| // Copyright 2018 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/aead_key_templates.h" |
| |
| #include <memory> |
| #include <string> |
| #include <utility> |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| #include "absl/status/status.h" |
| #include "absl/status/statusor.h" |
| #include "tink/aead.h" |
| #include "tink/aead/aead_config.h" |
| #include "tink/aead/aes_ctr_hmac_aead_key_manager.h" |
| #include "tink/aead/aes_eax_key_manager.h" |
| #include "tink/aead/aes_gcm_key_manager.h" |
| #include "tink/aead/aes_gcm_siv_key_manager.h" |
| #include "tink/aead/kms_envelope_aead_key_manager.h" |
| #include "tink/aead/xchacha20_poly1305_key_manager.h" |
| #include "tink/core/key_manager_impl.h" |
| #include "tink/key_manager.h" |
| #include "tink/keyset_handle.h" |
| #include "tink/subtle/aead_test_util.h" |
| #include "tink/util/fake_kms_client.h" |
| #include "tink/util/status.h" |
| #include "tink/util/test_matchers.h" |
| #include "proto/aes_ctr.pb.h" |
| #include "proto/aes_ctr_hmac_aead.pb.h" |
| #include "proto/aes_eax.pb.h" |
| #include "proto/aes_gcm.pb.h" |
| #include "proto/aes_gcm_siv.pb.h" |
| #include "proto/common.pb.h" |
| #include "proto/hmac.pb.h" |
| #include "proto/kms_envelope.pb.h" |
| #include "proto/tink.pb.h" |
| #include "proto/xchacha20_poly1305.pb.h" |
| |
| using google::crypto::tink::AesCtrHmacAeadKeyFormat; |
| using google::crypto::tink::AesEaxKeyFormat; |
| using google::crypto::tink::AesGcmKeyFormat; |
| using google::crypto::tink::AesGcmSivKeyFormat; |
| using google::crypto::tink::HashType; |
| using google::crypto::tink::KeyTemplate; |
| using google::crypto::tink::KmsEnvelopeAeadKeyFormat; |
| using google::crypto::tink::OutputPrefixType; |
| |
| namespace crypto { |
| namespace tink { |
| namespace { |
| |
| using ::crypto::tink::test::IsOk; |
| using ::testing::Eq; |
| using ::testing::Ref; |
| |
| TEST(AeadKeyTemplatesTest, testAesEaxKeyTemplates) { |
| std::string type_url = "type.googleapis.com/google.crypto.tink.AesEaxKey"; |
| |
| { // Test Aes128Eax(). |
| // Check that returned template is correct. |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes128Eax(); |
| EXPECT_EQ(type_url, key_template.type_url()); |
| EXPECT_EQ(OutputPrefixType::TINK, key_template.output_prefix_type()); |
| AesEaxKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_EQ(16, key_format.key_size()); |
| EXPECT_EQ(16, key_format.params().iv_size()); |
| |
| // Check that reference to the same object is returned. |
| const KeyTemplate& key_template_2 = AeadKeyTemplates::Aes128Eax(); |
| EXPECT_EQ(&key_template, &key_template_2); |
| |
| // Check that the template works with the key manager. |
| AesEaxKeyManager key_type_manager; |
| auto key_manager = internal::MakeKeyManager<Aead>(&key_type_manager); |
| EXPECT_EQ(key_manager->get_key_type(), key_template.type_url()); |
| auto new_key_result = |
| key_manager->get_key_factory().NewKey(key_template.value()); |
| EXPECT_TRUE(new_key_result.ok()) << new_key_result.status(); |
| } |
| |
| { // Test Aes256Eax(). |
| // Check that returned template is correct. |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes256Eax(); |
| EXPECT_EQ(type_url, key_template.type_url()); |
| EXPECT_EQ(OutputPrefixType::TINK, key_template.output_prefix_type()); |
| AesEaxKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_EQ(32, key_format.key_size()); |
