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core/sign_tx: Get rid of internal TxOutputBinType messages.

Browse Source
pull/985/head
Andrew Kozlik 4 years ago committed by Andrew Kozlik
parent 9f9618944a
commit 7370077d0c
7 changed files with 53 additions and 44 deletions
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43
core/src/apps/wallet/sign_tx/bitcoin.py
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@ -128,14 +128,12 @@ class Bitcoin:
await self.process_input(txi) await self.process_input(txi)
async def step2_confirm_outputs(self) -> None: async def step2_confirm_outputs(self) -> None:
txo_bin = TxOutputBinType()
for i in range(self.tx.outputs_count): for i in range(self.tx.outputs_count):
# STAGE_REQUEST_3_OUTPUT # STAGE_REQUEST_3_OUTPUT
txo = await helpers.request_tx_output(self.tx_req, i, self.coin) txo = await helpers.request_tx_output(self.tx_req, i, self.coin)
txo_bin.amount = txo.amount script_pubkey = self.output_derive_script(txo)
txo_bin.script_pubkey = self.output_derive_script(txo) self.weight.add_output(script_pubkey)
self.weight.add_output(txo_bin.script_pubkey) await self.confirm_output(txo, script_pubkey)
await self.confirm_output(txo, txo_bin)
async def step3_confirm_tx(self) -> None: async def step3_confirm_tx(self) -> None:
fee = self.total_in - self.total_out fee = self.total_in - self.total_out
@ -218,15 +216,15 @@ class Bitcoin:
self.bip143_in += txi.amount self.bip143_in += txi.amount
self.total_in += txi.amount self.total_in += txi.amount
async def confirm_output(self, txo: TxOutputType, txo_bin: TxOutputBinType) -> None: async def confirm_output(self, txo: TxOutputType, script_pubkey: bytes) -> None:
if self.change_out == 0 and self.output_is_change(txo): if self.change_out == 0 and self.output_is_change(txo):
# output is change and does not need confirmation # output is change and does not need confirmation
self.change_out = txo.amount self.change_out = txo.amount
elif not await helpers.confirm_output(txo, self.coin): elif not await helpers.confirm_output(txo, self.coin):
raise SigningError(FailureType.ActionCancelled, "Output cancelled") raise SigningError(FailureType.ActionCancelled, "Output cancelled")
self.write_tx_output(self.h_confirmed, txo_bin) self.write_tx_output(self.h_confirmed, txo, script_pubkey)
self.hash143_add_output(txo_bin) self.hash143_add_output(txo, script_pubkey)
self.total_out += txo.amount self.total_out += txo.amount
def on_negative_fee(self) -> None: def on_negative_fee(self) -> None:
@ -337,14 +335,12 @@ class Bitcoin:
writers.write_varint(h_sign, self.tx.outputs_count) writers.write_varint(h_sign, self.tx.outputs_count)
txo_bin = TxOutputBinType()
for i in range(self.tx.outputs_count): for i in range(self.tx.outputs_count):
# STAGE_REQUEST_4_OUTPUT # STAGE_REQUEST_4_OUTPUT
txo = await helpers.request_tx_output(self.tx_req, i, self.coin) txo = await helpers.request_tx_output(self.tx_req, i, self.coin)
txo_bin.amount = txo.amount script_pubkey = self.output_derive_script(txo)
txo_bin.script_pubkey = self.output_derive_script(txo) self.write_tx_output(h_check, txo, script_pubkey)
self.write_tx_output(h_check, txo_bin) self.write_tx_output(h_sign, txo, script_pubkey)
self.write_tx_output(h_sign, txo_bin)
writers.write_uint32(h_sign, self.tx.lock_time) writers.write_uint32(h_sign, self.tx.lock_time)
writers.write_uint32(h_sign, self.get_hash_type()) writers.write_uint32(h_sign, self.get_hash_type())
@ -369,10 +365,8 @@ class Bitcoin:
async def serialize_output(self, i: int) -> None: async def serialize_output(self, i: int) -> None:
# STAGE_REQUEST_5_OUTPUT # STAGE_REQUEST_5_OUTPUT
txo = await helpers.request_tx_output(self.tx_req, i, self.coin) txo = await helpers.request_tx_output(self.tx_req, i, self.coin)
txo_bin = TxOutputBinType() script_pubkey = self.output_derive_script(txo)
txo_bin.amount = txo.amount self.write_tx_output(self.serialized_tx, txo, script_pubkey)
txo_bin.script_pubkey = self.output_derive_script(txo)
self.write_tx_output(self.serialized_tx, txo_bin)
async def get_prevtx_output_value(self, prev_hash: bytes, prev_index: int) -> int: async def get_prevtx_output_value(self, prev_hash: bytes, prev_index: int) -> int:
amount_out = 0 # output amount amount_out = 0 # output amount
@ -403,7 +397,7 @@ class Bitcoin:
txo_bin = await helpers.request_tx_output( txo_bin = await helpers.request_tx_output(
self.tx_req, i, self.coin, prev_hash self.tx_req, i, self.coin, prev_hash
) )
self.write_tx_output(txh, txo_bin) self.write_tx_output(txh, txo_bin, txo_bin.script_pubkey)
if i == prev_index: if i == prev_index:
amount_out = txo_bin.amount amount_out = txo_bin.amount
self.check_prevtx_output(txo_bin) self.check_prevtx_output(txo_bin)
@ -435,8 +429,13 @@ class Bitcoin:
) -> None: ) -> None:
writers.write_tx_input(w, txi, script) writers.write_tx_input(w, txi, script)
def write_tx_output(self, w: writers.Writer, txo_bin: TxOutputBinType) -> None: def write_tx_output(
writers.write_tx_output(w, txo_bin) self,
w: writers.Writer,
txo: Union[TxOutputType, TxOutputBinType],
script_pubkey: bytes,
) -> None:
writers.write_tx_output(w, txo, script_pubkey)
def write_tx_header( def write_tx_header(
self, w: writers.Writer, tx: Union[SignTx, TransactionType], has_segwit: bool self, w: writers.Writer, tx: Union[SignTx, TransactionType], has_segwit: bool
@ -519,8 +518,8 @@ class Bitcoin:
writers.write_uint32(self.h_prevouts, txi.prev_index) writers.write_uint32(self.h_prevouts, txi.prev_index)
writers.write_uint32(self.h_sequence, txi.sequence) writers.write_uint32(self.h_sequence, txi.sequence)
def hash143_add_output(self, txo_bin: TxOutputBinType) -> None: def hash143_add_output(self, txo: TxOutputType, script_pubkey) -> None:
writers.write_tx_output(self.h_outputs, txo_bin) writers.write_tx_output(self.h_outputs, txo, script_pubkey)
def hash143_preimage_hash(self, txi: TxInputType, pubkeyhash: bytes) -> bytes: def hash143_preimage_hash(self, txi: TxInputType, pubkeyhash: bytes) -> bytes:
h_preimage = HashWriter(sha256()) h_preimage = HashWriter(sha256())

