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# Copyright 2016-2018 Yubico AB
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from yubihsm.defs import ALGORITHM, CAPABILITY, ERROR
from yubihsm.objects import (
AuthenticationKey,
HmacKey,
Opaque,
AsymmetricKey,
OtpAeadKey,
WrapKey,
SymmetricKey,
)
from yubihsm.exceptions import YubiHsmDeviceError
from cryptography.hazmat.primitives.asymmetric import ec
from cryptography.hazmat.backends import default_backend
import os
import pytest
def _set_up_key(hsm, session, capability):
password = session.get_pseudo_random(32).hex()
key = AuthenticationKey.put_derived(
session, 0, "Test Delete authkey", 1, capability, CAPABILITY.NONE, password
)
session = hsm.create_session_derived(key.id, password)
return key, session
def _test_delete(hsm, session, obj, capability):
pos_key, pos_sess = _set_up_key(hsm, session, capability)
neg_key, neg_sess = _set_up_key(hsm, session, CAPABILITY.NONE)
with pytest.raises(YubiHsmDeviceError) as context:
obj.with_session(neg_sess).delete()
assert context.value.code == ERROR.INSUFFICIENT_PERMISSIONS
obj.with_session(pos_sess).delete()
pos_sess.close()
neg_sess.close()
neg_key.delete()
pos_key.delete()
def test_opaque(hsm, session):
obj = Opaque.put(
session,
0,
"Test opaque data",
1,
CAPABILITY.NONE,
ALGORITHM.OPAQUE_DATA,
b"data",
)
_test_delete(hsm, session, obj, CAPABILITY.DELETE_OPAQUE)
def test_authentication_key(hsm, session):
obj = AuthenticationKey.put_derived(
session,
0,
"Test delete authkey",
1,
CAPABILITY.GET_LOG_ENTRIES,
CAPABILITY.NONE,
session.get_pseudo_random(32).hex(),
)
_test_delete(hsm, session, obj, CAPABILITY.DELETE_AUTHENTICATION_KEY)
def test_asymmetric_key(hsm, session):
obj = AsymmetricKey.put(
session,
0,
"Test delete asym",
0xFFFF,
CAPABILITY.SIGN_ECDSA,
ec.generate_private_key(ec.SECP384R1(), backend=default_backend()),
)
_test_delete(hsm, session, obj, CAPABILITY.DELETE_ASYMMETRIC_KEY)
def test_wrap_key(hsm, session):
obj = WrapKey.put(
session,
0,
"Test delete",
1,
CAPABILITY.IMPORT_WRAPPED,
ALGORITHM.AES192_CCM_WRAP,
CAPABILITY.NONE,
os.urandom(24),
)
_test_delete(hsm, session, obj, CAPABILITY.DELETE_WRAP_KEY)
def test_hmac_key(hsm, session):
obj = HmacKey.put(
session, 0, "Test delete HMAC", 1, CAPABILITY.SIGN_HMAC, bytes(16)
)
_test_delete(hsm, session, obj, CAPABILITY.DELETE_HMAC_KEY)
def test_otp_aead_key(hsm, session):
obj = OtpAeadKey.put(
session,
0,
"Test delete OTP AEAD",
1,
CAPABILITY.DECRYPT_OTP,
ALGORITHM.AES256_YUBICO_OTP,
0x00000001,
os.urandom(32),
)
_test_delete(hsm, session, obj, CAPABILITY.DELETE_OTP_AEAD_KEY)
def test_symmetric_key(hsm, session, info):
if info.version < (2, 3, 0):
pytest.skip("Symmetric keys require YubiHSM 2.3.0")
obj = SymmetricKey.put(
session,
0,
"Test delete symmetric",
0xFFFF,
CAPABILITY.DECRYPT_ECB,
ALGORITHM.AES128,
os.urandom(16),
)
_test_delete(hsm, session, obj, CAPABILITY.DELETE_SYMMETRIC_KEY)
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