| EXPECT_EQ(16, key_format.params().iv_size()); |
| |
| // Check that reference to the same object is returned. |
| const KeyTemplate& key_template_2 = AeadKeyTemplates::Aes256Eax(); |
| EXPECT_EQ(&key_template, &key_template_2); |
| |
| // Check that the template works with the key manager. |
| AesEaxKeyManager key_type_manager; |
| auto key_manager = internal::MakeKeyManager<Aead>(&key_type_manager); |
| EXPECT_EQ(key_manager->get_key_type(), key_template.type_url()); |
| auto new_key_result = |
| key_manager->get_key_factory().NewKey(key_template.value()); |
| EXPECT_TRUE(new_key_result.ok()) << new_key_result.status(); |
| } |
| } |
| |
| TEST(Aes128GcmNoPrefix, Basics) { |
| EXPECT_THAT(AeadKeyTemplates::Aes128GcmNoPrefix().type_url(), |
| Eq("type.googleapis.com/google.crypto.tink.AesGcmKey")); |
| EXPECT_THAT(AeadKeyTemplates::Aes128GcmNoPrefix().type_url(), |
| Eq(AesGcmKeyManager().get_key_type())); |
| } |
| |
| TEST(Aes128GcmNoPrefix, OutputPrefixType) { |
| EXPECT_THAT(AeadKeyTemplates::Aes128GcmNoPrefix().output_prefix_type(), |
| Eq(OutputPrefixType::RAW)); |
| } |
| |
| TEST(Aes128GcmNoPrefix, MultipleCallsSameReference) { |
| EXPECT_THAT(AeadKeyTemplates::Aes128GcmNoPrefix(), |
| Ref(AeadKeyTemplates::Aes128GcmNoPrefix())); |
| } |
| |
| TEST(Aes128GcmNoPrefix, WorksWithKeyTypeManager) { |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes128GcmNoPrefix(); |
| AesGcmKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_THAT(AesGcmKeyManager().ValidateKeyFormat(key_format), IsOk()); |
| } |
| |
| TEST(Aes128GcmNoPrefix, CheckValues) { |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes128GcmNoPrefix(); |
| AesGcmKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_THAT(key_format.key_size(), Eq(16)); |
| } |
| |
| TEST(Aes256GcmNoPrefix, Basics) { |
| EXPECT_THAT(AeadKeyTemplates::Aes256GcmNoPrefix().type_url(), |
| Eq("type.googleapis.com/google.crypto.tink.AesGcmKey")); |
| EXPECT_THAT(AeadKeyTemplates::Aes256GcmNoPrefix().type_url(), |
| Eq(AesGcmKeyManager().get_key_type())); |
| } |
| |
| TEST(Aes256GcmNoPrefix, OutputPrefixType) { |
| EXPECT_THAT(AeadKeyTemplates::Aes256GcmNoPrefix().output_prefix_type(), |
| Eq(OutputPrefixType::RAW)); |
| } |
| |
| TEST(Aes256GcmNoPrefix, MultipleCallsSameReference) { |
| EXPECT_THAT(AeadKeyTemplates::Aes256GcmNoPrefix(), |
| Ref(AeadKeyTemplates::Aes256GcmNoPrefix())); |
| } |
| |
| TEST(Aes256GcmNoPrefix, WorksWithKeyTypeManager) { |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes256GcmNoPrefix(); |
| AesGcmKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_THAT(AesGcmKeyManager().ValidateKeyFormat(key_format), IsOk()); |
| } |
| |
| TEST(Aes256GcmNoPrefix, CheckValues) { |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes256GcmNoPrefix(); |
| AesGcmKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_THAT(key_format.key_size(), Eq(32)); |
| } |
| |
| TEST(Aes256Gcm, Basics) { |
| EXPECT_THAT(AeadKeyTemplates::Aes256Gcm().type_url(), |
| Eq("type.googleapis.com/google.crypto.tink.AesGcmKey")); |
| EXPECT_THAT(AeadKeyTemplates::Aes256Gcm().type_url(), |
| Eq(AesGcmKeyManager().get_key_type())); |
| } |
| |
| TEST(Aes256Gcm, OutputPrefixType) { |
| EXPECT_THAT(AeadKeyTemplates::Aes256Gcm().output_prefix_type(), |
| Eq(OutputPrefixType::TINK)); |
| } |
| |
| TEST(Aes256Gcm, MultipleCallsSameReference) { |
| EXPECT_THAT(AeadKeyTemplates::Aes256Gcm(), |
| Ref(AeadKeyTemplates::Aes256Gcm())); |