20
core/src/apps/wallet/sign_tx/decred.py
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@ -58,15 +58,14 @@ class Decred(Bitcoin):
# Decred serializes inputs early. # Decred serializes inputs early.
self.write_tx_input(self.serialized_tx, txi, bytes()) self.write_tx_input(self.serialized_tx, txi, bytes())
async def confirm_output(self, txo: TxOutputType, txo_bin: TxOutputBinType) -> None: async def confirm_output(self, txo: TxOutputType, script_pubkey: bytes) -> None:
if txo.decred_script_version != 0: if txo.decred_script_version != 0:
raise SigningError( raise SigningError(
FailureType.ActionCancelled, FailureType.ActionCancelled,
"Cannot send to output with script version != 0", "Cannot send to output with script version != 0",
) )
txo_bin.decred_script_version = txo.decred_script_version await super().confirm_output(txo, script_pubkey)
await super().confirm_output(txo, txo_bin) self.write_tx_output(self.serialized_tx, txo, script_pubkey)
self.write_tx_output(self.serialized_tx, txo_bin)
async def step4_serialize_inputs(self) -> None: async def step4_serialize_inputs(self) -> None:
writers.write_varint(self.serialized_tx, self.tx.inputs_count) writers.write_varint(self.serialized_tx, self.tx.inputs_count)
@ -147,16 +146,21 @@ class Decred(Bitcoin):
def hash143_add_input(self, txi: TxInputType) -> None: def hash143_add_input(self, txi: TxInputType) -> None:
writers.write_tx_input_decred(self.h_prefix, txi) writers.write_tx_input_decred(self.h_prefix, txi)
def hash143_add_output(self, txo_bin: TxOutputBinType) -> None: def hash143_add_output(self, txo: TxOutputType, script_pubkey: bytes) -> None:
writers.write_tx_output_decred(self.h_prefix, txo_bin) writers.write_tx_output_decred(self.h_prefix, txo, script_pubkey)
def write_tx_input( def write_tx_input(
self, w: writers.Writer, txi: TxInputType, script: bytes self, w: writers.Writer, txi: TxInputType, script: bytes
) -> None: ) -> None:
writers.write_tx_input_decred(w, txi) writers.write_tx_input_decred(w, txi)
def write_tx_output(self, w: writers.Writer, txo_bin: TxOutputBinType) -> None: def write_tx_output(
writers.write_tx_output_decred(w, txo_bin) self,
w: writers.Writer,
txo: Union[TxOutputType, TxOutputBinType],
script_pubkey: bytes,
) -> None:
writers.write_tx_output_decred(w, txo, script_pubkey)
def write_tx_header( def write_tx_header(
self, w: writers.Writer, tx: Union[SignTx, TransactionType], has_segwit: bool self, w: writers.Writer, tx: Union[SignTx, TransactionType], has_segwit: bool

