| // Copyright 2017 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/hybrid/ecies_aead_hkdf_private_key_manager.h" |
| |
| #include "gtest/gtest.h" |
| #include "tink/aead/aead_key_templates.h" |
| #include "tink/aead/aes_ctr_hmac_aead_key_manager.h" |
| #include "tink/aead/aes_gcm_key_manager.h" |
| #include "tink/hybrid/ecies_aead_hkdf_public_key_manager.h" |
| #include "tink/hybrid/hybrid_key_templates.h" |
| #include "tink/hybrid_decrypt.h" |
| #include "tink/registry.h" |
| #include "tink/subtle/hybrid_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/aes_eax.pb.h" |
| #include "proto/common.pb.h" |
| #include "proto/ecies_aead_hkdf.pb.h" |
| #include "proto/tink.pb.h" |
| |
| namespace crypto { |
| namespace tink { |
| |
| using ::crypto::tink::test::IsOk; |
| using ::crypto::tink::test::StatusIs; |
| using ::google::crypto::tink::EciesAeadHkdfKeyFormat; |
| using ::google::crypto::tink::EciesAeadHkdfPrivateKey; |
| using ::google::crypto::tink::EciesAeadHkdfPublicKey; |
| using ::google::crypto::tink::EcPointFormat; |
| using ::google::crypto::tink::EllipticCurveType; |
| using ::google::crypto::tink::HashType; |
| using ::google::crypto::tink::KeyData; |
| using ::testing::Eq; |
| using ::testing::IsEmpty; |
| using ::testing::Not; |
| |
| namespace { |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, Basics) { |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().get_version(), Eq(0)); |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().key_material_type(), |
| Eq(KeyData::ASYMMETRIC_PRIVATE)); |
| EXPECT_THAT( |
| EciesAeadHkdfPrivateKeyManager().get_key_type(), |
| Eq("type.googleapis.com/google.crypto.tink.EciesAeadHkdfPrivateKey")); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateEmptyKey) { |
| EXPECT_THAT( |
| EciesAeadHkdfPrivateKeyManager().ValidateKey(EciesAeadHkdfPrivateKey()), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| EciesAeadHkdfKeyFormat CreateValidKeyFormat() { |
| EciesAeadHkdfKeyFormat key_format; |
| key_format.mutable_params()->set_ec_point_format(EcPointFormat::UNCOMPRESSED); |
| auto dem_params = key_format.mutable_params()->mutable_dem_params(); |
| *(dem_params->mutable_aead_dem()) = AeadKeyTemplates::Aes128Gcm(); |
| auto kem_params = key_format.mutable_params()->mutable_kem_params(); |
| kem_params->set_curve_type(EllipticCurveType::NIST_P256); |
| kem_params->set_hkdf_hash_type(HashType::SHA256); |
| kem_params->set_hkdf_salt(""); |
| return key_format; |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyFormat) { |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKeyFormat( |
| CreateValidKeyFormat()), |
| IsOk()); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyFormatNoPoint) { |
| EciesAeadHkdfKeyFormat key_format = CreateValidKeyFormat(); |
| key_format.mutable_params()->set_ec_point_format( |
| EcPointFormat::UNKNOWN_FORMAT); |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKeyFormat(key_format), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyFormatNoDem) { |
| EciesAeadHkdfKeyFormat key_format = CreateValidKeyFormat(); |
| key_format.mutable_params()->mutable_dem_params()->clear_aead_dem(); |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKeyFormat(key_format), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyFormatNoKemCurve) { |
| EciesAeadHkdfKeyFormat key_format = CreateValidKeyFormat(); |
| key_format.mutable_params()->mutable_kem_params()->set_curve_type( |
| EllipticCurveType::UNKNOWN_CURVE); |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKeyFormat(key_format), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyFormatNoKemHash) { |
| EciesAeadHkdfKeyFormat key_format = CreateValidKeyFormat(); |
| key_format.mutable_params()->mutable_kem_params()->set_hkdf_hash_type( |
| HashType::UNKNOWN_HASH); |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKeyFormat(key_format), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, CreateKey) { |
| EciesAeadHkdfKeyFormat key_format = CreateValidKeyFormat(); |
| ASSERT_THAT(EciesAeadHkdfPrivateKeyManager().CreateKey(key_format).status(), |
| IsOk()); |
| EciesAeadHkdfPrivateKey key = |
| EciesAeadHkdfPrivateKeyManager().CreateKey(key_format).ValueOrDie(); |
| EXPECT_THAT(key.public_key().params().kem_params().curve_type(), |
| Eq(key_format.params().kem_params().curve_type())); |
| EXPECT_THAT(key.public_key().params().kem_params().hkdf_hash_type(), |
| Eq(key_format.params().kem_params().hkdf_hash_type())); |
| EXPECT_THAT(key.public_key().params().dem_params().aead_dem().type_url(), |
| Eq(key_format.params().dem_params().aead_dem().type_url())); |
| EXPECT_THAT(key.public_key().params().dem_params().aead_dem().value(), |
| Eq(key_format.params().dem_params().aead_dem().value())); |
| EXPECT_THAT( |
| key.public_key().params().dem_params().aead_dem().output_prefix_type(), |
| Eq(key_format.params().dem_params().aead_dem().output_prefix_type())); |
| |
