from common import * from trezor.utils import chunks from trezor.crypto import bip32, bip39 from trezor.messages.SignTx import SignTx from trezor.messages.TxInputType import TxInputType from trezor.messages.TxOutputType import TxOutputType from trezor.messages.TxRequest import TxRequest from trezor.messages.TxAck import TxAck from trezor.messages.TransactionType import TransactionType from trezor.messages.RequestType import TXINPUT, TXOUTPUT, TXFINISHED from trezor.messages.TxRequestDetailsType import TxRequestDetailsType from trezor.messages.TxRequestSerializedType import TxRequestSerializedType from trezor.messages import InputScriptType from trezor.messages import OutputScriptType from apps.common import coins from apps.wallet.sign_tx import signing class TestSignSegwitTxP2WPKHInP2SH(unittest.TestCase): # pylint: disable=C0301 def test_send_p2wpkh_in_p2sh(self): coin = coins.by_name('Testnet') seed = bip39.seed(' '.join(['all'] * 12), '') root = bip32.from_seed(seed, 'secp256k1') inp1 = TxInputType( # 49'/1'/0'/1/0" - 2N1LGaGg836mqSQqiuUBLfcyGBhyZbremDX address_n=[49 | 0x80000000, 1 | 0x80000000, 0 | 0x80000000, 1, 0], amount=123456789, prev_hash=unhexlify('20912f98ea3ed849042efed0fdac8cb4fc301961c5988cba56902d8ffb61c337'), prev_index=0, script_type=InputScriptType.SPENDP2SHWITNESS, sequence=0xffffffff, multisig=None, ) out1 = TxOutputType( address='mhRx1CeVfaayqRwq5zgRQmD7W5aWBfD5mC', amount=12300000, script_type=OutputScriptType.PAYTOADDRESS, address_n=[], multisig=None, ) out2 = TxOutputType( address='2N1LGaGg836mqSQqiuUBLfcyGBhyZbremDX', script_type=OutputScriptType.PAYTOADDRESS, amount=123456789 - 11000 - 12300000, address_n=[], multisig=None, ) tx = SignTx(coin_name='Testnet', version=None, lock_time=None, inputs_count=1, outputs_count=2) messages = [ None, # check fee TxRequest(request_type=TXINPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None)), TxAck(tx=TransactionType(inputs=[inp1])), TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=None), TxAck(tx=TransactionType(outputs=[out1])), signing.UiConfirmOutput(out1, coin), True, TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=1, tx_hash=None), serialized=None), TxAck(tx=TransactionType(outputs=[out2])), signing.UiConfirmOutput(out2, coin), True, signing.UiConfirmTotal(123445789, 11000, coin), True, # sign tx TxRequest(request_type=TXINPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=None), TxAck(tx=TransactionType(inputs=[inp1])), TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=TxRequestSerializedType( # returned serialized inp1 serialized_tx=unhexlify('0100000000010137c361fb8f2d9056ba8c98c5611930fcb48cacfdd0fe2e0449d83eea982f91200000000017160014d16b8c0680c61fc6ed2e407455715055e41052f5ffffffff'), )), TxAck(tx=TransactionType(outputs=[out1])), TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=1, tx_hash=None), serialized=TxRequestSerializedType( # returned serialized out1 serialized_tx=unhexlify('02e0aebb00000000001976a91414fdede0ddc3be652a0ce1afbc1b509a55b6b94888ac'), signature_index=None, signature=None, )), TxAck(tx=TransactionType(outputs=[out2])), # segwit TxRequest(request_type=TXINPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=TxRequestSerializedType( # returned serialized out2 serialized_tx=unhexlify('3df39f060000000017a91458b53ea7f832e8f096e896b8713a8c6df0e892ca87'), signature_index=None, signature=None, )), TxAck(tx=TransactionType(inputs=[inp1])), TxRequest(request_type=TXFINISHED, details=None, serialized=TxRequestSerializedType( serialized_tx=unhexlify('02483045022100ccd253bfdf8a5593cd7b6701370c531199f0f05a418cd547dfc7da3f21515f0f02203fa08a0753688871c220648f9edadbdb98af42e5d8269364a326572cf703895b012103e7bfe10708f715e8538c92d46ca50db6f657bbc455b7494e6a0303ccdb868b7900000000'), signature_index=0, signature=unhexlify('3045022100ccd253bfdf8a5593cd7b6701370c531199f0f05a418cd547dfc7da3f21515f0f02203fa08a0753688871c220648f9edadbdb98af42e5d8269364a326572cf703895b'), )), ] signer = signing.sign_tx(tx, root) for request, response in chunks(messages, 2): self.assertEqualEx(signer.send(request), response) with self.assertRaises(StopIteration): signer.send(None) def test_send_p2wpkh_in_p2sh_change(self): coin = coins.by_name('Testnet') seed = bip39.seed(' '.join(['all'] * 12), '') root = bip32.from_seed(seed, 'secp256k1') inp1 = TxInputType( # 49'/1'/0'/1/0" - 2N1LGaGg836mqSQqiuUBLfcyGBhyZbremDX address_n=[49 | 0x80000000, 1 | 0x80000000, 0 | 0x80000000, 1, 0], amount=123456789, prev_hash=unhexlify('20912f98ea3ed849042efed0fdac8cb4fc301961c5988cba56902d8ffb61c337'), prev_index=0, script_type=InputScriptType.SPENDP2SHWITNESS, sequence=0xffffffff, multisig=None, ) out1 = TxOutputType( address='mhRx1CeVfaayqRwq5zgRQmD7W5aWBfD5mC', amount=12300000, script_type=OutputScriptType.PAYTOADDRESS, address_n=[], multisig=None, ) out2 = TxOutputType( address_n=[49 | 0x80000000, 1 | 0x80000000, 0 | 0x80000000, 1, 0], script_type=OutputScriptType.PAYTOP2SHWITNESS, amount=123456789 - 11000 - 12300000, address=None, multisig=None, ) tx = SignTx(coin_name='Testnet', version=None, lock_time=None, inputs_count=1, outputs_count=2) messages = [ None, # check fee TxRequest(request_type=TXINPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None)), TxAck(tx=TransactionType(inputs=[inp1])), TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=None), TxAck(tx=TransactionType(outputs=[out1])), signing.UiConfirmOutput(out1, coin), True, TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=1, tx_hash=None), serialized=None), TxAck(tx=TransactionType(outputs=[out2])), signing.UiConfirmTotal(12300000, 11000, coin), True, # sign tx TxRequest(request_type=TXINPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=None), TxAck(tx=TransactionType(inputs=[inp1])), TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=TxRequestSerializedType( # returned serialized inp1 serialized_tx=unhexlify( '0100000000010137c361fb8f2d9056ba8c98c5611930fcb48cacfdd0fe2e0449d83eea982f91200000000017160014d16b8c0680c61fc6ed2e407455715055e41052f5ffffffff'), )), # the out has to be cloned not to send the same object which was modified TxAck(tx=TransactionType(outputs=[TxOutputType(**out1.__dict__)])), TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=1, tx_hash=None), serialized=TxRequestSerializedType( # returned serialized out1 serialized_tx=unhexlify( '02e0aebb00000000001976a91414fdede0ddc3be652a0ce1afbc1b509a55b6b94888ac'), signature_index=None, signature=None, )), TxAck(tx=TransactionType(outputs=[TxOutputType(**out2.__dict__)])), # segwit TxRequest(request_type=TXINPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=TxRequestSerializedType( # returned serialized out2 serialized_tx=unhexlify( '3df39f060000000017a91458b53ea7f832e8f096e896b8713a8c6df0e892ca87'), signature_index=None, signature=None, )), TxAck(tx=TransactionType(inputs=[inp1])), TxRequest(request_type=TXFINISHED, details=None, serialized=TxRequestSerializedType( serialized_tx=unhexlify( '02483045022100ccd253bfdf8a5593cd7b6701370c531199f0f05a418cd547dfc7da3f21515f0f02203fa08a0753688871c220648f9edadbdb98af42e5d8269364a326572cf703895b012103e7bfe10708f715e8538c92d46ca50db6f657bbc455b7494e6a0303ccdb868b7900000000'), signature_index=0, signature=unhexlify('3045022100ccd253bfdf8a5593cd7b6701370c531199f0f05a418cd547dfc7da3f21515f0f02203fa08a0753688871c220648f9edadbdb98af42e5d8269364a326572cf703895b'), )), ] signer = signing.sign_tx(tx, root) for request, response in chunks(messages, 2): self.assertEqualEx(signer.send(request), response) with self.assertRaises(StopIteration): signer.send(None) # see https://github.com/trezor/trezor-mcu/commit/6b615ce40567cc0da0b3b38ff668916aaae9dd4b#commitcomment-25505919 # for the rational behind this attack def