| } |
| |
| TEST(Aes256Gcm, WorksWithKeyTypeManager) { |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes256Gcm(); |
| AesGcmKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_THAT(AesGcmKeyManager().ValidateKeyFormat(key_format), IsOk()); |
| } |
| |
| TEST(Aes256Gcm, CheckValues) { |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes256Gcm(); |
| AesGcmKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_THAT(key_format.key_size(), Eq(32)); |
| } |
| |
| TEST(Aes128Gcm, Basics) { |
| EXPECT_THAT(AeadKeyTemplates::Aes128Gcm().type_url(), |
| Eq("type.googleapis.com/google.crypto.tink.AesGcmKey")); |
| EXPECT_THAT(AeadKeyTemplates::Aes128Gcm().type_url(), |
| Eq(AesGcmKeyManager().get_key_type())); |
| } |
| |
| TEST(Aes128Gcm, OutputPrefixType) { |
| EXPECT_THAT(AeadKeyTemplates::Aes128Gcm().output_prefix_type(), |
| Eq(OutputPrefixType::TINK)); |
| } |
| |
| TEST(Aes128Gcm, MultipleCallsSameReference) { |
| EXPECT_THAT(AeadKeyTemplates::Aes128Gcm(), |
| Ref(AeadKeyTemplates::Aes128Gcm())); |
| } |
| |
| TEST(Aes128Gcm, WorksWithKeyTypeManager) { |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes128Gcm(); |
| AesGcmKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_THAT(AesGcmKeyManager().ValidateKeyFormat(key_format), IsOk()); |
| } |
| |
| TEST(Aes128Gcm, CheckValues) { |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes128Gcm(); |
| AesGcmKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_THAT(key_format.key_size(), Eq(16)); |
| } |
| |
| TEST(AeadKeyTemplatesTest, testAesGcmSivKeyTemplates) { |
| std::string type_url = "type.googleapis.com/google.crypto.tink.AesGcmSivKey"; |
| |
| { // Test Aes128GcmSiv(). |
| // Check that returned template is correct. |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes128GcmSiv(); |
| EXPECT_EQ(type_url, key_template.type_url()); |
| EXPECT_EQ(OutputPrefixType::TINK, key_template.output_prefix_type()); |
| AesGcmSivKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_EQ(16, key_format.key_size()); |
| |
| // Check that reference to the same object is returned. |
| const KeyTemplate& key_template_2 = AeadKeyTemplates::Aes128GcmSiv(); |
| EXPECT_EQ(&key_template, &key_template_2); |
| |
| // Check that the template works with the key manager. |
| AesGcmSivKeyManager key_type_manager; |
| auto key_manager = internal::MakeKeyManager<Aead>(&key_type_manager); |
| EXPECT_EQ(key_manager->get_key_type(), key_template.type_url()); |
| auto new_key_result = |
| key_manager->get_key_factory().NewKey(key_template.value()); |
| EXPECT_TRUE(new_key_result.ok()) << new_key_result.status(); |
| } |
| |
| { // Test Aes256GcmSiv(). |
| // Check that returned template is correct. |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes256GcmSiv(); |
| EXPECT_EQ(type_url, key_template.type_url()); |
| EXPECT_EQ(OutputPrefixType::TINK, key_template.output_prefix_type()); |
| AesGcmSivKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_EQ(32, key_format.key_size()); |
| |
| // Check that reference to the same object is returned. |
| const KeyTemplate& key_template_2 = AeadKeyTemplates::Aes256GcmSiv(); |
| EXPECT_EQ(&key_template, &key_template_2); |
| |
| // Check that the template works with the key manager. |
| AesGcmSivKeyManager key_type_manager; |
| auto key_manager = internal::MakeKeyManager<Aead>(&key_type_manager); |
| EXPECT_EQ(key_manager->get_key_type(), key_template.type_url()); |
