Merge pull request #72 from reaperhulk/camellia-support

Camellia support

1 files changed, 100 insertions, 0 deletions

diff --git a/tests/primitives/test_openssl_vectors.py b/tests/primitives/test_openssl_vectors.py
new file mode 100644
index 00000000..d30efa5c
--- /dev/null
+++ b/tests/primitives/test_openssl_vectors.py
@@ -0,0 +1,100 @@
+# 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 OpenSSL Test Vectors
+"""
+
+from __future__ import absolute_import, division, print_function
+
+import binascii
+import itertools
+import os
+
+import pytest
+
+from cryptography.primitives.block import BlockCipher, ciphers, modes
+
+from ..utils import load_openssl_vectors_from_file
+
+
+def parameterize_encrypt_test(cipher, params, fnames):
+    return pytest.mark.parametrize(params,
+        list(itertools.chain.from_iterable(
+            load_openssl_vectors_from_file(os.path.join(cipher, fname))
+            for fname in fnames
+        ))
+    )
+
+
+class TestCamelliaCBC(object):
+
+    @parameterize_encrypt_test(
+        "Camellia",
+        ("key", "iv", "plaintext", "ciphertext"),
+        [
+            "camellia-cbc.txt",
+        ]
+    )
+    def test_OpenSSL(self, key, iv, plaintext, ciphertext, api):
+        if not api.supports_cipher("camellia-128-cbc"):
+            pytest.skip("Does not support Camellia CBC")  # pragma: no cover
+        cipher = BlockCipher(
+            ciphers.Camellia(binascii.unhexlify(key)),
+            modes.CBC(binascii.unhexlify(iv)),
+        )
+        actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
+        actual_ciphertext += cipher.finalize()
+        assert binascii.hexlify(actual_ciphertext).upper() == ciphertext
+
+
+class TestCamelliaOFB(object):
+
+    @parameterize_encrypt_test(
+        "Camellia",
+        ("key", "iv", "plaintext", "ciphertext"),
+        [
+            "camellia-ofb.txt",
+        ]
+    )
+    def test_OpenSSL(self, key, iv, plaintext, ciphertext, api):
+        if not api.supports_cipher("camellia-128-ofb"):
+            pytest.skip("Does not support Camellia OFB")  # pragma: no cover
+        cipher = BlockCipher(
+            ciphers.Camellia(binascii.unhexlify(key)),
+            modes.OFB(binascii.unhexlify(iv)),
+        )
+        actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
+        actual_ciphertext += cipher.finalize()
+        assert binascii.hexlify(actual_ciphertext).upper() == ciphertext
+
+
+class TestCamelliaCFB(object):
+
+    @parameterize_encrypt_test(
+        "Camellia",
+        ("key", "iv", "plaintext", "ciphertext"),
+        [
+            "camellia-cfb.txt",
+        ]
+    )
+    def test_OpenSSL(self, key, iv, plaintext, ciphertext, api):
+        if not api.supports_cipher("camellia-128-cfb"):
+            pytest.skip("Does not support Camellia CFB")  # pragma: no cover
+        cipher = BlockCipher(
+            ciphers.Camellia(binascii.unhexlify(key)),
+            modes.CFB(binascii.unhexlify(iv)),
+        )
+        actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
+        actual_ciphertext += cipher.finalize()
+        assert binascii.hexlify(actual_ciphertext).upper() == ciphertext