| // Copyright 2020 Google LLC |
| // |
| // 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. |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #include "aead_impl.h" |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| #include "tink/aead/aead_config.h" |
| #include "tink/aead/aead_key_templates.h" |
| #include "tink/binary_keyset_writer.h" |
| #include "tink/cleartext_keyset_handle.h" |
| #include "proto/testing/testing_api.grpc.pb.h" |
| |
| namespace crypto { |
| namespace tink { |
| namespace { |
| |
| using ::crypto::tink::AeadKeyTemplates; |
| using ::crypto::tink::BinaryKeysetWriter; |
| using ::crypto::tink::CleartextKeysetHandle; |
| |
| using ::testing::Eq; |
| using ::testing::IsEmpty; |
| using ::tink_testing_api::AeadDecryptRequest; |
| using ::tink_testing_api::AeadEncryptRequest; |
| using ::tink_testing_api::AeadEncryptResponse; |
| using ::tink_testing_api::AeadDecryptResponse; |
| |
| using crypto::tink::KeysetHandle; |
| using google::crypto::tink::KeyTemplate; |
| |
| std::string ValidKeyset() { |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes128Eax(); |
| auto handle_result = KeysetHandle::GenerateNew(key_template); |
| EXPECT_TRUE(handle_result.ok()); |
| std::stringbuf keyset; |
| auto writer_result = |
| BinaryKeysetWriter::New(absl::make_unique<std::ostream>(&keyset)); |
| EXPECT_TRUE(writer_result.ok()); |
| |
| auto status = CleartextKeysetHandle::Write(writer_result.ValueOrDie().get(), |
| *handle_result.ValueOrDie()); |
| EXPECT_TRUE(status.ok()); |
| return keyset.str(); |
| } |
| |
| class AeadImplTest : public ::testing::Test { |
| protected: |
| static void SetUpTestSuite() { ASSERT_TRUE(AeadConfig::Register().ok()); } |
| }; |
| |
| TEST_F(AeadImplTest, EncryptDecryptSuccess) { |
| tink_testing_api::AeadImpl aead; |
| std::string keyset = ValidKeyset(); |
| AeadEncryptRequest enc_request; |
| enc_request.set_keyset(keyset); |
| enc_request.set_plaintext("Plain text"); |
| enc_request.set_associated_data("ad"); |
| AeadEncryptResponse enc_response; |
| |
| EXPECT_TRUE(aead.Encrypt(nullptr, &enc_request, &enc_response).ok()); |
| EXPECT_THAT(enc_response.err(), IsEmpty()); |
| |
| AeadDecryptRequest dec_request; |
| dec_request.set_keyset(keyset); |
| dec_request.set_ciphertext(enc_response.ciphertext()); |
| dec_request.set_associated_data("ad"); |
| AeadDecryptResponse dec_response; |
| |
| EXPECT_TRUE(aead.Decrypt(nullptr, &dec_request, &dec_response).ok()); |
| EXPECT_THAT(dec_response.err(), IsEmpty()); |
| EXPECT_THAT(dec_response.plaintext(), Eq("Plain text")); |
| } |
| |
| TEST_F(AeadImplTest, EncryptBadKeysetFail) { |
| tink_testing_api::AeadImpl aead; |
| AeadEncryptRequest enc_request; |
| enc_request.set_keyset("bad keyset"); |
| enc_request.set_plaintext("Plain text"); |
| enc_request.set_associated_data("ad"); |
| AeadEncryptResponse enc_response; |
| |
| EXPECT_TRUE(aead.Encrypt(nullptr, &enc_request, &enc_response).ok()); |
| EXPECT_THAT(enc_response.err(), Not(IsEmpty())); |
| } |
| |
| TEST_F(AeadImplTest, DecryptBadCiphertextFail) { |
| tink_testing_api::AeadImpl aead; |
| std::string keyset = ValidKeyset(); |
| AeadDecryptRequest dec_request; |
| dec_request.set_keyset(keyset); |
| dec_request.set_ciphertext("bad ciphertext"); |
| dec_request.set_associated_data("ad"); |
| AeadDecryptResponse dec_response; |
| |
| EXPECT_TRUE(aead.Decrypt(nullptr, &dec_request, &dec_response).ok()); |
| EXPECT_THAT(dec_response.err(), Not(IsEmpty())); |
| } |
| |
| } // namespace |
| } // namespace tink |
| } // namespace crypto |