mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-27 01:48:17 +00:00
86 lines
2.2 KiB
Python
86 lines
2.2 KiB
Python
from . import messages as proto
|
|
from .tools import CallException, expect, normalize_nfc, session
|
|
|
|
|
|
def int_to_big_endian(value):
|
|
return value.to_bytes((value.bit_length() + 7) // 8, "big")
|
|
|
|
|
|
# ====== Client functions ====== #
|
|
|
|
|
|
@expect(proto.EthereumAddress, field="address")
|
|
def get_address(client, n, show_display=False, multisig=None):
|
|
return client.call(proto.EthereumGetAddress(address_n=n, show_display=show_display))
|
|
|
|
|
|
@session
|
|
def sign_tx(
|
|
client,
|
|
n,
|
|
nonce,
|
|
gas_price,
|
|
gas_limit,
|
|
to,
|
|
value,
|
|
data=None,
|
|
chain_id=None,
|
|
tx_type=None,
|
|
):
|
|
msg = proto.EthereumSignTx(
|
|
address_n=n,
|
|
nonce=int_to_big_endian(nonce),
|
|
gas_price=int_to_big_endian(gas_price),
|
|
gas_limit=int_to_big_endian(gas_limit),
|
|
value=int_to_big_endian(value),
|
|
)
|
|
|
|
if to:
|
|
msg.to = to
|
|
|
|
if data:
|
|
msg.data_length = len(data)
|
|
data, chunk = data[1024:], data[:1024]
|
|
msg.data_initial_chunk = chunk
|
|
|
|
if chain_id:
|
|
msg.chain_id = chain_id
|
|
|
|
if tx_type is not None:
|
|
msg.tx_type = tx_type
|
|
|
|
response = client.call(msg)
|
|
|
|
while response.data_length is not None:
|
|
data_length = response.data_length
|
|
data, chunk = data[data_length:], data[:data_length]
|
|
response = client.call(proto.EthereumTxAck(data_chunk=chunk))
|
|
|
|
# https://github.com/trezor/trezor-core/pull/311
|
|
# only signature bit returned. recalculate signature_v
|
|
if response.signature_v <= 1:
|
|
response.signature_v += 2 * chain_id + 35
|
|
|
|
return response.signature_v, response.signature_r, response.signature_s
|
|
|
|
|
|
@expect(proto.EthereumMessageSignature)
|
|
def sign_message(client, n, message):
|
|
message = normalize_nfc(message)
|
|
return client.call(proto.EthereumSignMessage(address_n=n, message=message))
|
|
|
|
|
|
def verify_message(client, address, signature, message):
|
|
message = normalize_nfc(message)
|
|
try:
|
|
resp = client.call(
|
|
proto.EthereumVerifyMessage(
|
|
address=address, signature=signature, message=message
|
|
)
|
|
)
|
|
except CallException as e:
|
|
resp = e
|
|
if isinstance(resp, proto.Success):
|
|
return True
|
|
return False
|