maxInputs:(step + 1) *
self.maxInputs]
msg = {
"sign": {
"data": hashes,
"checkpub": pubkeyarray,
},
}
if tx_dbb_serialized is not None:
msg["sign"]["meta"] = to_hexstr(sha256d(tx_dbb_serialized))
msg = json.dumps(msg).encode('ascii')
dbb_client = self.plugin.get_client(self)
if not dbb_client.is_paired():
raise Exception("Could not sign transaction.")
reply = dbb_client.hid_send_encrypt(msg)
if 'error' in reply:
raise Exception(reply['error']['message'])
if 'echo' not in reply:
raise Exception("Could not sign transaction.")
if self.plugin.is_mobile_paired(
) and tx_dbb_serialized is not None:
reply['tx'] = tx_dbb_serialized
self.plugin.comserver_post_notification(reply)
if steps > 1:
self.handler.show_message(
_("Signing large transaction. Please be patient ...") +
"\n\n" +
_("To continue, touch the Digital Bitbox's blinking light for 3 seconds."
) + " " +
_("(Touch {} of {})").format((step + 1), steps) +
"\n\n" +
_("To cancel, briefly touch the blinking light or wait for the timeout."
) + "\n\n")
else:
self.handler.show_message(
_("Signing transaction...") + "\n\n" +
_("To continue, touch the Digital Bitbox's blinking light for 3 seconds."
) + "\n\n" +
_("To cancel, briefly touch the blinking light or wait for the timeout."
))
# Send twice, first returns an echo for smart verification
reply = dbb_client.hid_send_encrypt(msg)
self.handler.finished()
if 'error' in reply:
if reply["error"].get('code') in (600, 601):
# aborted via LED short touch or timeout
raise UserCancelled()
raise Exception(reply['error']['message'])
if 'sign' not in reply:
raise Exception("Could not sign transaction.")
dbb_signatures.extend(reply['sign'])
# Fill signatures
if len(dbb_signatures) != len(tx.inputs()):
raise Exception("Incorrect number of transactions signed."
) # Should never occur
for i, txin in enumerate(tx.inputs()):
for pubkey_bytes in txin.pubkeys:
if txin.is_complete():
break
signed = dbb_signatures[i]
if 'recid' in signed:
# firmware > v2.1.1
recid = int(signed['recid'], 16)
s = binascii.unhexlify(signed['sig'])
h = inputhasharray[i]
pk = ecc.ECPubkey.from_sig_string(s, recid, h)
pk = pk.get_public_key_hex(compressed=True)
elif 'pubkey' in signed:
# firmware <= v2.1.1
pk = signed['pubkey']
if pk != pubkey_bytes.hex():
continue
sig_r = int(signed['sig'][:64], 16)
sig_s = int(signed['sig'][64:], 16)
sig = ecc.der_sig_from_r_and_s(sig_r, sig_s)
sig = to_hexstr(sig) + '01'
tx.add_signature_to_txin(txin_idx=i,
signing_pubkey=pubkey_bytes.hex(),
sig=sig)
except UserCancelled:
raise
except BaseException as e:
self.give_error(e, True)
else:
_logger.info(f"Transaction is_complete {tx.is_complete()}")
def derive_keys(x):
h = sha256d(x)
h = hashlib.sha512(h).digest()
return (h[:32], h[32:])
def test_sha256d(self):
self.assertEqual(b'\x95MZI\xfdp\xd9\xb8\xbc\xdb5\xd2R&x)\x95\x7f~\xf7\xfalt\xf8\x84\x19\xbd\xc5\xe8"\t\xf4',
sha256d(u"test"))
def test_sha256d(self):
self.assertEqual(
b'\x95MZI\xfdp\xd9\xb8\xbc\xdb5\xd2R&x)\x95\x7f~\xf7\xfalt\xf8\x84\x19\xbd\xc5\xe8"\t\xf4',
sha256d(u"test"))
def sign_transaction(self, tx, password):
if tx.is_complete():
return
try:
p2pkhTransaction = True
derivations = self.get_tx_derivations(tx)
inputhasharray = []
hasharray = []
pubkeyarray = []
