mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-22 15:38:11 +00:00
wallet/signing: hash writers and serialization moved to seperate file
This commit is contained in:
Tomas Susanka
parent
039f6bad43
commit
81ec2f3c65
@ -6,8 +6,6 @@ from trezor.utils import ensure
|
||||
from trezor.messages.CoinType import CoinType
|
||||
from trezor.messages.SignTx import SignTx
|
||||
from trezor.messages.TxOutputType import TxOutputType
|
||||
from trezor.messages.TxOutputBinType import TxOutputBinType
|
||||
from trezor.messages.TxInputType import TxInputType
|
||||
from trezor.messages.TxRequest import TxRequest
|
||||
from trezor.messages.TransactionType import TransactionType
|
||||
from trezor.messages.RequestType import TXINPUT, TXOUTPUT, TXMETA, TXFINISHED
|
||||
@ -17,6 +15,7 @@ from trezor.messages import OutputScriptType, InputScriptType, FailureType
|
||||
|
||||
from apps.common import address_type
|
||||
from apps.common import coins
|
||||
from apps.wallet.sign_tx.writers import *
|
||||
|
||||
|
||||
# Machine instructions
|
||||
@ -137,6 +136,7 @@ def sanitize_tx_binoutput(tx: TransactionType) -> TxOutputBinType:
|
||||
# Transaction signing
|
||||
# ===
|
||||
|
||||
# Phase 1
|
||||
async def check_tx_fee(tx: SignTx, root, segwit=False):
|
||||
|
||||
coin = coins.by_name(tx.coin_name)
|
||||
@ -337,15 +337,6 @@ async def get_prevtx_output_value(tx_req: TxRequest, prev_hash: bytes, prev_inde
|
||||
return total_out
|
||||
|
||||
|
||||
def get_tx_hash(w, double: bool, reverse: bool=False) -> bytes:
|
||||
d = w.getvalue()
|
||||
if double:
|
||||
d = sha256(d).digest()
|
||||
if reverse:
|
||||
d = bytes(reversed(d))
|
||||
return d
|
||||
|
||||
|
||||
def estimate_tx_size(inputs, outputs):
|
||||
return 10 + inputs * 149 + outputs * 35
|
||||
|
||||
@ -479,120 +470,3 @@ def script_spendaddress_new(pubkey: bytes, signature: bytes) -> bytearray:
|
||||
write_op_push(w, len(pubkey))
|
||||
write_bytes(w, pubkey)
|
||||
return w
|
||||
|
||||
|
||||
# TX Serialization
|
||||
# ===
|
||||
|
||||
_DEFAULT_SEQUENCE = 4294967295
|
||||
|
||||
|
||||
def write_tx_input(w, i: TxInputType):
|
||||
i_sequence = i.sequence if i.sequence is not None else _DEFAULT_SEQUENCE
|
||||
write_bytes_rev(w, i.prev_hash)
|
||||
write_uint32(w, i.prev_index)
|
||||
write_varint(w, len(i.script_sig))
|
||||
write_bytes(w, i.script_sig)
|
||||
write_uint32(w, i_sequence)
|
||||
|
||||
|
||||
def write_tx_input_check(w, i: TxInputType):
|
||||
i_sequence = i.sequence if i.sequence is not None else _DEFAULT_SEQUENCE
|
||||
write_bytes(w, i.prev_hash)
|
||||
write_uint32(w, i.prev_index)
|
||||
write_uint32(w, len(i.address_n))
|
||||
for n in i.address_n:
|
||||
write_uint32(w, n)
|
||||
write_uint32(w, i_sequence)
|
||||
|
||||
|
||||
def write_tx_output(w, o: TxOutputBinType):
|
||||
write_uint64(w, o.amount)
|
||||
write_varint(w, len(o.script_pubkey))
|
||||
write_bytes(w, o.script_pubkey)
|
||||
|
||||
|
||||
def write_op_push(w, n: int):
|
||||
if n < 0x4C:
|
||||
w.append(n & 0xFF)
|
||||
elif n < 0xFF:
|
||||
w.append(0x4C)
|
||||
w.append(n & 0xFF)
|
||||
elif n < 0xFFFF:
|
||||
w.append(0x4D)
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
else:
|
||||
w.append(0x4E)
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
w.append((n >> 16) & 0xFF)
|
||||
w.append((n >> 24) & 0xFF)
|
||||
|
||||
|
||||
# Buffer IO & Serialization
|
||||
# ===
|
||||
|
||||
|
||||
def write_varint(w, n: int):
|
||||
if n < 253:
|
||||
w.append(n & 0xFF)
|
||||
elif n < 65536:
|
||||
w.append(253)
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
else:
|
||||
w.append(254)
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
w.append((n >> 16) & 0xFF)
|
||||
w.append((n >> 24) & 0xFF)
|
||||
|
||||
|
||||
def write_uint32(w, n: int):
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
w.append((n >> 16) & 0xFF)
|
||||
w.append((n >> 24) & 0xFF)
|
||||
|
||||
|
||||
def write_uint64(w, n: int):
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
w.append((n >> 16) & 0xFF)
|
||||
w.append((n >> 24) & 0xFF)
|
||||
w.append((n >> 32) & 0xFF)
|
||||
w.append((n >> 40) & 0xFF)
|
||||
w.append((n >> 48) & 0xFF)
|
||||
w.append((n >> 56) & 0xFF)
|
||||
|
||||
|
||||
def write_bytes(w, buf: bytearray):
