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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.
from __future__ import absolute_import, division, print_function
import binascii
import os
from cryptography.hazmat.primitives.ciphers import algorithms
from .utils import generate_stream_encryption_test
from ...utils import load_nist_vectors
class TestARC4(object):
test_rfc = generate_stream_encryption_test(
load_nist_vectors,
os.path.join("ciphers", "ARC4"),
[
"rfc-6229-40.txt",
"rfc-6229-56.txt",
"rfc-6229-64.txt",
"rfc-6229-80.txt",
"rfc-6229-128.txt",
"rfc-6229-192.txt",
"rfc-6229-256.txt",
],
lambda key: algorithms.ARC4(binascii.unhexlify((key))),
only_if=lambda backend: backend.cipher_supported(
algorithms.ARC4("\x00" * 16), None
),
skip_message="Does not support ARC4",
)
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