| auto new_key_result = |
| key_manager->get_key_factory().NewKey(key_template.value()); |
| EXPECT_TRUE(new_key_result.ok()) << new_key_result.status(); |
| } |
| } |
| |
| TEST(AeadKeyTemplatesTest, testAesCtrHmacAeadKeyTemplates) { |
| std::string type_url = |
| "type.googleapis.com/google.crypto.tink.AesCtrHmacAeadKey"; |
| |
| { // Test Aes128CtrHmacSha256(). |
| // Check that returned template is correct. |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes128CtrHmacSha256(); |
| EXPECT_EQ(type_url, key_template.type_url()); |
| EXPECT_EQ(OutputPrefixType::TINK, key_template.output_prefix_type()); |
| AesCtrHmacAeadKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_EQ(16, key_format.aes_ctr_key_format().key_size()); |
| EXPECT_EQ(16, key_format.aes_ctr_key_format().params().iv_size()); |
| EXPECT_EQ(32, key_format.hmac_key_format().key_size()); |
| EXPECT_EQ(16, key_format.hmac_key_format().params().tag_size()); |
| EXPECT_EQ(HashType::SHA256, key_format.hmac_key_format().params().hash()); |
| |
| // Check that reference to the same object is returned. |
| const KeyTemplate& key_template_2 = AeadKeyTemplates::Aes128CtrHmacSha256(); |
| EXPECT_EQ(&key_template, &key_template_2); |
| |
| // Check that the template works with the key manager. |
| AesCtrHmacAeadKeyManager key_type_manager; |
| auto key_manager = internal::MakeKeyManager<Aead>(&key_type_manager); |
| EXPECT_EQ(key_manager->get_key_type(), key_template.type_url()); |
| auto new_key_result = |
| key_manager->get_key_factory().NewKey(key_template.value()); |
| EXPECT_TRUE(new_key_result.ok()) << new_key_result.status(); |
| } |
| |
| { // Test Aes256CtrHmacSha256(). |
| // Check that returned template is correct. |
| const KeyTemplate& key_template = AeadKeyTemplates::Aes256CtrHmacSha256(); |
| EXPECT_EQ(type_url, key_template.type_url()); |
| EXPECT_EQ(OutputPrefixType::TINK, key_template.output_prefix_type()); |
| AesCtrHmacAeadKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_EQ(32, key_format.aes_ctr_key_format().key_size()); |
| EXPECT_EQ(16, key_format.aes_ctr_key_format().params().iv_size()); |
| EXPECT_EQ(32, key_format.hmac_key_format().key_size()); |
| EXPECT_EQ(32, key_format.hmac_key_format().params().tag_size()); |
| EXPECT_EQ(HashType::SHA256, key_format.hmac_key_format().params().hash()); |
| |
| // Check that reference to the same object is returned. |
| const KeyTemplate& key_template_2 = AeadKeyTemplates::Aes256CtrHmacSha256(); |
| EXPECT_EQ(&key_template, &key_template_2); |
| |
| // Check that the template works with the key manager. |
| AesCtrHmacAeadKeyManager key_type_manager; |
| auto key_manager = internal::MakeKeyManager<Aead>(&key_type_manager); |
| EXPECT_EQ(key_manager->get_key_type(), key_template.type_url()); |
| auto new_key_result = |
| key_manager->get_key_factory().NewKey(key_template.value()); |
| EXPECT_TRUE(new_key_result.ok()) << new_key_result.status(); |
| } |
| } |
| |
| TEST(AeadKeyTemplatesTest, testXChaCha20Poly1305KeyTemplates) { |
| std::string type_url = |
| "type.googleapis.com/google.crypto.tink.XChaCha20Poly1305Key"; |
| |
| // Check that returned template is correct. |
| const KeyTemplate& key_template = AeadKeyTemplates::XChaCha20Poly1305(); |
| EXPECT_EQ(type_url, key_template.type_url()); |
| EXPECT_EQ(OutputPrefixType::TINK, key_template.output_prefix_type()); |
| |
| // Check that reference to the same object is returned. |