14
core/src/apps/wallet/sign_tx/writers.py
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@ -3,6 +3,7 @@ from micropython import const
from trezor.crypto.hashlib import sha256 from trezor.crypto.hashlib import sha256
from trezor.messages.TxInputType import TxInputType from trezor.messages.TxInputType import TxInputType
from trezor.messages.TxOutputBinType import TxOutputBinType from trezor.messages.TxOutputBinType import TxOutputBinType
from trezor.messages.TxOutputType import TxOutputType
from trezor.utils import ensure from trezor.utils import ensure
from apps.common.writers import ( # noqa: F401 from apps.common.writers import ( # noqa: F401
@ -17,6 +18,7 @@ from apps.common.writers import ( # noqa: F401
) )
if False: if False:
from typing import Union
from apps.common.writers import Writer from apps.common.writers import Writer
from trezor.utils import HashWriter from trezor.utils import HashWriter
@ -64,15 +66,19 @@ def write_tx_input_decred_witness(w: Writer, i: TxInputType, script_sig: bytes)
write_bytes_prefixed(w, script_sig) write_bytes_prefixed(w, script_sig)
def write_tx_output(w: Writer, o: TxOutputBinType) -> None: def write_tx_output(
w: Writer, o: Union[TxOutputType, TxOutputBinType], script_pubkey: bytes
) -> None:
write_uint64(w, o.amount) write_uint64(w, o.amount)
write_bytes_prefixed(w, o.script_pubkey) write_bytes_prefixed(w, script_pubkey)
def write_tx_output_decred(w: Writer, o: TxOutputBinType) -> None: def write_tx_output_decred(
w: Writer, o: Union[TxOutputType, TxOutputBinType], script_pubkey: bytes
) -> None:
write_uint64(w, o.amount) write_uint64(w, o.amount)
write_uint16(w, o.decred_script_version) write_uint16(w, o.decred_script_version)
write_bytes_prefixed(w, o.script_pubkey) write_bytes_prefixed(w, script_pubkey)
def write_op_push(w: Writer, n: int) -> None: def write_op_push(w: Writer, n: int) -> None:

8
core/tests/test_apps.wallet.segwit.bip143.native_p2wpkh.py
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@ -69,8 +69,8 @@ class TestSegwitBip143NativeP2WPKH(unittest.TestCase):
for txo in [self.out1, self.out2]: for txo in [self.out1, self.out2]:
txo_bin = TxOutputBinType() txo_bin = TxOutputBinType()
txo_bin.amount = txo.amount txo_bin.amount = txo.amount
txo_bin.script_pubkey = output_derive_script(txo, coin) script_pubkey = output_derive_script(txo, coin)
bip143.hash143_add_output(txo_bin) bip143.hash143_add_output(txo_bin, script_pubkey)
outputs_hash = get_tx_hash(bip143.h_outputs, double=coin.sign_hash_double) outputs_hash = get_tx_hash(bip143.h_outputs, double=coin.sign_hash_double)
self.assertEqual(hexlify(outputs_hash), b'863ef3e1a92afbfdb97f31ad0fc7683ee943e9abcf2501590ff8f6551f47e5e5') self.assertEqual(hexlify(outputs_hash), b'863ef3e1a92afbfdb97f31ad0fc7683ee943e9abcf2501590ff8f6551f47e5e5')
@ -86,8 +86,8 @@ class TestSegwitBip143NativeP2WPKH(unittest.TestCase):
for txo in [self.out1, self.out2]: for txo in [self.out1, self.out2]:
txo_bin = TxOutputBinType() txo_bin = TxOutputBinType()
txo_bin.amount = txo.amount txo_bin.amount = txo.amount
txo_bin.script_pubkey = output_derive_script(txo, coin) script_pubkey = output_derive_script(txo, coin)
bip143.hash143_add_output(txo_bin) bip143.hash143_add_output(txo_bin, script_pubkey)
# test data public key hash # test data public key hash
# only for input 2 - input 1 is not segwit # only for input 2 - input 1 is not segwit

