| // Copyright 2018 Google Inc. |
| // |
| // 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 "tink/daead/deterministic_aead_wrapper.h" |
| |
| #include "gtest/gtest.h" |
| #include "absl/memory/memory.h" |
| #include "tink/deterministic_aead.h" |
| #include "tink/primitive_set.h" |
| #include "tink/util/status.h" |
| #include "tink/util/test_matchers.h" |
| #include "tink/util/test_util.h" |
| |
| using ::crypto::tink::test::DummyDeterministicAead; |
| using ::crypto::tink::test::IsOk; |
| using ::google::crypto::tink::Keyset; |
| using ::google::crypto::tink::KeyStatusType; |
| using ::google::crypto::tink::OutputPrefixType; |
| |
| namespace crypto { |
| namespace tink { |
| namespace { |
| |
| class DeterministicAeadSetWrapperTest : public ::testing::Test { |
| protected: |
| void SetUp() override { |
| } |
| void TearDown() override { |
| } |
| }; |
| |
| TEST_F(DeterministicAeadSetWrapperTest, testBasic) { |
| { // daead_set is nullptr. |
| auto daead_result = |
| DeterministicAeadWrapper().Wrap(nullptr); |
| EXPECT_FALSE(daead_result.ok()); |
| EXPECT_EQ(util::error::INTERNAL, daead_result.status().error_code()); |
| EXPECT_PRED_FORMAT2(testing::IsSubstring, "non-NULL", |
| daead_result.status().error_message()); |
| } |
| |
| { // daead_set has no primary primitive. |
| std::unique_ptr<PrimitiveSet<DeterministicAead>> daead_set( |
| new PrimitiveSet<DeterministicAead>()); |
| auto daead_result = |
| DeterministicAeadWrapper().Wrap(std::move(daead_set)); |
| EXPECT_FALSE(daead_result.ok()); |
| EXPECT_EQ(util::error::INVALID_ARGUMENT, |
| daead_result.status().error_code()); |
| EXPECT_PRED_FORMAT2(testing::IsSubstring, "no primary", |
| daead_result.status().error_message()); |
| } |
| |
| { // Correct daead_set; |
| Keyset::Key* key; |
| Keyset keyset; |
| |
| uint32_t key_id_0 = 1234543; |
| key = keyset.add_key(); |
| key->set_output_prefix_type(OutputPrefixType::TINK); |
| key->set_key_id(key_id_0); |
| key->set_status(KeyStatusType::ENABLED); |
| |
| uint32_t key_id_1 = 726329; |
| key = keyset.add_key(); |
| key->set_output_prefix_type(OutputPrefixType::LEGACY); |
| key->set_key_id(key_id_1); |
| key->set_status(KeyStatusType::ENABLED); |
| |
| uint32_t key_id_2 = 7213743; |
| key = keyset.add_key(); |
| key->set_output_prefix_type(OutputPrefixType::TINK); |
| key->set_key_id(key_id_2); |
| key->set_status(KeyStatusType::ENABLED); |
| |
| std::string daead_name_0 = "daead0"; |
| std::string daead_name_1 = "daead1"; |
| std::string daead_name_2 = "daead2"; |
| std::unique_ptr<PrimitiveSet<DeterministicAead>> daead_set( |
| new PrimitiveSet<DeterministicAead>()); |
| std::unique_ptr<DeterministicAead> daead( |
| new DummyDeterministicAead(daead_name_0)); |
| auto entry_result = |
| daead_set->AddPrimitive(std::move(daead), keyset.key(0)); |
| ASSERT_TRUE(entry_result.ok()); |
| daead = absl::make_unique<DummyDeterministicAead>(daead_name_1); |
| entry_result = daead_set->AddPrimitive(std::move(daead), keyset.key(1)); |
| ASSERT_TRUE(entry_result.ok()); |
| daead = absl::make_unique<DummyDeterministicAead>(daead_name_2); |
| entry_result = daead_set->AddPrimitive(std::move(daead), keyset.key(2)); |
| ASSERT_TRUE(entry_result.ok()); |
| // The last key is the primary. |
| ASSERT_THAT(daead_set->set_primary(entry_result.ValueOrDie()), IsOk()); |
| |
| // Wrap daead_set and test the resulting DeterministicAead. |
| auto daead_result = |
| DeterministicAeadWrapper().Wrap(std::move(daead_set)); |
| EXPECT_TRUE(daead_result.ok()) << daead_result.status(); |
| daead = std::move(daead_result.ValueOrDie()); |
| std::string plaintext = "some_plaintext"; |
| std::string aad = "some_aad"; |
| |
| auto encrypt_result = daead->EncryptDeterministically(plaintext, aad); |
| EXPECT_TRUE(encrypt_result.ok()) << encrypt_result.status(); |
| std::string ciphertext = encrypt_result.ValueOrDie(); |
| EXPECT_PRED_FORMAT2(testing::IsSubstring, daead_name_2, ciphertext); |
| |
| auto decrypt_result = daead->DecryptDeterministically(ciphertext, aad); |
| EXPECT_TRUE(decrypt_result.ok()) << decrypt_result.status(); |
| EXPECT_EQ(plaintext, decrypt_result.ValueOrDie()); |
| |
| decrypt_result = |
| daead->DecryptDeterministically("some bad ciphertext", aad); |
| EXPECT_FALSE(decrypt_result.ok()); |
| EXPECT_EQ(util::error::INVALID_ARGUMENT, |
| decrypt_result.status().error_code()); |
| EXPECT_PRED_FORMAT2(testing::IsSubstring, "decryption failed", |
| decrypt_result.status().error_message()); |
| } |
| } |
| |
| } // namespace |
| } // namespace tink |
| } // namespace crypto |