| // Copyright 2019 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 "tink/aead/kms_envelope_aead_key_manager.h" |
| |
| #include <stdlib.h> |
| |
| #include <memory> |
| #include <string> |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| #include "absl/memory/memory.h" |
| #include "absl/status/status.h" |
| #include "tink/aead.h" |
| #include "tink/aead/aead_key_templates.h" |
| #include "tink/aead/aes_eax_key_manager.h" |
| #include "tink/aead/kms_envelope_aead.h" |
| #include "tink/kms_client.h" |
| #include "tink/kms_clients.h" |
| #include "tink/registry.h" |
| #include "tink/subtle/aead_test_util.h" |
| #include "tink/util/status.h" |
| #include "tink/util/statusor.h" |
| #include "tink/util/test_matchers.h" |
| #include "tink/util/test_util.h" |
| #include "proto/kms_envelope.pb.h" |
| #include "proto/tink.pb.h" |
| |
| namespace crypto { |
| namespace tink { |
| |
| using ::crypto::tink::test::DummyAead; |
| using ::crypto::tink::test::DummyKmsClient; |
| using ::crypto::tink::test::IsOk; |
| using ::crypto::tink::test::StatusIs; |
| using ::google::crypto::tink::KeyData; |
| using ::google::crypto::tink::KmsEnvelopeAeadKey; |
| using ::google::crypto::tink::KmsEnvelopeAeadKeyFormat; |
| using ::testing::Eq; |
| using ::testing::Not; |
| |
| namespace { |
| |
| TEST(KmsEnvelopeAeadKeyManagerTest, Basics) { |
| EXPECT_THAT(KmsEnvelopeAeadKeyManager().get_version(), Eq(0)); |
| EXPECT_THAT(KmsEnvelopeAeadKeyManager().get_key_type(), |
| Eq("type.googleapis.com/google.crypto.tink.KmsEnvelopeAeadKey")); |
| EXPECT_THAT(KmsEnvelopeAeadKeyManager().key_material_type(), |
| Eq(google::crypto::tink::KeyData::REMOTE)); |
| } |
| |
| TEST(KmsEnvelopeAeadKeyManagerTest, ValidateEmptyKey) { |
| EXPECT_THAT(KmsEnvelopeAeadKeyManager().ValidateKey(KmsEnvelopeAeadKey()), |
| StatusIs(absl::StatusCode::kInvalidArgument)); |
| } |
| |
| TEST(KmsEnvelopeAeadKeyManagerTest, ValidateValidKey) { |
| KmsEnvelopeAeadKey key; |
| key.set_version(0); |
| key.mutable_params()->set_kek_uri("Some uri"); |
| *(key.mutable_params()->mutable_dek_template()) = |
| AeadKeyTemplates::Aes128Eax(); |
| |
| EXPECT_THAT(KmsEnvelopeAeadKeyManager().ValidateKey(key), IsOk()); |
| } |
| |
| TEST(KmsEnvelopeAeadKeyManagerTest, ValidateWrongVersion) { |
| KmsEnvelopeAeadKey key; |
| key.set_version(1); |
| key.mutable_params()->set_kek_uri("Some uri"); |
| *(key.mutable_params()->mutable_dek_template()) = |
| AeadKeyTemplates::Aes128Eax(); |
| EXPECT_THAT(KmsEnvelopeAeadKeyManager().ValidateKey(key), Not(IsOk())); |
| } |
| |
| TEST(KmsEnvelopeAeadKeyManagerTest, ValidateNoUri) { |
| KmsEnvelopeAeadKey key; |
| key.set_version(1); |
| *(key.mutable_params()->mutable_dek_template()) = |
| AeadKeyTemplates::Aes128Eax(); |
| EXPECT_THAT(KmsEnvelopeAeadKeyManager().ValidateKey(key), Not(IsOk())); |
| } |
| |
| TEST(KmsEnvelopeAeadKeyManagerTest, ValidateKeyFormatEmptyKey) { |
| EXPECT_THAT( |
| KmsEnvelopeAeadKeyManager().ValidateKeyFormat(KmsEnvelopeAeadKeyFormat()), |
| StatusIs(absl::StatusCode::kInvalidArgument)); |
| } |
| |
| TEST(KmsEnvelopeAeadKeyManagerTest, ValidateKeyFormatValidKey) { |
| KmsEnvelopeAeadKeyFormat key_format; |
| key_format.set_kek_uri("Some uri"); |
| *key_format.mutable_dek_template() = AeadKeyTemplates::Aes128Eax(); |
| EXPECT_THAT(KmsEnvelopeAeadKeyManager().ValidateKeyFormat(key_format), |
| IsOk()); |
| } |
| |
| TEST(KmsEnvelopeAeadKeyManagerTest, ValidateKeyFormatNoUri) { |
| KmsEnvelopeAeadKeyFormat key_format; |
| *key_format.mutable_dek_template() = AeadKeyTemplates::Aes128Eax(); |
| EXPECT_THAT(KmsEnvelopeAeadKeyManager().ValidateKeyFormat(key_format), |
| Not(IsOk())); |
| } |
| |
| TEST(KmsEnvelopeAeadKeyManagerTest, ValidateKeyFormatNoTemplate) { |
| KmsEnvelopeAeadKeyFormat key_format; |
| *key_format.mutable_dek_template() = AeadKeyTemplates::Aes128Eax(); |
| EXPECT_THAT(KmsEnvelopeAeadKeyManager().ValidateKeyFormat(key_format), |
