| // Copyright 2024 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/experimental/pqcrypto/signature/slh_dsa_proto_serialization.h" |
| |
| #include <cstdint> |
| #include <memory> |
| #include <string> |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| #include "absl/status/status.h" |
| #include "absl/strings/string_view.h" |
| #include "absl/types/optional.h" |
| #define OPENSSL_UNSTABLE_EXPERIMENTAL_SPX |
| #include "openssl/experimental/spx.h" |
| #undef OPENSSL_UNSTABLE_EXPERIMENTAL_SPX |
| #include "tink/experimental/pqcrypto/signature/slh_dsa_parameters.h" |
| #include "tink/experimental/pqcrypto/signature/slh_dsa_private_key.h" |
| #include "tink/experimental/pqcrypto/signature/slh_dsa_public_key.h" |
| #include "tink/insecure_secret_key_access.h" |
| #include "tink/internal/mutable_serialization_registry.h" |
| #include "tink/internal/proto_key_serialization.h" |
| #include "tink/internal/proto_parameters_serialization.h" |
| #include "tink/internal/serialization.h" |
| #include "tink/key.h" |
| #include "tink/parameters.h" |
| #include "tink/partial_key_access.h" |
| #include "tink/restricted_data.h" |
| #include "tink/subtle/random.h" |
| #include "tink/util/statusor.h" |
| #include "tink/util/test_matchers.h" |
| #include "proto/experimental/pqcrypto/slh_dsa.pb.h" |
| #include "proto/tink.pb.h" |
| |
| namespace crypto { |
| namespace tink { |
| namespace { |
| |
| using ::crypto::tink::subtle::Random; |
| using ::crypto::tink::test::IsOk; |
| using ::crypto::tink::test::StatusIs; |
| using ::google::crypto::tink::KeyData; |
| using ::google::crypto::tink::OutputPrefixType; |
| using ::google::crypto::tink::SlhDsaHashType; |
| using ::google::crypto::tink::SlhDsaKeyFormat; |
| using ::google::crypto::tink::SlhDsaParams; |
| using ::google::crypto::tink::SlhDsaSignatureType; |
| using ::testing::Eq; |
| using ::testing::HasSubstr; |
| using ::testing::IsTrue; |
| using ::testing::NotNull; |
| using ::testing::TestWithParam; |
| using ::testing::Values; |
| |
| const absl::string_view kPrivateTypeUrl = |
| "type.googleapis.com/google.crypto.tink.SlhDsaPrivateKey"; |
| const absl::string_view kPublicTypeUrl = |
| "type.googleapis.com/google.crypto.tink.SlhDsaPublicKey"; |
| |
| struct TestCase { |
| SlhDsaParameters::Variant variant; |
| OutputPrefixType output_prefix_type; |
| absl::optional<int> id_requirement; |
| std::string output_prefix; |
| }; |
| |
| class SlhDsaProtoSerializationTest : public TestWithParam<TestCase> { |
| protected: |
| SlhDsaProtoSerializationTest() { |
| internal::MutableSerializationRegistry::GlobalInstance().Reset(); |
| } |
| }; |
| |
| TEST_F(SlhDsaProtoSerializationTest, RegisterTwiceSucceeds) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P( |
| SlhDsaProtoSerializationTestSuite, SlhDsaProtoSerializationTest, |
| Values(TestCase{SlhDsaParameters::Variant::kTink, OutputPrefixType::TINK, |
| 0x02030400, std::string("\x01\x02\x03\x04\x00", 5)}, |
| TestCase{SlhDsaParameters::Variant::kTink, OutputPrefixType::TINK, |
| 0x03050709, std::string("\x01\x03\x05\x07\x09", 5)}, |
| TestCase{SlhDsaParameters::Variant::kNoPrefix, OutputPrefixType::RAW, |
| absl::nullopt, ""})); |
| |
| TEST_P(SlhDsaProtoSerializationTest, |
| ParseSlhDsa128Sha2SmallSignatureParametersWorks) { |
| TestCase test_case = GetParam(); |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| SlhDsaKeyFormat key_format_proto; |
| SlhDsaParams& params = *key_format_proto.mutable_params(); |
| params.set_sig_type(SlhDsaSignatureType::SMALL_SIGNATURE); |
| params.set_hash_type(SlhDsaHashType::SHA2); |
| params.set_key_size(64); |
| |
| util::StatusOr<internal::ProtoParametersSerialization> serialization = |
| internal::ProtoParametersSerialization::Create( |
| kPrivateTypeUrl, test_case.output_prefix_type, |
| key_format_proto.SerializeAsString()); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Parameters>> parameters = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseParameters( |
