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-rw-r--r--tests/wycheproof/__init__.py0
-rw-r--r--tests/wycheproof/test_keywrap.py61
-rw-r--r--tests/wycheproof/test_rsa.py85
-rw-r--r--tests/wycheproof/test_utils.py21
-rw-r--r--tests/wycheproof/test_x25519.py42
5 files changed, 209 insertions, 0 deletions
diff --git a/tests/wycheproof/__init__.py b/tests/wycheproof/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/tests/wycheproof/__init__.py
diff --git a/tests/wycheproof/test_keywrap.py b/tests/wycheproof/test_keywrap.py
new file mode 100644
index 00000000..5f694e4d
--- /dev/null
+++ b/tests/wycheproof/test_keywrap.py
@@ -0,0 +1,61 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import absolute_import, division, print_function
+
+import binascii
+
+import pytest
+
+from cryptography.hazmat.backends.interfaces import CipherBackend
+from cryptography.hazmat.primitives import keywrap
+
+
+@pytest.mark.requires_backend_interface(interface=CipherBackend)
+@pytest.mark.wycheproof_tests("kwp_test.json")
+def test_keywrap_with_padding(backend, wycheproof):
+ wrapping_key = binascii.unhexlify(wycheproof.testcase["key"])
+ key_to_wrap = binascii.unhexlify(wycheproof.testcase["msg"])
+ expected = binascii.unhexlify(wycheproof.testcase["ct"])
+
+ result = keywrap.aes_key_wrap_with_padding(
+ wrapping_key, key_to_wrap, backend
+ )
+ if wycheproof.valid or wycheproof.acceptable:
+ assert result == expected
+
+ if wycheproof.valid or (wycheproof.acceptable and not len(expected) < 16):
+ result = keywrap.aes_key_unwrap_with_padding(
+ wrapping_key, expected, backend
+ )
+ assert result == key_to_wrap
+ else:
+ with pytest.raises(keywrap.InvalidUnwrap):
+ keywrap.aes_key_unwrap_with_padding(
+ wrapping_key, expected, backend
+ )
+
+
+@pytest.mark.requires_backend_interface(interface=CipherBackend)
+@pytest.mark.wycheproof_tests("kw_test.json")
+def test_keywrap(backend, wycheproof):
+ wrapping_key = binascii.unhexlify(wycheproof.testcase["key"])
+ key_to_wrap = binascii.unhexlify(wycheproof.testcase["msg"])
+ expected = binascii.unhexlify(wycheproof.testcase["ct"])
+
+ if (
+ wycheproof.valid or (
+ wycheproof.acceptable and
+ wycheproof.testcase["comment"] != "invalid size of wrapped key"
+ )
+ ):
+ result = keywrap.aes_key_wrap(wrapping_key, key_to_wrap, backend)
+ assert result == expected
+
+ if wycheproof.valid or wycheproof.acceptable:
+ result = keywrap.aes_key_unwrap(wrapping_key, expected, backend)
+ assert result == key_to_wrap
+ else:
+ with pytest.raises(keywrap.InvalidUnwrap):
+ keywrap.aes_key_unwrap(wrapping_key, expected, backend)
diff --git a/tests/wycheproof/test_rsa.py b/tests/wycheproof/test_rsa.py
new file mode 100644
index 00000000..b8f2e19d
--- /dev/null
+++ b/tests/wycheproof/test_rsa.py
@@ -0,0 +1,85 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import absolute_import, division, print_function
+
+import binascii
+
+import pytest
+
+from cryptography.exceptions import InvalidSignature
+from cryptography.hazmat.backends.interfaces import RSABackend
+from cryptography.hazmat.primitives import hashes, serialization
+from cryptography.hazmat.primitives.asymmetric import padding
+
+
+_DIGESTS = {
+ "SHA-1": hashes.SHA1(),
+ "SHA-224": hashes.SHA224(),
+ "SHA-256": hashes.SHA256(),
+ "SHA-384": hashes.SHA384(),
+ "SHA-512": hashes.SHA512(),
+}
+
+
+def should_verify(backend, wycheproof):
+ if wycheproof.valid:
+ return True
+
+ if wycheproof.acceptable:
+ if (
+ backend._lib.CRYPTOGRAPHY_OPENSSL_110_OR_GREATER and
+ wycheproof.has_flag("MissingNull")
+ ):
+ return False
+ return True
+
+ return False
+
+
+@pytest.mark.requires_backend_interface(interface=RSABackend)
+@pytest.mark.supported(
+ only_if=lambda backend: (
+ # TODO: this also skips on LibreSSL, which is ok for now, since these
+ # don't pass on Libre, but we'll need to fix this after they resolve
+ # it.
