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trezor-firmware/python/trezorlib/lisk.py
2019-05-29 18:48:15 +02:00

59 lines
2.0 KiB
Python

# This file is part of the Trezor project.
#
# Copyright (C) 2012-2019 SatoshiLabs and contributors
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the License along with this library.
# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
from . import messages as proto
from .protobuf import dict_to_proto
from .tools import CallException, dict_from_camelcase, expect, normalize_nfc
@expect(proto.LiskAddress, field="address")
def get_address(client, n, show_display=False):
return client.call(proto.LiskGetAddress(address_n=n, show_display=show_display))
@expect(proto.LiskPublicKey)
def get_public_key(client, n, show_display=False):
return client.call(proto.LiskGetPublicKey(address_n=n, show_display=show_display))
@expect(proto.LiskMessageSignature)
def sign_message(client, n, message):
message = normalize_nfc(message)
return client.call(proto.LiskSignMessage(address_n=n, message=message))
def verify_message(client, pubkey, signature, message):
message = normalize_nfc(message)
try:
resp = client.call(
proto.LiskVerifyMessage(
signature=signature, public_key=pubkey, message=message
)
)
except CallException as e:
resp = e
return isinstance(resp, proto.Success)
RENAMES = {"lifetime": "life_time", "keysgroup": "keys_group"}
@expect(proto.LiskSignedTx)
def sign_tx(client, n, transaction):
transaction = dict_from_camelcase(transaction, renames=RENAMES)
msg = dict_to_proto(proto.LiskTransactionCommon, transaction)
return client.call(proto.LiskSignTx(address_n=n, transaction=msg))