| *serialization); |
| ASSERT_THAT(parameters, IsOk()); |
| EXPECT_EQ((*parameters)->HasIdRequirement(), |
| test_case.id_requirement.has_value()); |
| |
| const SlhDsaParameters* slh_dsa_parameters = |
| dynamic_cast<const SlhDsaParameters*>(parameters->get()); |
| ASSERT_THAT(slh_dsa_parameters, NotNull()); |
| EXPECT_THAT(slh_dsa_parameters->GetVariant(), Eq(test_case.variant)); |
| EXPECT_THAT(slh_dsa_parameters->GetPrivateKeySizeInBytes(), Eq(64)); |
| EXPECT_THAT(slh_dsa_parameters->GetSignatureType(), |
| Eq(SlhDsaParameters::SignatureType::kSmallSignature)); |
| EXPECT_THAT(slh_dsa_parameters->GetHashType(), |
| Eq(SlhDsaParameters::HashType::kSha2)); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, |
| ParseParametersWithInvalidSerializationFails) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| util::StatusOr<internal::ProtoParametersSerialization> serialization = |
| internal::ProtoParametersSerialization::Create( |
| kPrivateTypeUrl, OutputPrefixType::RAW, "invalid_serialization"); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| EXPECT_THAT(internal::MutableSerializationRegistry::GlobalInstance() |
| .ParseParameters(*serialization) |
| .status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("Failed to parse SlhDsaKeyFormat proto"))); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, ParseParametersWithInvalidVersionFails) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| SlhDsaKeyFormat key_format_proto; |
| key_format_proto.set_version(1); |
| SlhDsaParams& params = *key_format_proto.mutable_params(); |
| params.set_sig_type(SlhDsaSignatureType::SMALL_SIGNATURE); |
| params.set_hash_type(SlhDsaHashType::SHA2); |
| params.set_key_size(64); |
| |
| util::StatusOr<internal::ProtoParametersSerialization> serialization = |
| internal::ProtoParametersSerialization::Create( |
| kPrivateTypeUrl, OutputPrefixType::RAW, |
| key_format_proto.SerializeAsString()); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Parameters>> parameters = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseParameters( |
| *serialization); |
| EXPECT_THAT(parameters.status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("Only version 0 keys are accepted"))); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, |
| ParseParametersKeyFormatWithoutParamsFails) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| SlhDsaKeyFormat key_format_proto; |
| util::StatusOr<internal::ProtoParametersSerialization> serialization = |
| internal::ProtoParametersSerialization::Create( |
| kPrivateTypeUrl, OutputPrefixType::RAW, |
| key_format_proto.SerializeAsString()); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Parameters>> parameters = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseParameters( |
| *serialization); |
| |
| ASSERT_THAT(parameters.status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("SlhDsaKeyFormat proto is missing params"))); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, |
| ParseParametersWithUnkownOutputPrefixFails) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| SlhDsaKeyFormat key_format_proto; |
| SlhDsaParams& params = *key_format_proto.mutable_params(); |
| params.set_sig_type(SlhDsaSignatureType::SMALL_SIGNATURE); |
| params.set_hash_type(SlhDsaHashType::SHA2); |
| params.set_key_size(64); |
| |
| util::StatusOr<internal::ProtoParametersSerialization> serialization = |
| internal::ProtoParametersSerialization::Create( |
| kPrivateTypeUrl, OutputPrefixType::UNKNOWN_PREFIX, |
| key_format_proto.SerializeAsString()); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Parameters>> parameters = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseParameters( |
| *serialization); |
| EXPECT_THAT( |