# Build hasharray from inputs
for i, txin in enumerate(tx.inputs()):
if txin['type'] == 'coinbase':
self.give_error("Coinbase not supported") # should never happen
if txin['type'] != 'p2pkh':
p2pkhTransaction = False
for x_pubkey in txin['x_pubkeys']:
if x_pubkey in derivations:
index = derivations.get(x_pubkey)
inputPath = "%s/%d/%d" % (self.get_derivation(), index[0], index[1])
inputHash = sha256d(binascii.unhexlify(tx.serialize_preimage(i)))
hasharray_i = {'hash': to_hexstr(inputHash), 'keypath': inputPath}
hasharray.append(hasharray_i)
inputhasharray.append(inputHash)
break
else:
self.give_error("No matching x_key for sign_transaction") # should never happen
# Build pubkeyarray from outputs
for o in tx.outputs():
assert o.type == TYPE_ADDRESS
info = tx.output_info.get(o.address)
if info is not None:
index = info.address_index
changePath = self.get_derivation() + "/%d/%d" % index
changePubkey = self.derive_pubkey(index[0], index[1])
pubkeyarray_i = {'pubkey': changePubkey, 'keypath': changePath}
pubkeyarray.append(pubkeyarray_i)
# Special serialization of the unsigned transaction for
# the mobile verification app.
# At the moment, verification only works for p2pkh transactions.
if p2pkhTransaction:
class CustomTXSerialization(Transaction):
@classmethod
def input_script(self, txin, estimate_size=False):
if txin['type'] == 'p2pkh':
return Transaction.get_preimage_script(txin)
if txin['type'] == 'p2sh':
# Multisig verification has partial support, but is disabled. This is the
# expected serialization though, so we leave it here until we activate it.
return '00' + push_script(Transaction.get_preimage_script(txin))
raise Exception("unsupported type %s" % txin['type'])
tx_dbb_serialized = CustomTXSerialization(tx.serialize()).serialize_to_network()
else:
# We only need this for the signing echo / verification.
tx_dbb_serialized = None
# Build sign command
dbb_signatures = []
steps = math.ceil(1.0 * len(hasharray) / self.maxInputs)
for step in range(int(steps)):
hashes = hasharray[step * self.maxInputs : (step + 1) * self.maxInputs]
msg = {
"sign": {
"data": hashes,
"checkpub": pubkeyarray,
},
}
if tx_dbb_serialized is not None:
msg["sign"]["meta"] = to_hexstr(sha256d(tx_dbb_serialized))
msg = json.dumps(msg).encode('ascii')
dbb_client = self.plugin.get_client(self)
if not dbb_client.is_paired():
raise Exception("Could not sign transaction.")
reply = dbb_client.hid_send_encrypt(msg)
if 'error' in reply:
raise Exception(reply['error']['message'])
if 'echo' not in reply:
raise Exception("Could not sign transaction.")
if self.plugin.is_mobile_paired() and tx_dbb_serialized is not None:
reply['tx'] = tx_dbb_serialized
self.plugin.comserver_post_notification(reply)
if steps > 1:
self.handler.show_message(_("Signing large transaction. Please be patient ...") + "\n\n" +
_("To continue, touch the Digital Bitbox's blinking light for 3 seconds.") + " " +
_("(Touch {} of {})").format((step + 1), steps) + "\n\n" +
_("To cancel, briefly touch the blinking light or wait for the timeout.") + "\n\n")
else:
self.handler.show_message(_("Signing transaction...") + "\n\n" +
_("To continue, touch the Digital Bitbox's blinking light for 3 seconds.") + "\n\n" +
_("To cancel, briefly touch the blinking light or wait for the timeout."))
