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# 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.
"""
Test using the CRYPTREC (Camellia) Test Vectors
"""
from __future__ import absolute_import, division, print_function
import binascii
import itertools
import os
import pytest
from cryptography.bindings.openssl.api import api
from cryptography.primitives.block import BlockCipher, ciphers, modes
from ..utils import load_cryptrec_vectors_from_file
CAMELLIA_ECB_SUPPORTED = api.supports('camellia-128-ecb')
def parameterize_encrypt_test(cipher, vector_type, params, fnames):
return pytest.mark.parametrize(params,
list(itertools.chain.from_iterable(
load_cryptrec_vectors_from_file(
os.path.join(cipher, vector_type, fname),
)
for fname in fnames
))
)
@pytest.mark.skipif("not CAMELLIA_ECB_SUPPORTED")
class TestCamelliaECB(object):
@parameterize_encrypt_test(
"Camellia", "NTT",
("key", "plaintext", "ciphertext"),
[
"camellia-128-ecb.txt",
"camellia-192-ecb.txt",
"camellia-256-ecb.txt",
]
)
def test_NTT(self, key, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.Camellia(binascii.unhexlify(key)),
modes.ECB(),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext).upper() == ciphertext
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