diff options
Diffstat (limited to 'tests/hazmat/primitives/utils.py')
| -rw-r--r-- | tests/hazmat/primitives/utils.py | 65 |
1 files changed, 62 insertions, 3 deletions
diff --git a/tests/hazmat/primitives/utils.py b/tests/hazmat/primitives/utils.py index e6e97d1d..9327b0eb 100644 --- a/tests/hazmat/primitives/utils.py +++ b/tests/hazmat/primitives/utils.py @@ -8,6 +8,8 @@ from cryptography.hazmat.primitives import hashes from cryptography.hazmat.primitives import hmac from cryptography.hazmat.primitives.ciphers import Cipher +from ...utils import load_vectors_from_file + def generate_encrypt_test(param_loader, path, file_names, cipher_factory, mode_factory, only_if=lambda backend: True, @@ -15,7 +17,10 @@ def generate_encrypt_test(param_loader, path, file_names, cipher_factory, def test_encryption(self): for backend in _ALL_BACKENDS: for file_name in file_names: - for params in param_loader(os.path.join(path, file_name)): + for params in load_vectors_from_file( + os.path.join(path, file_name), + param_loader + ): yield ( encrypt_test, backend, @@ -49,12 +54,57 @@ def encrypt_test(backend, cipher_factory, mode_factory, params, only_if, assert actual_plaintext == binascii.unhexlify(plaintext) +def generate_stream_encryption_test(param_loader, path, file_names, + cipher_factory, only_if=None, + skip_message=None): + def test_stream_encryption(self): + for backend in _ALL_BACKENDS: + for file_name in file_names: + for params in load_vectors_from_file( + os.path.join(path, file_name), + param_loader + ): + yield ( + stream_encryption_test, + backend, + cipher_factory, + params, + only_if, + skip_message + ) + return test_stream_encryption + + +def stream_encryption_test(backend, cipher_factory, params, only_if, + skip_message): + if not only_if(backend): + pytest.skip(skip_message) + plaintext = params.pop("plaintext") + ciphertext = params.pop("ciphertext") + offset = params.pop("offset") + cipher = Cipher(cipher_factory(**params), None, backend) + encryptor = cipher.encryptor() + # throw away offset bytes + encryptor.update(b"\x00" * int(offset)) + actual_ciphertext = encryptor.update(binascii.unhexlify(plaintext)) + actual_ciphertext += encryptor.finalize() + assert actual_ciphertext == binascii.unhexlify(ciphertext) + decryptor = cipher.decryptor() + decryptor.update(b"\x00" * int(offset)) + actual_plaintext = decryptor.update(binascii.unhexlify(ciphertext)) + actual_plaintext += decryptor.finalize() + assert actual_plaintext == binascii.unhexlify(plaintext) + + def generate_hash_test(param_loader, path, file_names, hash_cls, only_if=None, skip_message=None): def test_hash(self): for backend in _ALL_BACKENDS: for file_name in file_names: - for params in param_loader(os.path.join(path, file_name)): + for params in load_vectors_from_file( + os.path.join(path, file_name), + param_loader + ): yield ( hash_test, backend, @@ -105,6 +155,12 @@ def base_hash_test(backend, algorithm, digest_size, block_size, only_if, assert m != m_copy assert m._ctx != m_copy._ctx + m.update(b"abc") + copy = m.copy() + copy.update(b"123") + m.update(b"123") + assert copy.finalize() == m.finalize() + def generate_long_string_hash_test(hash_factory, md, only_if=None, skip_message=None): @@ -134,7 +190,10 @@ def generate_hmac_test(param_loader, path, file_names, algorithm, def test_hmac(self): for backend in _ALL_BACKENDS: for file_name in file_names: - for params in param_loader(os.path.join(path, file_name)): + for params in load_vectors_from_file( + os.path.join(path, file_name), + param_loader + ): yield ( hmac_test, backend, |