# Send twice, first returns an echo for smart verification
reply = dbb_client.hid_send_encrypt(msg)
self.handler.finished()
if 'error' in reply:
if reply["error"].get('code') in (600, 601):
# aborted via LED short touch or timeout
raise UserCancelled()
raise Exception(reply['error']['message'])
if 'sign' not in reply:
raise Exception("Could not sign transaction.")
dbb_signatures.extend(reply['sign'])
# Fill signatures
if len(dbb_signatures) != len(tx.inputs()):
raise Exception("Incorrect number of transactions signed.") # Should never occur
for i, txin in enumerate(tx.inputs()):
num = txin['num_sig']
for pubkey in txin['pubkeys']:
signatures = list(filter(None, txin['signatures']))
if len(signatures) == num:
break # txin is complete
ii = txin['pubkeys'].index(pubkey)
signed = dbb_signatures[i]
if 'recid' in signed:
# firmware > v2.1.1
recid = int(signed['recid'], 16)
s = binascii.unhexlify(signed['sig'])
h = inputhasharray[i]
pk = ecc.ECPubkey.from_sig_string(s, recid, h)
pk = pk.get_public_key_hex(compressed=True)
elif 'pubkey' in signed:
# firmware <= v2.1.1
pk = signed['pubkey']
if pk != pubkey:
continue
sig_r = int(signed['sig'][:64], 16)
sig_s = int(signed['sig'][64:], 16)
sig = ecc.der_sig_from_r_and_s(sig_r, sig_s)
sig = to_hexstr(sig) + '01'
tx.add_signature_to_txin(i, ii, sig)
except UserCancelled:
raise
except BaseException as e:
self.give_error(e, True)
else:
print_error("Transaction is_complete", tx.is_complete())
tx.raw = tx.serialize()
def derive_keys(x):
h = sha256d(x)
h = hashlib.sha512(h).digest()
return (h[:32],h[32:])
def sign_transaction(self, tx, password):
if tx.is_complete():
return
try:
p2pkhTransaction = True
derivations = self.get_tx_derivations(tx)
inputhasharray = []
hasharray = []
pubkeyarray = []
# Build hasharray from inputs
for i, txin in enumerate(tx.inputs()):
if txin['type'] == 'coinbase':
self.give_error("Coinbase not supported") # should never happen
if txin['type'] != 'p2pkh':
p2pkhTransaction = False
for x_pubkey in txin['x_pubkeys']:
if x_pubkey in derivations:
index = derivations.get(x_pubkey)
inputPath = "%s/%d/%d" % (self.get_derivation(), index[0], index[1])
inputHash = sha256d(binascii.unhexlify(tx.serialize_preimage(i)))
hasharray_i = {'hash': to_hexstr(inputHash), 'keypath': inputPath}
hasharray.append(hasharray_i)
inputhasharray.append(inputHash)
break
else:
self.give_error("No matching x_key for sign_transaction") # should never happen
# Build pubkeyarray from outputs
for o in tx.outputs():
assert o.type == TYPE_ADDRESS
info = tx.output_info.get(o.address)
if info is not None:
index = info.address_index
changePath = self.get_derivation() + "/%d/%d" % index
changePubkey = self.derive_pubkey(index[0], index[1])
pubkeyarray_i = {'pubkey': changePubkey, 'keypath': changePath}
pubkeyarray.append(pubkeyarray_i)
# Special serialization of the unsigned transaction for
# the mobile verification app.
# At the moment, verification only works for p2pkh transactions.
if p2pkhTransaction:
class CustomTXSerialization(Transaction):
@classmethod
def input_script(self, txin, estimate_size=False):
if txin['type'] == 'p2pkh':
return Transaction.get_preimage_script(txin)
if txin['type'] == 'p2sh':
# Multisig verification has partial support, but is disabled. This is the
# expected serialization though, so we leave it here until we activate it.
return '00' + push_script(Transaction.get_preimage_script(txin))
raise Exception("unsupported type %s" % txin['type'])
tx_dbb_serialized = CustomTXSerialization(tx.serialize()).serialize_to_network()
else:
# We only need this for the signing echo / verification.
tx_dbb_serialized = None
# Build sign command
dbb_signatures = []
steps = math.ceil(1.0 * len(hasharray) / self.maxInputs)
for step in range(int(steps)):
hashes = hasharray[step * self.maxInputs : (step + 1) * self.maxInputs]
msg = {
"sign": {
"data": hashes,
"checkpub": pubkeyarray,
},
}
if tx_dbb_serialized is not None:
msg["sign"]["meta"] = to_hexstr(sha256d(tx_dbb_serialized))
msg = json.dumps(msg).encode('ascii')
dbb_client = self.plugin.get_client(self)
if not dbb_client.is_paired():
raise Exception("Could not sign transaction.")
