Support for traditional OpenSSL and PKCS8 RSA private key serialization

1 files changed, 27 insertions, 2 deletions

diff --git a/tests/hazmat/backends/test_openssl.py b/tests/hazmat/backends/test_openssl.py
index 0e4d75ed..35b7c5c3 100644
--- a/tests/hazmat/backends/test_openssl.py
+++ b/tests/hazmat/backends/test_openssl.py
@@ -15,11 +15,12 @@ import pytest
 
 from cryptography import utils
 from cryptography.exceptions import InternalError, _Reasons
+from cryptography.hazmat.backends.interfaces import RSABackend
 from cryptography.hazmat.backends.openssl.backend import (
     Backend, backend
 )
 from cryptography.hazmat.backends.openssl.ec import _sn_to_elliptic_curve
-from cryptography.hazmat.primitives import hashes
+from cryptography.hazmat.primitives import hashes, serialization
 from cryptography.hazmat.primitives.asymmetric import dsa, padding
 from cryptography.hazmat.primitives.ciphers import (
     BlockCipherAlgorithm, Cipher, CipherAlgorithm
@@ -27,7 +28,7 @@ from cryptography.hazmat.primitives.ciphers import (
 from cryptography.hazmat.primitives.ciphers.algorithms import AES
 from cryptography.hazmat.primitives.ciphers.modes import CBC, CTR, Mode
 
-from ..primitives.fixtures_rsa import RSA_KEY_512
+from ..primitives.fixtures_rsa import RSA_KEY_2048, RSA_KEY_512
 from ...utils import load_vectors_from_file, raises_unsupported_algorithm
 
 
@@ -493,3 +494,27 @@ class TestOpenSSLEllipticCurve(object):
     def test_sn_to_elliptic_curve_not_supported(self):
         with raises_unsupported_algorithm(_Reasons.UNSUPPORTED_ELLIPTIC_CURVE):
             _sn_to_elliptic_curve(backend, b"fake")
+
+
+@pytest.mark.requires_backend_interface(interface=RSABackend)
+class TestRSAPEMSerialization(object):
+    def test_password_length_limit(self):
+        password = b"x" * 1024
+        key = RSA_KEY_2048.private_key(backend)
+        with pytest.raises(ValueError):
+            key.dump(
+                serialization.PKCS8(
+                    serialization.Encoding.PEM
+                ),
+                serialization.BestAvailable(password)
+            )
+
+    def test_unsupported_key_encoding(self):
+        key = RSA_KEY_2048.private_key(backend)
+        with pytest.raises(ValueError):
+            key.dump(
+                serialization.PKCS8(
+                    serialization.Encoding.DER
+                ),
+                serialization.NoEncryption()
+            )