| parameters.status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("Could not determine SlhDsaParameters::Variant"))); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, ParseParametersWithUnkownSigTypeFails) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| SlhDsaKeyFormat key_format_proto; |
| SlhDsaParams& params = *key_format_proto.mutable_params(); |
| params.set_sig_type(SlhDsaSignatureType::SLH_DSA_SIGNATURE_TYPE_UNSPECIFIED); |
| params.set_hash_type(SlhDsaHashType::SHA2); |
| params.set_key_size(64); |
| |
| util::StatusOr<internal::ProtoParametersSerialization> serialization = |
| internal::ProtoParametersSerialization::Create( |
| kPrivateTypeUrl, OutputPrefixType::RAW, |
| key_format_proto.SerializeAsString()); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Parameters>> parameters = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseParameters( |
| *serialization); |
| EXPECT_THAT( |
| parameters.status(), |
| StatusIs( |
| absl::StatusCode::kInvalidArgument, |
| HasSubstr("Could not determine SlhDsaParameters::SignatureType"))); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, ParseParametersWithUnkownHashTypeFails) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| SlhDsaKeyFormat key_format_proto; |
| SlhDsaParams& params = *key_format_proto.mutable_params(); |
| params.set_sig_type(SlhDsaSignatureType::SMALL_SIGNATURE); |
| params.set_hash_type(SlhDsaHashType::SLH_DSA_HASH_TYPE_UNSPECIFIED); |
| params.set_key_size(64); |
| |
| util::StatusOr<internal::ProtoParametersSerialization> serialization = |
| internal::ProtoParametersSerialization::Create( |
| kPrivateTypeUrl, OutputPrefixType::RAW, |
| key_format_proto.SerializeAsString()); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Parameters>> parameters = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseParameters( |
| *serialization); |
| EXPECT_THAT( |
| parameters.status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("Could not determine SlhDsaParameters::HashType"))); |
| } |
| |
| TEST_P(SlhDsaProtoSerializationTest, |
| SerializeSlhDsa128Sha2SmallSignatureParametersWorks) { |
| TestCase test_case = GetParam(); |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| util::StatusOr<SlhDsaParameters> parameters = SlhDsaParameters::Create( |
| SlhDsaParameters::HashType::kSha2, /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, test_case.variant); |
| ASSERT_THAT(parameters, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Serialization>> serialization = |
| internal::MutableSerializationRegistry::GlobalInstance() |
| .SerializeParameters<internal::ProtoParametersSerialization>( |
| *parameters); |
| ASSERT_THAT(serialization, IsOk()); |
| EXPECT_THAT((*serialization)->ObjectIdentifier(), Eq(kPrivateTypeUrl)); |
| |
| const internal::ProtoParametersSerialization* proto_serialization = |
| dynamic_cast<const internal::ProtoParametersSerialization*>( |
| serialization->get()); |
| ASSERT_THAT(proto_serialization, NotNull()); |
| EXPECT_THAT(proto_serialization->GetKeyTemplate().type_url(), |
| Eq(kPrivateTypeUrl)); |
| EXPECT_THAT(proto_serialization->GetKeyTemplate().output_prefix_type(), |
| Eq(test_case.output_prefix_type)); |
| |
| SlhDsaKeyFormat key_format; |
| ASSERT_THAT( |
| key_format.ParseFromString(proto_serialization->GetKeyTemplate().value()), |
| IsTrue()); |
| ASSERT_TRUE(key_format.has_params()); |
| EXPECT_THAT(key_format.params().hash_type(), Eq(SlhDsaHashType::SHA2)); |
| EXPECT_THAT(key_format.params().sig_type(), |
| Eq(SlhDsaSignatureType::SMALL_SIGNATURE)); |
| EXPECT_THAT(key_format.params().key_size(), Eq(64)); |
| } |
| |
| TEST_P(SlhDsaProtoSerializationTest, ParsePublicKeyWorks) { |
| TestCase test_case = GetParam(); |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| SlhDsaParams params; |
| params.set_sig_type(SlhDsaSignatureType::SMALL_SIGNATURE); |
| params.set_hash_type(SlhDsaHashType::SHA2); |
| params.set_key_size(64); |
| |
