1 files changed, 89 insertions, 0 deletions
diff --git a/tests/hazmat/backends/test_multibackend.py b/tests/hazmat/backends/test_multibackend.py
index d8c09bd7..3fa364e2 100644
--- a/tests/hazmat/backends/test_multibackend.py
+++ b/tests/hazmat/backends/test_multibackend.py
@@ -98,6 +98,21 @@ class DummyRSABackend(object):
                                     algorithm):
         pass
 
+    def mgf1_hash_supported(self, algorithm):
+        pass
+
+    def rsa_padding_supported(self, padding):
+        pass
+
+    def generate_rsa_parameters_supported(self, public_exponent, key_size):
+        pass
+
+    def decrypt_rsa(self, private_key, ciphertext, padding):
+        pass
+
+    def encrypt_rsa(self, public_key, plaintext, padding):
+        pass
+
 
 @utils.register_interface(DSABackend)
 class DummyDSABackend(object):
@@ -107,6 +122,18 @@ class DummyDSABackend(object):
     def generate_dsa_private_key(self, parameters):
         pass
 
+    def create_dsa_signature_ctx(self, private_key, algorithm):
+        pass
+
+    def create_dsa_verification_ctx(self, public_key, signature, algorithm):
+        pass
+
+    def dsa_hash_supported(self, algorithm):
+        pass
+
+    def dsa_parameters_supported(self, p, q, g):
+        pass
+
 
 @utils.register_interface(CMACBackend)
 class DummyCMACBackend(object):
@@ -199,6 +226,16 @@ class TestMultiBackend(object):
         backend.create_rsa_verification_ctx("public_key", "sig",
                                             padding.PKCS1v15(), hashes.MD5())
 
+        backend.mgf1_hash_supported(hashes.MD5())
+
+        backend.rsa_padding_supported(padding.PKCS1v15())
+
+        backend.generate_rsa_parameters_supported(65537, 1024)
+
+        backend.encrypt_rsa("public_key", "encryptme", padding.PKCS1v15())
+
+        backend.decrypt_rsa("private_key", "encrypted", padding.PKCS1v15())
+
         backend = MultiBackend([])
         with raises_unsupported_algorithm(
             _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
@@ -217,6 +254,31 @@ class TestMultiBackend(object):
             backend.create_rsa_verification_ctx(
                 "public_key", "sig", padding.PKCS1v15(), hashes.MD5())
 
+        with raises_unsupported_algorithm(
+            _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
+        ):
+            backend.mgf1_hash_supported(hashes.MD5())
+
+        with raises_unsupported_algorithm(
+            _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
+        ):
+            backend.rsa_padding_supported(padding.PKCS1v15())
+
+        with raises_unsupported_algorithm(
+            _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
+        ):
+            backend.generate_rsa_parameters_supported(65537, 1024)
+
+        with raises_unsupported_algorithm(
+            _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
+        ):
+            backend.encrypt_rsa("public_key", "encryptme", padding.PKCS1v15())
+
+        with raises_unsupported_algorithm(
+            _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
+        ):
+            backend.decrypt_rsa("private_key", "encrypted", padding.PKCS1v15())
+
     def test_dsa(self):
         backend = MultiBackend([
             DummyDSABackend()
@@ -227,6 +289,11 @@ class TestMultiBackend(object):
         parameters = object()
         backend.generate_dsa_private_key(parameters)
 
+        backend.create_dsa_verification_ctx("public_key", "sig", hashes.SHA1())
+        backend.create_dsa_signature_ctx("private_key", hashes.SHA1())
+        backend.dsa_hash_supported(hashes.SHA1())
+        backend.dsa_parameters_supported(1, 2, 3)
+
         backend = MultiBackend([])
         with raises_unsupported_algorithm(
             _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
@@ -238,6 +305,28 @@ class TestMultiBackend(object):
         ):
             backend.generate_dsa_private_key(parameters)
 
+        with raises_unsupported_algorithm(
+            _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
+        ):
+            backend.create_dsa_signature_ctx("private_key", hashes.SHA1())
+
+        with raises_unsupported_algorithm(
+            _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
+        ):
+            backend.create_dsa_verification_ctx(
+                "public_key", b"sig", hashes.SHA1()
+            )
+
+        with raises_unsupported_algorithm(
+            _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
+        ):
+            backend.dsa_hash_supported(hashes.SHA1())
+
+        with raises_unsupported_algorithm(
+            _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM
+        ):
+            backend.dsa_parameters_supported('p', 'q', 'g')
+
     def test_cmac(self):
         backend = MultiBackend([
             DummyCMACBackend([algorithms.AES])