1 files changed, 33 insertions, 0 deletions
diff --git a/tests/hazmat/primitives/utils.py b/tests/hazmat/primitives/utils.py
index f0a00319..31491023 100644
--- a/tests/hazmat/primitives/utils.py
+++ b/tests/hazmat/primitives/utils.py
@@ -21,6 +21,7 @@ import itertools
 import pytest
 
 from cryptography.hazmat.primitives import hashes, hmac
+from cryptography.hazmat.primitives.asymmetric import rsa, padding
 from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
 from cryptography.hazmat.primitives.ciphers import Cipher
 from cryptography.hazmat.primitives.kdf.hkdf import HKDF
@@ -373,3 +374,35 @@ def generate_hkdf_test(param_loader, path, file_names, algorithm):
         hkdf_test(backend, algorithm, params)
 
     return test_hkdf
+
+
+def generate_rsa_pss_test(param_loader, path, file_names, hash_alg):
+    all_params = _load_all_params(path, file_names, param_loader)
+    all_params = [i for i in all_params
+                  if i["algorithm"] == hash_alg.name.upper()]
+
+    @pytest.mark.parametrize("params", all_params)
+    def test_rsa_pss(self, backend, params):
+        rsa_pss_test(backend, params, hash_alg)
+
+    return test_rsa_pss
+
+
+def rsa_pss_test(backend, params, hash_alg):
+    public_key = rsa.RSAPublicKey(
+        public_exponent=params["public_exponent"],
+        modulus=params["modulus"]
+    )
+    verifier = public_key.verifier(
+        binascii.unhexlify(params["s"]),
+        padding.PSS(
+            mgf=padding.MGF1(
+                algorithm=hash_alg,
+                salt_length=params["salt_length"]
+            )
+        ),
+        hash_alg,
+        backend
+    )
+    verifier.update(binascii.unhexlify(params["msg"]))
+    verifier.verify()