|
||||
w.extend(buf)
|
||||
|
||||
|
||||
def write_bytes_rev(w, buf: bytearray):
|
||||
w.extend(bytearray(reversed(buf)))
|
||||
|
||||
|
||||
def bytearray_with_cap(cap: int) -> bytearray:
|
||||
b = bytearray(cap)
|
||||
b[:] = bytes()
|
||||
return b
|
||||
|
||||
|
||||
class HashWriter:
|
||||
|
||||
def __init__(self, hashfunc):
|
||||
self.ctx = hashfunc()
|
||||
self.buf = bytearray(1) # used in append()
|
||||
|
||||
def extend(self, buf: bytearray):
|
||||
self.ctx.update(buf)
|
||||
|
||||
def append(self, b: int):
|
||||
self.buf[0] = b
|
||||
self.ctx.update(self.buf)
|
||||
|
||||
def getvalue(self) -> bytes:
|
||||
return self.ctx.digest()
|
||||
|
||||
132
src/apps/wallet/sign_tx/writers.py
Normal file
132
src/apps/wallet/sign_tx/writers.py
Normal file
@ -0,0 +1,132 @@
|
||||
from trezor.messages.TxOutputBinType import TxOutputBinType
|
||||
from trezor.messages.TxInputType import TxInputType
|
||||
from trezor.crypto.hashlib import sha256
|
||||
|
||||
# TX Serialization
|
||||
# ===
|
||||
|
||||
_DEFAULT_SEQUENCE = 4294967295
|
||||
|
||||
|
||||
def write_tx_input(w, i: TxInputType):
|
||||
i_sequence = i.sequence if i.sequence is not None else _DEFAULT_SEQUENCE
|
||||
write_bytes_rev(w, i.prev_hash)
|
||||
write_uint32(w, i.prev_index)
|
||||
write_varint(w, len(i.script_sig))
|
||||
write_bytes(w, i.script_sig)
|
||||
write_uint32(w, i_sequence)
|
||||
|
||||
|
||||
def write_tx_input_check(w, i: TxInputType):
|
||||
i_sequence = i.sequence if i.sequence is not None else _DEFAULT_SEQUENCE
|
||||
write_bytes(w, i.prev_hash)
|
||||
write_uint32(w, i.prev_index)
|
||||
write_uint32(w, len(i.address_n))
|
||||
for n in i.address_n:
|
||||
write_uint32(w, n)
|
||||
write_uint32(w, i_sequence)
|
||||
|
||||
|
||||
def write_tx_output(w, o: TxOutputBinType):
|
||||
write_uint64(w, o.amount)
|
||||
write_varint(w, len(o.script_pubkey))
|
||||
write_bytes(w, o.script_pubkey)
|
||||
|
||||
|
||||
def write_op_push(w, n: int):
|
||||
if n < 0x4C:
|
||||
w.append(n & 0xFF)
|
||||
elif n < 0xFF:
|
||||
w.append(0x4C)
|
||||
w.append(n & 0xFF)
|
||||
elif n < 0xFFFF:
|
||||
w.append(0x4D)
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
else:
|
||||
w.append(0x4E)
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
w.append((n >> 16) & 0xFF)
|
||||
w.append((n >> 24) & 0xFF)
|
||||
|
||||
|
||||
# Buffer IO & Serialization
|
||||
# ===
|
||||
|
||||
|
||||
def write_varint(w, n: int):
|
||||
if n < 253:
|
||||
w.append(n & 0xFF)
|
||||
elif n < 65536:
|
||||
w.append(253)
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
else:
|
||||
w.append(254)
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
w.append((n >> 16) & 0xFF)
|
||||
w.append((n >> 24) & 0xFF)
|
||||
|
||||
|
||||
def write_uint32(w, n: int):
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
w.append((n >> 16) & 0xFF)
|
||||
w.append((n >> 24) & 0xFF)
|
||||
|
||||
|
||||
def write_uint64(w, n: int):
|
||||
w.append(n & 0xFF)
|
||||
w.append((n >> 8) & 0xFF)
|
||||
w.append((n >> 16) & 0xFF)
|
||||
w.append((n >> 24) & 0xFF)
|
||||
w.append((n >> 32) & 0xFF)
|
||||
w.append((n >> 40) & 0xFF)
|
||||
w.append((n >> 48) & 0xFF)
|
||||
w.append((n >> 56) & 0xFF)
|
||||
|
||||
|
||||
def write_bytes(w, buf: bytearray):
|
||||
w.extend(buf)
|
||||
|
||||
|
||||
def write_bytes_rev(w, buf: bytearray):
|
||||
w.extend(bytearray(reversed(buf)))
|
||||
|
||||
|
||||
def bytearray_with_cap(cap: int) -> bytearray:
|
||||
b = bytearray(cap)
|
||||
b[:] = bytes()
|
||||
return b
|
||||
|
||||
|
||||
# Hashes
|
||||
# ===
|
||||
|
||||
|
||||
def get_tx_hash(w, double: bool, reverse: bool=False) -> bytes:
|
||||
d = w.getvalue()
|
||||
if double:
|
||||
d = sha256(d).digest()
|
||||
if reverse:
|
||||
d = bytes(reversed(d))
|
||||
return d
|
||||
|
||||
|
||||
class HashWriter:
|
||||
|
||||
def __init__(self, hashfunc):
|
||||
self.ctx = hashfunc()
|
||||
self.buf = bytearray(1) # used in append()
|
||||
|
||||
def extend(self, buf: bytearray):
|
||||
self.ctx.update(buf)
|
||||
|
||||
def append(self, b: int):
|
||||
self.buf[0] = b
|
||||
self.ctx.update(self.buf)
|
||||
|
||||
def getvalue(self) -> bytes:
|
||||
return self.ctx.digest()
|
||||
Loading…
Reference in New Issue
Block a user