| const KeyTemplate& key_template_2 = AeadKeyTemplates::XChaCha20Poly1305(); |
| EXPECT_EQ(&key_template, &key_template_2); |
| |
| // Check that the template works with the key manager. |
| XChaCha20Poly1305KeyManager key_type_manager; |
| auto key_manager = internal::MakeKeyManager<Aead>(&key_type_manager); |
| EXPECT_EQ(key_manager->get_key_type(), key_template.type_url()); |
| auto new_key_result = |
| key_manager->get_key_factory().NewKey(key_template.value()); |
| EXPECT_TRUE(new_key_result.ok()) << new_key_result.status(); |
| } |
| |
| TEST(AeadKeyTemplatesTest, testKmsEnvelopeAead) { |
| std::string type_url = |
| "type.googleapis.com/google.crypto.tink.KmsEnvelopeAeadKey"; |
| std::string kek_uri = "foo/bar"; |
| const KeyTemplate& dek_template = AeadKeyTemplates::Aes128Gcm(); |
| |
| // Check that returned template is correct. |
| const KeyTemplate& key_template = |
| AeadKeyTemplates::KmsEnvelopeAead(kek_uri, dek_template); |
| EXPECT_EQ(type_url, key_template.type_url()); |
| EXPECT_EQ(OutputPrefixType::RAW, key_template.output_prefix_type()); |
| |
| KmsEnvelopeAeadKeyFormat key_format; |
| EXPECT_TRUE(key_format.ParseFromString(key_template.value())); |
| EXPECT_EQ(kek_uri, key_format.kek_uri()); |
| EXPECT_EQ(dek_template.type_url(), key_format.dek_template().type_url()); |
| EXPECT_EQ(dek_template.value(), key_format.dek_template().value()); |
| |
| // Check that the template works with the key manager. |
| KmsEnvelopeAeadKeyManager key_type_manager; |
| auto key_manager = internal::MakeKeyManager<Aead>(&key_type_manager); |
| EXPECT_EQ(key_manager->get_key_type(), key_template.type_url()); |
| auto new_key_result = |
| key_manager->get_key_factory().NewKey(key_template.value()); |
| EXPECT_TRUE(new_key_result.ok()) << new_key_result.status(); |
| } |
| |
| TEST(AeadKeyTemplatesTest, testKmsEnvelopeAeadMultipleKeysSameKek) { |
| // Initialize the registry. |
| ASSERT_TRUE(AeadConfig::Register().ok()); |
| |
| auto kek_uri_result = test::FakeKmsClient::CreateFakeKeyUri(); |
| EXPECT_TRUE(kek_uri_result.ok()) << kek_uri_result.status(); |
| std::string kek_uri = kek_uri_result.value(); |
| auto register_fake_kms_client_status = test::FakeKmsClient::RegisterNewClient( |
| kek_uri, /* credentials_path= */ ""); |
| |
| std::string type_url = |
| "type.googleapis.com/google.crypto.tink.KmsEnvelopeAeadKey"; |
| const KeyTemplate& dek_template = AeadKeyTemplates::Aes128Gcm(); |
| |
| const KeyTemplate& key_template1 = |
| AeadKeyTemplates::KmsEnvelopeAead(kek_uri, dek_template); |
| auto handle_result1 = KeysetHandle::GenerateNew(key_template1); |
| EXPECT_TRUE(handle_result1.ok()); |
| auto handle1 = std::move(handle_result1.value()); |
| auto aead_result1 = handle1->GetPrimitive<Aead>(); |
| EXPECT_TRUE(aead_result1.ok()); |
| auto aead1 = std::move(aead_result1.value()); |
| |
| const KeyTemplate& key_template2 = |
| AeadKeyTemplates::KmsEnvelopeAead(kek_uri, dek_template); |
| auto handle_result2 = KeysetHandle::GenerateNew(key_template2); |
| EXPECT_TRUE(handle_result2.ok()); |
| auto handle2 = std::move(handle_result2.value()); |
| auto aead_result2 = handle2->GetPrimitive<Aead>(); |
| EXPECT_TRUE(aead_result2.ok()); |
| auto aead2 = std::move(aead_result2.value()); |
| |
| EXPECT_THAT(EncryptThenDecrypt(*aead1, *aead2, "message", "aad"), IsOk()); |
| } |
| |
| } // namespace |
| } // namespace tink |
| } // namespace crypto |