support bytes-like consistently across our asym sign/verify APIs (#10260)

and update our docs to show it as well

4 files changed, 29 insertions, 0 deletions

diff --git a/tests/hazmat/primitives/test_dsa.py b/tests/hazmat/primitives/test_dsa.py
index c3990cd..2928a1e 100644
--- a/tests/hazmat/primitives/test_dsa.py
+++ b/tests/hazmat/primitives/test_dsa.py
@@ -522,6 +522,14 @@ class TestDSASignature:
         public_key = private_key.public_key()
         public_key.verify(signature, message, algorithm)
 
+    def test_sign_verify_buffer(self, backend):
+        private_key = DSA_KEY_1024.private_key(backend)
+        message = bytearray(b"one little message")
+        algorithm = hashes.SHA1()
+        signature = private_key.sign(message, algorithm)
+        public_key = private_key.public_key()
+        public_key.verify(bytearray(signature), message, algorithm)
+
     def test_prehashed_sign(self, backend):
         private_key = DSA_KEY_1024.private_key(backend)
         message = b"one little message"
diff --git a/tests/hazmat/primitives/test_ec.py b/tests/hazmat/primitives/test_ec.py
index d794d42..334e76d 100644
--- a/tests/hazmat/primitives/test_ec.py
+++ b/tests/hazmat/primitives/test_ec.py
@@ -516,6 +516,15 @@ class TestECDSAVectors:
         public_key = private_key.public_key()
         public_key.verify(signature, message, algorithm)
 
+    def test_sign_verify_buffers(self, backend):
+        _skip_curve_unsupported(backend, ec.SECP256R1())
+        message = bytearray(b"one little message")
+        algorithm = ec.ECDSA(hashes.SHA1())
+        private_key = ec.generate_private_key(ec.SECP256R1(), backend)
+        signature = private_key.sign(message, algorithm)
+        public_key = private_key.public_key()
+        public_key.verify(bytearray(signature), message, algorithm)
+
     def test_sign_prehashed(self, backend):
         _skip_curve_unsupported(backend, ec.SECP256R1())
         message = b"one little message"
diff --git a/tests/hazmat/primitives/test_ed25519.py b/tests/hazmat/primitives/test_ed25519.py
index 8e6b33b..26f7d0c 100644
--- a/tests/hazmat/primitives/test_ed25519.py
+++ b/tests/hazmat/primitives/test_ed25519.py
@@ -117,6 +117,12 @@ class TestEd25519Signing:
         with pytest.raises(InvalidSignature):
             key.public_key().verify(b"0" * 64, b"test data")
 
+    def test_sign_verify_buffer(self, backend):
+        key = Ed25519PrivateKey.generate()
+        data = bytearray(b"test data")
+        signature = key.sign(data)
+        key.public_key().verify(bytearray(signature), data)
+
     def test_generate(self, backend):
         key = Ed25519PrivateKey.generate()
         assert key
diff --git a/tests/hazmat/primitives/test_ed448.py b/tests/hazmat/primitives/test_ed448.py
index d363f38..6c7bded 100644
--- a/tests/hazmat/primitives/test_ed448.py
+++ b/tests/hazmat/primitives/test_ed448.py
@@ -86,6 +86,12 @@ class TestEd448Signing:
         with pytest.raises(InvalidSignature):
             key.public_key().verify(b"0" * 64, b"test data")
 
+    def test_sign_verify_buffer(self, backend):
+        key = Ed448PrivateKey.generate()
+        data = bytearray(b"test data")
+        signature = key.sign(data)
+        key.public_key().verify(bytearray(signature), data)
+
     def test_generate(self, backend):
         key = Ed448PrivateKey.generate()
         assert key