8
core/tests/test_apps.wallet.segwit.bip143.p2wpkh_in_p2sh.py
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@ -58,8 +58,8 @@ class TestSegwitBip143(unittest.TestCase):
for txo in [self.out1, self.out2]: for txo in [self.out1, self.out2]:
txo_bin = TxOutputBinType() txo_bin = TxOutputBinType()
txo_bin.amount = txo.amount txo_bin.amount = txo.amount
txo_bin.script_pubkey = output_derive_script(txo, coin) script_pubkey = output_derive_script(txo, coin)
bip143.hash143_add_output(txo_bin) bip143.hash143_add_output(txo_bin, script_pubkey)
outputs_hash = get_tx_hash(bip143.h_outputs, double=coin.sign_hash_double) outputs_hash = get_tx_hash(bip143.h_outputs, double=coin.sign_hash_double)
self.assertEqual(hexlify(outputs_hash), b'de984f44532e2173ca0d64314fcefe6d30da6f8cf27bafa706da61df8a226c83') self.assertEqual(hexlify(outputs_hash), b'de984f44532e2173ca0d64314fcefe6d30da6f8cf27bafa706da61df8a226c83')
@ -72,8 +72,8 @@ class TestSegwitBip143(unittest.TestCase):
for txo in [self.out1, self.out2]: for txo in [self.out1, self.out2]:
txo_bin = TxOutputBinType() txo_bin = TxOutputBinType()
txo_bin.amount = txo.amount txo_bin.amount = txo.amount
txo_bin.script_pubkey = output_derive_script(txo, coin) script_pubkey = output_derive_script(txo, coin)
bip143.hash143_add_output(txo_bin) bip143.hash143_add_output(txo_bin, script_pubkey)
# test data public key hash # test data public key hash
result = bip143.hash143_preimage_hash(self.inp1, unhexlify('79091972186c449eb1ded22b78e40d009bdf0089')) result = bip143.hash143_preimage_hash(self.inp1, unhexlify('79091972186c449eb1ded22b78e40d009bdf0089'))

2
core/tests/test_apps.wallet.zcash.zip143.py
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@ -169,7 +169,7 @@ class TestZcashZip143(unittest.TestCase):
txo = TxOutputBinType() txo = TxOutputBinType()
txo.amount = o["amount"] txo.amount = o["amount"]
txo.script_pubkey = unhexlify(o["script_pubkey"]) txo.script_pubkey = unhexlify(o["script_pubkey"])
zip143.hash143_add_output(txo) zip143.hash143_add_output(txo, txo.script_pubkey)
self.assertEqual(hexlify(get_tx_hash(zip143.h_prevouts)), v["prevouts_hash"]) self.assertEqual(hexlify(get_tx_hash(zip143.h_prevouts)), v["prevouts_hash"])
self.assertEqual(hexlify(get_tx_hash(zip143.h_sequence)), v["sequence_hash"]) self.assertEqual(hexlify(get_tx_hash(zip143.h_sequence)), v["sequence_hash"])

2
core/tests/test_apps.wallet.zcash.zip243.py
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@ -203,7 +203,7 @@ class TestZcashZip243(unittest.TestCase):
txo = TxOutputBinType() txo = TxOutputBinType()
txo.amount = o["amount"] txo.amount = o["amount"]
txo.script_pubkey = unhexlify(o["script_pubkey"]) txo.script_pubkey = unhexlify(o["script_pubkey"])
zip243.hash143_add_output(txo) zip243.hash143_add_output(txo, txo.script_pubkey)
self.assertEqual(hexlify(get_tx_hash(zip243.h_prevouts)), v["prevouts_hash"]) self.assertEqual(hexlify(get_tx_hash(zip243.h_prevouts)), v["prevouts_hash"])
self.assertEqual(hexlify(get_tx_hash(zip243.h_sequence)), v["sequence_hash"]) self.assertEqual(hexlify(get_tx_hash(zip243.h_sequence)), v["sequence_hash"])

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