ARC4 support

1 files changed, 43 insertions, 0 deletions

diff --git a/tests/hazmat/primitives/test_arc4.py b/tests/hazmat/primitives/test_arc4.py
new file mode 100644
index 00000000..cf0c5eb4
--- /dev/null
+++ b/tests/hazmat/primitives/test_arc4.py
@@ -0,0 +1,43 @@
+# 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_from_file
+
+
+class TestARC4(object):
+    test_thing = generate_stream_encryption_test(
+        lambda path: load_nist_vectors_from_file(path, "ENCRYPT"),
+        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.ciphers.supported(
+            algorithms.ARC4("\x00" * 16), None
+        ),
+        skip_message="Does not support ARC4",
+    )