| std::string raw_key_bytes = Random::GetRandomBytes(32); |
| google::crypto::tink::SlhDsaPublicKey key_proto; |
| key_proto.set_version(0); |
| key_proto.set_key_value(raw_key_bytes); |
| *key_proto.mutable_params() = params; |
| RestrictedData serialized_key = RestrictedData( |
| key_proto.SerializeAsString(), InsecureSecretKeyAccess::Get()); |
| |
| util::StatusOr<internal::ProtoKeySerialization> serialization = |
| internal::ProtoKeySerialization::Create( |
| kPublicTypeUrl, serialized_key, KeyData::ASYMMETRIC_PUBLIC, |
| test_case.output_prefix_type, test_case.id_requirement); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Key>> key = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseKey( |
| *serialization, /*token=*/absl::nullopt); |
| ASSERT_THAT(key, IsOk()); |
| EXPECT_THAT((*key)->GetIdRequirement(), Eq(test_case.id_requirement)); |
| EXPECT_THAT((*key)->GetParameters().HasIdRequirement(), |
| test_case.id_requirement.has_value()); |
| |
| util::StatusOr<SlhDsaParameters> expected_parameters = |
| SlhDsaParameters::Create( |
| SlhDsaParameters::HashType::kSha2, /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, test_case.variant); |
| ASSERT_THAT(expected_parameters, IsOk()); |
| |
| util::StatusOr<SlhDsaPublicKey> expected_key = |
| SlhDsaPublicKey::Create(*expected_parameters, raw_key_bytes, |
| test_case.id_requirement, GetPartialKeyAccess()); |
| ASSERT_THAT(expected_key, IsOk()); |
| |
| EXPECT_THAT(**key, Eq(*expected_key)); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, |
| ParsePublicKeyWithInvalidSerializationFails) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| RestrictedData serialized_key = |
| RestrictedData("invalid_serialization", InsecureSecretKeyAccess::Get()); |
| |
| util::StatusOr<internal::ProtoKeySerialization> serialization = |
| internal::ProtoKeySerialization::Create(kPublicTypeUrl, serialized_key, |
| KeyData::ASYMMETRIC_PUBLIC, |
| OutputPrefixType::TINK, |
| /*id_requirement=*/0x23456789); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Key>> key = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseKey( |
| *serialization, InsecureSecretKeyAccess::Get()); |
| EXPECT_THAT(key.status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("Failed to parse SlhDsaPublicKey proto"))); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, ParsePublicKeyWithInvalidVersionFails) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| SlhDsaParams params; |
| params.set_sig_type(SlhDsaSignatureType::SMALL_SIGNATURE); |
| params.set_hash_type(SlhDsaHashType::SHA2); |
| params.set_key_size(64); |
| |
| std::string raw_key_bytes = Random::GetRandomBytes(32); |
| google::crypto::tink::SlhDsaPublicKey key_proto; |
| key_proto.set_version(1); |
| key_proto.set_key_value(raw_key_bytes); |
| *key_proto.mutable_params() = params; |
| RestrictedData serialized_key = RestrictedData( |
| key_proto.SerializeAsString(), InsecureSecretKeyAccess::Get()); |
| |
| util::StatusOr<internal::ProtoKeySerialization> serialization = |
| internal::ProtoKeySerialization::Create(kPublicTypeUrl, serialized_key, |
| KeyData::ASYMMETRIC_PUBLIC, |
| OutputPrefixType::TINK, |
| /*id_requirement=*/0x23456789); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Key>> key = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseKey( |
| *serialization, /*token=*/absl::nullopt); |
| EXPECT_THAT(key.status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("Only version 0 keys are accepted"))); |
| } |
| |
| TEST_P(SlhDsaProtoSerializationTest, SerializePublicKeyWorks) { |
| TestCase test_case = GetParam(); |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| util::StatusOr<SlhDsaParameters> parameters = SlhDsaParameters::Create( |
| SlhDsaParameters::HashType::kSha2, /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, test_case.variant); |
| ASSERT_THAT(parameters, IsOk()); |
| |
| std::string raw_key_bytes = Random::GetRandomBytes(32); |