reply = dbb_client.hid_send_encrypt(msg)
if 'error' in reply:
raise Exception(reply['error']['message'])
if 'echo' not in reply:
raise Exception("Could not sign transaction.")
if self.plugin.is_mobile_paired() and tx_dbb_serialized is not None:
reply['tx'] = tx_dbb_serialized
self.plugin.comserver_post_notification(reply)
if steps > 1:
self.handler.show_message(_("Signing large transaction. Please be patient ...") + "\n\n" +
_("To continue, touch the Digital Bitbox's blinking light for 3 seconds.") + " " +
_("(Touch {} of {})").format((step + 1), steps) + "\n\n" +
_("To cancel, briefly touch the blinking light or wait for the timeout.") + "\n\n")
else:
self.handler.show_message(_("Signing transaction...") + "\n\n" +
_("To continue, touch the Digital Bitbox's blinking light for 3 seconds.") + "\n\n" +
_("To cancel, briefly touch the blinking light or wait for the timeout."))
# Send twice, first returns an echo for smart verification
reply = dbb_client.hid_send_encrypt(msg)
self.handler.finished()
if 'error' in reply:
if reply["error"].get('code') in (600, 601):
# aborted via LED short touch or timeout
raise UserCancelled()
raise Exception(reply['error']['message'])
if 'sign' not in reply:
raise Exception("Could not sign transaction.")
dbb_signatures.extend(reply['sign'])
# Fill signatures
if len(dbb_signatures) != len(tx.inputs()):
raise Exception("Incorrect number of transactions signed.") # Should never occur
for i, txin in enumerate(tx.inputs()):
num = txin['num_sig']
for pubkey in txin['pubkeys']:
signatures = list(filter(None, txin['signatures']))
if len(signatures) == num:
break # txin is complete
ii = txin['pubkeys'].index(pubkey)
signed = dbb_signatures[i]
if 'recid' in signed:
# firmware > v2.1.1
recid = int(signed['recid'], 16)
s = binascii.unhexlify(signed['sig'])
h = inputhasharray[i]
pk = ecc.ECPubkey.from_sig_string(s, recid, h)
pk = pk.get_public_key_hex(compressed=True)
elif 'pubkey' in signed:
# firmware <= v2.1.1
pk = signed['pubkey']
if pk != pubkey:
continue
sig_r = int(signed['sig'][:64], 16)
sig_s = int(signed['sig'][64:], 16)
sig = ecc.der_sig_from_r_and_s(sig_r, sig_s)
sig = to_hexstr(sig) + '01'
tx.add_signature_to_txin(i, ii, sig)
except UserCancelled:
raise
except BaseException as e:
self.give_error(e, True)
else:
print_error("Transaction is_complete", tx.is_complete())
tx.raw = tx.serialize()
txin.script_type = script_type
expiry = b2x(lx(b2x(locktime)))
redeem_script = compile([
expiry, 'OP_CHECKLOCKTIMEVERIFY', 'OP_DROP', pubkey, 'OP_CHECKSIG'])
txin.redeem_script = x(redeem_script)
# Build the Transaction Output
txout = PartialTxOutput.from_address_and_value(address, sats_less_fees)
# Build and sign the transaction
tx = P2SHPartialTransaction.from_io([txin], [txout], locktime=locktime)
tx.version = 1
sig = tx.sign_txin(0, privkey)
txin.script_sig = x(compile([sig , redeem_script]))
# Get the serialized txn and compute txid
txn = tx.serialize()
txid = b2lx(sha256d(x(txn)))
# Ensure we arrived at where we intended
if txid != otxid:
print("Did not achive target TXID hash")
print("Perhaps R-value hashing needs to be reverted")
Print("See: https://redd.it/jf97pc")
# Display results
print("pubk:", pubkey)
print("priv:", b2x(privkey))
print("txid:", txid)
print("txn:", txn)
