blob: ede4f154fb64c4c7f54553aa93b80228e520b440 [file] [log] [blame]
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Cross-language tests for Public-Key Signatures."""
from absl.testing import absltest
from absl.testing import parameterized
import tink
from tink import signature
from util import supported_key_types
from util import testing_servers
SUPPORTED_LANGUAGES = (testing_servers
.SUPPORTED_LANGUAGES_BY_PRIMITIVE['signature'])
def setUpModule():
signature.register()
testing_servers.start()
def tearDownModule():
testing_servers.stop()
class SignaturePythonTest(parameterized.TestCase):
@parameterized.parameters(
supported_key_types.test_cases(supported_key_types.SIGNATURE_KEY_TYPES))
def test_encrypt_decrypt(self, key_template_name, supported_langs):
self.assertNotEmpty(supported_langs)
key_template = supported_key_types.KEY_TEMPLATE[key_template_name]
# Take the first supported language to generate the private keyset.
private_keyset = testing_servers.new_keyset(supported_langs[0],
key_template)
supported_signers = [
testing_servers.public_key_sign(lang, private_keyset)
for lang in supported_langs
]
unsupported_signers = [
testing_servers.public_key_sign(lang, private_keyset)
for lang in SUPPORTED_LANGUAGES
if lang not in supported_langs
]
public_keyset = testing_servers.public_keyset('java', private_keyset)
supported_verifiers = [
testing_servers.public_key_verify(lang, public_keyset)
for lang in supported_langs
]
unsupported_verifiers = [
testing_servers.public_key_verify(lang, public_keyset)
for lang in testing_servers.LANGUAGES
if lang not in supported_langs
]
for signer in supported_signers:
message = (
b'A message to be signed using key_template %s in %s.'
% (key_template_name.encode('utf8'), signer.lang.encode('utf8')))
sign = signer.sign(message)
for verifier in supported_verifiers:
self.assertIsNone(verifier.verify(sign, message))
for verifier in unsupported_verifiers:
with self.assertRaises(tink.TinkError):
verifier.verify(sign, message)
for signer in unsupported_signers:
with self.assertRaises(tink.TinkError):
_ = signer.sign(message)
if __name__ == '__main__':
absltest.main()