| Not(IsOk())); |
| } |
| |
| TEST(KmsEnvelopeAeadKeyManagerTest, CreateKey) { |
| KmsEnvelopeAeadKeyFormat key_format; |
| key_format.set_kek_uri("Some uri"); |
| *key_format.mutable_dek_template() = AeadKeyTemplates::Aes128Eax(); |
| auto key_or = KmsEnvelopeAeadKeyManager().CreateKey(key_format); |
| ASSERT_THAT(key_or, IsOk()); |
| EXPECT_THAT(key_or.value().params().kek_uri(), Eq(key_format.kek_uri())); |
| EXPECT_THAT(key_or.value().params().dek_template().value(), |
| Eq(key_format.dek_template().value())); |
| } |
| |
| class KmsEnvelopeAeadKeyManagerCreateTest : public ::testing::Test { |
| public: |
| // The KmsClients class has a global variable which keeps the registered |
| // clients. To reflect that in the test, we set them up in the SetUpTestSuite |
| // function. |
| static void SetUpTestSuite() { |
| if (!KmsClients::Add( |
| absl::make_unique<DummyKmsClient>("prefix1", "prefix1:some_key1")) |
| .ok()) |
| abort(); |
| if (!KmsClients::Add(absl::make_unique<DummyKmsClient>("prefix2", "")).ok()) |
| abort(); |
| |
| if (!Registry::RegisterKeyTypeManager(absl::make_unique<AesEaxKeyManager>(), |
| true) |
| .ok()) |
| abort(); |
| } |
| }; |
| |
| TEST_F(KmsEnvelopeAeadKeyManagerCreateTest, CreateAead) { |
| KmsEnvelopeAeadKey key; |
| key.set_version(0); |
| key.mutable_params()->set_kek_uri("prefix1:some_key1"); |
| *(key.mutable_params()->mutable_dek_template()) = |
| AeadKeyTemplates::Aes128Eax(); |
| |
| auto kms_aead = KmsEnvelopeAeadKeyManager().GetPrimitive<Aead>(key); |
| ASSERT_THAT(kms_aead, IsOk()); |
| |
| auto direct_aead = |
| KmsEnvelopeAead::New(key.params().dek_template(), |
| absl::make_unique<DummyAead>("prefix1:some_key1")); |
| ASSERT_THAT(direct_aead, IsOk()); |
| |
| EXPECT_THAT(EncryptThenDecrypt(*kms_aead.value(), *direct_aead.value(), |
| "plaintext", "aad"), |
| IsOk()); |
| } |
| |
| TEST_F(KmsEnvelopeAeadKeyManagerCreateTest, CreateAeadWrongKeyName) { |
| KmsEnvelopeAeadKey key; |
| key.set_version(0); |
| key.mutable_params()->set_kek_uri("prefix1:some_other_key"); |
| *(key.mutable_params()->mutable_dek_template()) = |
| AeadKeyTemplates::Aes128Eax(); |
| |
| auto kms_aead = KmsEnvelopeAeadKeyManager().GetPrimitive<Aead>(key); |
| ASSERT_THAT(kms_aead, Not(IsOk())); |
| } |
| |
| TEST_F(KmsEnvelopeAeadKeyManagerCreateTest, CreateAeadWrongTypeUrl) { |
| KmsEnvelopeAeadKey key; |
| key.set_version(0); |
| key.mutable_params()->set_kek_uri("prefix1:some_other_key"); |
| *(key.mutable_params()->mutable_dek_template()) = |
| AeadKeyTemplates::Aes128Eax(); |
| key.mutable_params()->mutable_dek_template()->set_type_url( |
| "Some unkonwn type url"); |
| |
| auto kms_aead = KmsEnvelopeAeadKeyManager().GetPrimitive<Aead>(key); |
| ASSERT_THAT(kms_aead, Not(IsOk())); |
| } |
| |
| TEST_F(KmsEnvelopeAeadKeyManagerCreateTest, CreateAeadWrongPrefix) { |
| KmsEnvelopeAeadKey key; |
| key.set_version(0); |
| key.mutable_params()->set_kek_uri("non-existing-prefix:some_key1"); |
| *(key.mutable_params()->mutable_dek_template()) = |
| AeadKeyTemplates::Aes128Eax(); |
| |
| auto kms_aead = KmsEnvelopeAeadKeyManager().GetPrimitive<Aead>(key); |
| ASSERT_THAT(kms_aead, Not(IsOk())); |
| } |
| |
| TEST_F(KmsEnvelopeAeadKeyManagerCreateTest, CreateAeadUnboundKey) { |
| KmsEnvelopeAeadKey key; |
| key.set_version(0); |
| key.mutable_params()->set_kek_uri("prefix2:some_key2"); |
| *(key.mutable_params()->mutable_dek_template()) = |
| AeadKeyTemplates::Aes128Eax(); |
| |
| auto kms_aead = KmsEnvelopeAeadKeyManager().GetPrimitive<Aead>(key); |
| ASSERT_THAT(kms_aead, IsOk()); |
| |
| auto direct_aead = |
| KmsEnvelopeAead::New(key.params().dek_template(), |
| absl::make_unique<DummyAead>("prefix2:some_key2")); |
| ASSERT_THAT(direct_aead, IsOk()); |
| |
| EXPECT_THAT(EncryptThenDecrypt(*kms_aead.value(), *direct_aead.value(), |
| "plaintext", "aad"), |
| IsOk()); |
| } |
| |
| } // namespace |
| } // namespace tink |
| } // namespace crypto |