+ not backend._lib.CRYPTOGRAPHY_OPENSSL_LESS_THAN_102
+ ),
+ skip_message=(
+ "Many of these tests fail on OpenSSL < 1.0.2 and since upstream isn't"
+ " maintaining it, they'll never be fixed."
+ ),
+)
+@pytest.mark.wycheproof_tests(
+ "rsa_signature_test.json",
+ "rsa_signature_2048_sha224_test.json",
+ "rsa_signature_2048_sha256_test.json",
+ "rsa_signature_2048_sha512_test.json",
+ "rsa_signature_3072_sha256_test.json",
+ "rsa_signature_3072_sha384_test.json",
+ "rsa_signature_3072_sha512_test.json",
+ "rsa_signature_4096_sha384_test.json",
+ "rsa_signature_4096_sha512_test.json",
+)
+def test_rsa_signature(backend, wycheproof):
+ key = serialization.load_der_public_key(
+ binascii.unhexlify(wycheproof.testgroup["keyDer"]), backend
+ )
+ digest = _DIGESTS[wycheproof.testgroup["sha"]]
+
+ if should_verify(backend, wycheproof):
+ key.verify(
+ binascii.unhexlify(wycheproof.testcase["sig"]),
+ binascii.unhexlify(wycheproof.testcase["msg"]),
+ padding.PKCS1v15(),
+ digest,
+ )
+ else:
+ with pytest.raises(InvalidSignature):
+ key.verify(
+ binascii.unhexlify(wycheproof.testcase["sig"]),
+ binascii.unhexlify(wycheproof.testcase["msg"]),
+ padding.PKCS1v15(),
+ digest,
+ )
diff --git a/tests/wycheproof/test_utils.py b/tests/wycheproof/test_utils.py
new file mode 100644
index 00000000..82c0a359
--- /dev/null
+++ b/tests/wycheproof/test_utils.py
@@ -0,0 +1,21 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import absolute_import, division, print_function
+
+import pytest
+
+from ..utils import WycheproofTest, skip_if_wycheproof_none
+
+
+def test_wycheproof_test_repr():
+ wycheproof = WycheproofTest({}, {"tcId": 3})
+ assert repr(wycheproof) == "<WycheproofTest({}, {'tcId': 3}, tcId=3)>"
+
+
+def test_skip_if_wycheproof_none():
+ with pytest.raises(pytest.skip.Exception):
+ skip_if_wycheproof_none(None)
+
+ skip_if_wycheproof_none("abc")
diff --git a/tests/wycheproof/test_x25519.py b/tests/wycheproof/test_x25519.py
new file mode 100644
index 00000000..5e6253ce
--- /dev/null
+++ b/tests/wycheproof/test_x25519.py
@@ -0,0 +1,42 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import absolute_import, division, print_function
+
+import binascii
+
+import pytest
+
+from cryptography.hazmat.backends.interfaces import DHBackend
+from cryptography.hazmat.primitives.asymmetric.x25519 import (
+ X25519PrivateKey, X25519PublicKey
+)
+
+
+@pytest.mark.supported(
+ only_if=lambda backend: backend.x25519_supported(),
+ skip_message="Requires OpenSSL with X25519 support"
+)
+@pytest.mark.requires_backend_interface(interface=DHBackend)
+@pytest.mark.wycheproof_tests("x25519_test.json")
+def test_x25519(backend, wycheproof):
+ assert list(wycheproof.testgroup.items()) == [("curve", "curve25519")]
+
+ private_key = X25519PrivateKey._from_private_bytes(
+ binascii.unhexlify(wycheproof.testcase["private"])
+ )
+ public_key = X25519PublicKey.from_public_bytes(
+ binascii.unhexlify(wycheproof.testcase["public"])
+ )
+
+ assert wycheproof.valid or wycheproof.acceptable
+
+ expected = binascii.unhexlify(wycheproof.testcase["shared"])
+ if expected == b"\x00" * 32:
+ assert wycheproof.acceptable
+ # OpenSSL returns an error on all zeros shared key
+ with pytest.raises(ValueError):
+ private_key.exchange(public_key)
+ else:
+ assert private_key.exchange(public_key) == expected
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-03 13:05:54 +0000