| util::StatusOr<SlhDsaPublicKey> key = |
| SlhDsaPublicKey::Create(*parameters, raw_key_bytes, |
| test_case.id_requirement, GetPartialKeyAccess()); |
| ASSERT_THAT(key, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Serialization>> serialization = |
| internal::MutableSerializationRegistry::GlobalInstance() |
| .SerializeKey<internal::ProtoKeySerialization>( |
| *key, /*token=*/absl::nullopt); |
| ASSERT_THAT(serialization, IsOk()); |
| EXPECT_THAT((*serialization)->ObjectIdentifier(), Eq(kPublicTypeUrl)); |
| |
| const internal::ProtoKeySerialization* proto_serialization = |
| dynamic_cast<const internal::ProtoKeySerialization*>( |
| serialization->get()); |
| ASSERT_THAT(proto_serialization, NotNull()); |
| EXPECT_THAT(proto_serialization->TypeUrl(), Eq(kPublicTypeUrl)); |
| EXPECT_THAT(proto_serialization->KeyMaterialType(), |
| Eq(KeyData::ASYMMETRIC_PUBLIC)); |
| EXPECT_THAT(proto_serialization->GetOutputPrefixType(), |
| Eq(test_case.output_prefix_type)); |
| EXPECT_THAT(proto_serialization->IdRequirement(), |
| Eq(test_case.id_requirement)); |
| |
| google::crypto::tink::SlhDsaPublicKey proto_key; |
| ASSERT_THAT(proto_key.ParseFromString( |
| proto_serialization->SerializedKeyProto().GetSecret( |
| InsecureSecretKeyAccess::Get())), |
| IsTrue()); |
| EXPECT_THAT(proto_key.version(), Eq(0)); |
| EXPECT_THAT(proto_key.key_value(), Eq(raw_key_bytes)); |
| EXPECT_THAT(proto_key.has_params(), IsTrue()); |
| EXPECT_THAT(proto_key.params().key_size(), Eq(64)); |
| EXPECT_THAT(proto_key.params().hash_type(), Eq(SlhDsaHashType::SHA2)); |
| EXPECT_THAT(proto_key.params().sig_type(), |
| Eq(SlhDsaSignatureType::SMALL_SIGNATURE)); |
| } |
| |
| TEST_P(SlhDsaProtoSerializationTest, ParsePrivateKeyWorks) { |
| TestCase test_case = GetParam(); |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| std::string public_key_bytes; |
| public_key_bytes.resize(SPX_PUBLIC_KEY_BYTES); |
| std::string private_key_bytes; |
| private_key_bytes.resize(SPX_SECRET_KEY_BYTES); |
| |
| SPX_generate_key(reinterpret_cast<uint8_t*>(public_key_bytes.data()), |
| reinterpret_cast<uint8_t*>(private_key_bytes.data())); |
| |
| SlhDsaParams params; |
| params.set_sig_type(SlhDsaSignatureType::SMALL_SIGNATURE); |
| params.set_hash_type(SlhDsaHashType::SHA2); |
| params.set_key_size(64); |
| |
| google::crypto::tink::SlhDsaPublicKey public_key_proto; |
| public_key_proto.set_version(0); |
| public_key_proto.set_key_value(public_key_bytes); |
| *public_key_proto.mutable_params() = params; |
| |
| google::crypto::tink::SlhDsaPrivateKey private_key_proto; |
| private_key_proto.set_version(0); |
| *private_key_proto.mutable_public_key() = public_key_proto; |
| private_key_proto.set_key_value(private_key_bytes); |
| |
| RestrictedData serialized_key = RestrictedData( |
| private_key_proto.SerializeAsString(), InsecureSecretKeyAccess::Get()); |
| |
| util::StatusOr<internal::ProtoKeySerialization> serialization = |
| internal::ProtoKeySerialization::Create( |
| kPrivateTypeUrl, serialized_key, KeyData::ASYMMETRIC_PRIVATE, |
| test_case.output_prefix_type, test_case.id_requirement); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Key>> private_key = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseKey( |
| *serialization, InsecureSecretKeyAccess::Get()); |
| ASSERT_THAT(private_key, IsOk()); |
| |
| EXPECT_THAT((*private_key)->GetIdRequirement(), Eq(test_case.id_requirement)); |
| EXPECT_THAT((*private_key)->GetParameters().HasIdRequirement(), |
| test_case.id_requirement.has_value()); |
| |
| util::StatusOr<SlhDsaParameters> expected_parameters = |
| SlhDsaParameters::Create( |
| SlhDsaParameters::HashType::kSha2, /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, test_case.variant); |
| ASSERT_THAT(expected_parameters, IsOk()); |
| |
| util::StatusOr<SlhDsaPublicKey> expected_public_key = |