test_send_p2wpkh_in_p2sh_attack_amount(self): coin = coins.by_name('Testnet') seed = bip39.seed(' '.join(['all'] * 12), '') root = bip32.from_seed(seed, 'secp256k1') inp1 = TxInputType( # 49'/1'/0'/1/0" - 2N1LGaGg836mqSQqiuUBLfcyGBhyZbremDX address_n=[49 | 0x80000000, 1 | 0x80000000, 0 | 0x80000000, 1, 0], amount=10, prev_hash=unhexlify('20912f98ea3ed849042efed0fdac8cb4fc301961c5988cba56902d8ffb61c337'), prev_index=0, script_type=InputScriptType.SPENDP2SHWITNESS, sequence=0xffffffff, multisig=None, ) inpattack = TxInputType( # 49'/1'/0'/1/0" - 2N1LGaGg836mqSQqiuUBLfcyGBhyZbremDX address_n=[49 | 0x80000000, 1 | 0x80000000, 0 | 0x80000000, 1, 0], amount=9, # modified! prev_hash=unhexlify('20912f98ea3ed849042efed0fdac8cb4fc301961c5988cba56902d8ffb61c337'), prev_index=0, script_type=InputScriptType.SPENDP2SHWITNESS, sequence=0xffffffff, multisig=None, ) out1 = TxOutputType( address='mhRx1CeVfaayqRwq5zgRQmD7W5aWBfD5mC', amount=8, script_type=OutputScriptType.PAYTOADDRESS, address_n=[], multisig=None, ) out2 = TxOutputType( address_n=[49 | 0x80000000, 1 | 0x80000000, 0 | 0x80000000, 1, 0], script_type=OutputScriptType.PAYTOP2SHWITNESS, amount=1, address=None, multisig=None, ) tx = SignTx(coin_name='Testnet', version=None, lock_time=None, inputs_count=1, outputs_count=2) messages = [ None, # check fee TxRequest(request_type=TXINPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None)), TxAck(tx=TransactionType(inputs=[inpattack])), TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=None), TxAck(tx=TransactionType(outputs=[out1])), signing.UiConfirmOutput(out1, coin), True, TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=1, tx_hash=None), serialized=None), TxAck(tx=TransactionType(outputs=[out2])), signing.UiConfirmTotal(8, 0, coin), True, TxRequest(request_type=TXINPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=None), TxAck(tx=TransactionType(inputs=[inp1])), TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=TxRequestSerializedType( # returned serialized inpattack serialized_tx=unhexlify( '0100000000010137c361fb8f2d9056ba8c98c5611930fcb48cacfdd0fe2e0449d83eea982f91200000000017160014d16b8c0680c61fc6ed2e407455715055e41052f5ffffffff'), )), # the out has to be cloned not to send the same object which was modified TxAck(tx=TransactionType(outputs=[TxOutputType(**out1.__dict__)])), TxRequest(request_type=TXOUTPUT, details=TxRequestDetailsType(request_index=1, tx_hash=None), serialized=TxRequestSerializedType( # returned serialized out1 serialized_tx=unhexlify( '0208000000000000001976a91414fdede0ddc3be652a0ce1afbc1b509a55b6b94888ac'), signature_index=None, signature=None, )), TxAck(tx=TransactionType(outputs=[TxOutputType(**out2.__dict__)])), # segwit TxRequest(request_type=TXINPUT, details=TxRequestDetailsType(request_index=0, tx_hash=None), serialized=TxRequestSerializedType( # returned serialized out2 serialized_tx=unhexlify( '010000000000000017a91458b53ea7f832e8f096e896b8713a8c6df0e892ca87'), signature_index=None, signature=None, )), TxAck(tx=TransactionType(inputs=[inp1])), TxRequest(request_type=TXFINISHED, details=None) ] signer = signing.sign_tx(tx, root) i = 0 messages_count = int(len(messages) / 2) for request, response in chunks(messages, 2): if i == messages_count - 1: # last message should throw SigningError self.assertRaises(signing.SigningError, signer.send, request) else: self.assertEqualEx(signer.send(request), response) i += 1 with self.assertRaises(StopIteration): signer.send(None) def assertEqualEx(self, a, b): # hack to avoid adding __eq__ to signing.Ui* classes if ((isinstance(a, signing.UiConfirmOutput) and isinstance(b, signing.UiConfirmOutput)) or (isinstance(a, signing.UiConfirmTotal) and isinstance(b, signing.UiConfirmTotal))): return self.assertEqual(a.__dict__, b.__dict__) else: return self.assertEqual(a, b) if __name__ == '__main__': unittest.main()