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trezor-firmware/trezorlib/misc.py

83 lines
2.3 KiB
Python

# This file is part of the Trezor project.
#
# Copyright (C) 2012-2018 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 .tools import expect
@expect(proto.Entropy, field="entropy")
def get_entropy(client, size):
return client.call(proto.GetEntropy(size=size))
@expect(proto.SignedIdentity)
def sign_identity(
client, identity, challenge_hidden, challenge_visual, ecdsa_curve_name=None
):
return client.call(
proto.SignIdentity(
identity=identity,
challenge_hidden=challenge_hidden,
challenge_visual=challenge_visual,
ecdsa_curve_name=ecdsa_curve_name,
)
)
@expect(proto.ECDHSessionKey)
def get_ecdh_session_key(client, identity, peer_public_key, ecdsa_curve_name=None):
return client.call(
proto.GetECDHSessionKey(
identity=identity,
peer_public_key=peer_public_key,
ecdsa_curve_name=ecdsa_curve_name,
)
)
@expect(proto.CipheredKeyValue, field="value")
def encrypt_keyvalue(
client, n, key, value, ask_on_encrypt=True, ask_on_decrypt=True, iv=b""
):
return client.call(
proto.CipherKeyValue(
address_n=n,
key=key,
value=value,
encrypt=True,
ask_on_encrypt=ask_on_encrypt,
ask_on_decrypt=ask_on_decrypt,
iv=iv,
)
)
@expect(proto.CipheredKeyValue, field="value")
def decrypt_keyvalue(
client, n, key, value, ask_on_encrypt=True, ask_on_decrypt=True, iv=b""
):
return client.call(
proto.CipherKeyValue(
address_n=n,
key=key,
value=value,
encrypt=False,
ask_on_encrypt=ask_on_encrypt,
ask_on_decrypt=ask_on_decrypt,
iv=iv,
)
)