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trezor-firmware/python/src/trezorlib/cli/cosi.py

83 lines
2.5 KiB
Python

# This file is part of the Trezor project.
#
# Copyright (C) 2012-2022 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 typing import TYPE_CHECKING, Optional
import click
from .. import cosi, tools
from . import with_client
if TYPE_CHECKING:
from .. import messages
from ..client import TrezorClient
PATH_HELP = "BIP-32 path, e.g. m/10018h/0h"
@click.group(name="cosi")
def cli() -> None:
"""CoSi (Cothority / collective signing) commands."""
def cosi_warn(client: "TrezorClient") -> None:
if client.features.model == "1" and client.version < (1, 11, 2):
click.echo("WARNING: CoSi signing on your Trezor is insecure.")
click.echo("Please update your Trezor to firmware version 1.11.2 or newer.")
click.echo("If you used CoSi in the past, consider rotating your keys.")
raise click.Abort()
@cli.command()
@click.option("-n", "--address", required=True, help=PATH_HELP)
@click.argument("data_deprecated", required=False)
@with_client
def commit(
client: "TrezorClient", address: str, data_deprecated: Optional[str]
) -> "messages.CosiCommitment":
"""Ask device to commit to CoSi signing."""
cosi_warn(client)
if data_deprecated is not None:
click.echo("Warning: data argument is deprecated", err=True)
address_n = tools.parse_path(address)
return cosi.commit(client, address_n)
@cli.command()
@click.option("-n", "--address", required=True, help=PATH_HELP)
@click.argument("data")
@click.argument("global_commitment")
@click.argument("global_pubkey")
@with_client
def sign(
client: "TrezorClient",
address: str,
data: str,
global_commitment: str,
global_pubkey: str,
) -> "messages.CosiSignature":
"""Ask device to sign using CoSi."""
cosi_warn(client)
address_n = tools.parse_path(address)
return cosi.sign(
client,
address_n,
bytes.fromhex(data),
bytes.fromhex(global_commitment),
bytes.fromhex(global_pubkey),
)