| EXPECT_THAT(key.public_key().x(), Not(IsEmpty())); |
| EXPECT_THAT(key.public_key().y(), Not(IsEmpty())); |
| EXPECT_THAT(key.key_value(), Not(IsEmpty())); |
| } |
| |
| EciesAeadHkdfPrivateKey CreateValidKey() { |
| return EciesAeadHkdfPrivateKeyManager() |
| .CreateKey(CreateValidKeyFormat()) |
| .ValueOrDie(); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyEmpty) { |
| EXPECT_THAT( |
| EciesAeadHkdfPrivateKeyManager().ValidateKey(EciesAeadHkdfPrivateKey()), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKey) { |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKey(CreateValidKey()), |
| IsOk()); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyWrongVersion) { |
| EciesAeadHkdfPrivateKey key = CreateValidKey(); |
| key.set_version(1); |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKey(key), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyNoPoint) { |
| EciesAeadHkdfPrivateKey key = CreateValidKey(); |
| key.mutable_public_key()->mutable_params()->set_ec_point_format( |
| EcPointFormat::UNKNOWN_FORMAT); |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKey(key), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyNoDem) { |
| EciesAeadHkdfPrivateKey key = CreateValidKey(); |
| key.mutable_public_key() |
| ->mutable_params() |
| ->mutable_dem_params() |
| ->clear_aead_dem(); |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKey(key), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyNoKemCurve) { |
| EciesAeadHkdfPrivateKey key = CreateValidKey(); |
| key.mutable_public_key() |
| ->mutable_params() |
| ->mutable_kem_params() |
| ->set_curve_type(EllipticCurveType::UNKNOWN_CURVE); |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKey(key), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, ValidateKeyNoKemHash) { |
| EciesAeadHkdfPrivateKey key = CreateValidKey(); |
| key.mutable_public_key() |
| ->mutable_params() |
| ->mutable_kem_params() |
| ->set_hkdf_hash_type(HashType::UNKNOWN_HASH); |
| EXPECT_THAT(EciesAeadHkdfPrivateKeyManager().ValidateKey(key), |
| StatusIs(util::error::INVALID_ARGUMENT)); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, GetPublicKey) { |
| EciesAeadHkdfPrivateKey key = CreateValidKey(); |
| ASSERT_THAT(EciesAeadHkdfPrivateKeyManager().GetPublicKey(key).status(), |
| IsOk()); |
| EciesAeadHkdfPublicKey public_key = |
| EciesAeadHkdfPrivateKeyManager().GetPublicKey(key).ValueOrDie(); |
| EXPECT_THAT(public_key.params().kem_params().curve_type(), |
| Eq(key.public_key().params().kem_params().curve_type())); |
| EXPECT_THAT(public_key.params().kem_params().hkdf_hash_type(), |
| Eq(key.public_key().params().kem_params().hkdf_hash_type())); |
| EXPECT_THAT(public_key.params().dem_params().aead_dem().type_url(), |
| Eq(key.public_key().params().dem_params().aead_dem().type_url())); |
| EXPECT_THAT(public_key.params().dem_params().aead_dem().value(), |
| Eq(key.public_key().params().dem_params().aead_dem().value())); |
| EXPECT_THAT(public_key.params().dem_params().aead_dem().output_prefix_type(), |
| Eq(key.public_key() |
| .params() |
| .dem_params() |
| .aead_dem() |
| .output_prefix_type())); |
| |
| EXPECT_THAT(public_key.x(), Not(IsEmpty())); |
| EXPECT_THAT(public_key.y(), Not(IsEmpty())); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, Create) { |
| ASSERT_THAT(Registry::RegisterKeyTypeManager( |
| absl::make_unique<AesGcmKeyManager>(), true), IsOk()); |
| |
| EciesAeadHkdfPrivateKey private_key = CreateValidKey(); |
| EciesAeadHkdfPublicKey public_key = |
| EciesAeadHkdfPrivateKeyManager().GetPublicKey(private_key).ValueOrDie(); |
| |
| auto decrypt_or = |
| EciesAeadHkdfPrivateKeyManager().GetPrimitive<HybridDecrypt>(private_key); |
| ASSERT_THAT(decrypt_or.status(), IsOk()); |
| auto encrypt_or = EciesAeadHkdfHybridEncrypt::New(public_key); |
| ASSERT_THAT(encrypt_or.status(), IsOk()); |
| |
| ASSERT_THAT(HybridEncryptThenDecrypt(encrypt_or.ValueOrDie().get(), |
| decrypt_or.ValueOrDie().get(), |
| "some text", "some aad"), |
| IsOk()); |
| } |
| |
| TEST(EciesAeadHkdfPrivateKeyManagerTest, CreateDifferentKey) { |
| ASSERT_THAT(Registry::RegisterKeyTypeManager( |
| absl::make_unique<AesGcmKeyManager>(), true), IsOk()); |
| |
| EciesAeadHkdfPrivateKey private_key = CreateValidKey(); |
| // Note: we create a new private key in the next line. |
| EciesAeadHkdfPublicKey public_key = EciesAeadHkdfPrivateKeyManager() |
| .GetPublicKey(CreateValidKey()) |
| .ValueOrDie(); |
| |
| auto decrypt_or = |
| EciesAeadHkdfPrivateKeyManager().GetPrimitive<HybridDecrypt>(private_key); |
| ASSERT_THAT(decrypt_or.status(), IsOk()); |
| auto encrypt_or = EciesAeadHkdfHybridEncrypt::New(public_key); |
| ASSERT_THAT(encrypt_or.status(), IsOk()); |
| |
| ASSERT_THAT(HybridEncryptThenDecrypt(encrypt_or.ValueOrDie().get(), |
| decrypt_or.ValueOrDie().get(), |
| "some text", "some aad"), |
| Not(IsOk())); |
| } |
| |
| } // namespace |
| } // namespace tink |
| } // namespace crypto |