| SlhDsaPublicKey::Create(*expected_parameters, public_key_bytes, |
| test_case.id_requirement, GetPartialKeyAccess()); |
| ASSERT_THAT(expected_public_key, IsOk()); |
| |
| util::StatusOr<SlhDsaPrivateKey> expected_private_key = |
| SlhDsaPrivateKey::Create( |
| *expected_public_key, |
| RestrictedData(private_key_bytes, InsecureSecretKeyAccess::Get()), |
| GetPartialKeyAccess()); |
| ASSERT_THAT(expected_private_key, IsOk()); |
| |
| EXPECT_THAT(**private_key, Eq(*expected_private_key)); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, ParsePrivateKeyWithInvalidSerialization) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| RestrictedData serialized_key = |
| RestrictedData("invalid_serialization", InsecureSecretKeyAccess::Get()); |
| |
| util::StatusOr<internal::ProtoKeySerialization> serialization = |
| internal::ProtoKeySerialization::Create(kPrivateTypeUrl, serialized_key, |
| KeyData::ASYMMETRIC_PRIVATE, |
| OutputPrefixType::TINK, |
| /*id_requirement=*/0x23456789); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Key>> key = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseKey( |
| *serialization, InsecureSecretKeyAccess::Get()); |
| EXPECT_THAT(key.status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("Failed to parse SlhDsaPrivateKey proto"))); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, ParsePrivateKeyWithInvalidVersion) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| std::string public_key_bytes; |
| public_key_bytes.resize(SPX_PUBLIC_KEY_BYTES); |
| std::string private_key_bytes; |
| private_key_bytes.resize(SPX_SECRET_KEY_BYTES); |
| |
| SPX_generate_key(reinterpret_cast<uint8_t*>(public_key_bytes.data()), |
| reinterpret_cast<uint8_t*>(private_key_bytes.data())); |
| |
| SlhDsaParams params; |
| params.set_sig_type(SlhDsaSignatureType::SMALL_SIGNATURE); |
| params.set_hash_type(SlhDsaHashType::SHA2); |
| params.set_key_size(64); |
| |
| google::crypto::tink::SlhDsaPublicKey public_key_proto; |
| public_key_proto.set_version(0); |
| public_key_proto.set_key_value(public_key_bytes); |
| *public_key_proto.mutable_params() = params; |
| |
| google::crypto::tink::SlhDsaPrivateKey private_key_proto; |
| private_key_proto.set_version(1); |
| *private_key_proto.mutable_public_key() = public_key_proto; |
| private_key_proto.set_key_value(private_key_bytes); |
| |
| RestrictedData serialized_key = RestrictedData( |
| private_key_proto.SerializeAsString(), InsecureSecretKeyAccess::Get()); |
| |
| util::StatusOr<internal::ProtoKeySerialization> serialization = |
| internal::ProtoKeySerialization::Create(kPrivateTypeUrl, serialized_key, |
| KeyData::ASYMMETRIC_PRIVATE, |
| OutputPrefixType::TINK, |
| /*id_requirement=*/0x23456789); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Key>> key = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseKey( |
| *serialization, InsecureSecretKeyAccess::Get()); |
| EXPECT_THAT(key.status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("Only version 0 keys are accepted"))); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, ParsePrivateKeyNoSecretKeyAccess) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| std::string public_key_bytes; |
| public_key_bytes.resize(SPX_PUBLIC_KEY_BYTES); |
| std::string private_key_bytes; |
| private_key_bytes.resize(SPX_SECRET_KEY_BYTES); |
| |
| SPX_generate_key(reinterpret_cast<uint8_t*>(public_key_bytes.data()), |
| reinterpret_cast<uint8_t*>(private_key_bytes.data())); |
| |
| SlhDsaParams params; |
| params.set_sig_type(SlhDsaSignatureType::SMALL_SIGNATURE); |
| params.set_hash_type(SlhDsaHashType::SHA2); |
| params.set_key_size(64); |
| |
| google::crypto::tink::SlhDsaPublicKey public_key_proto; |
| public_key_proto.set_version(0); |
| public_key_proto.set_key_value(public_key_bytes); |
| *public_key_proto.mutable_params() = params; |
| |
| google::crypto::tink::SlhDsaPrivateKey private_key_proto; |
| private_key_proto.set_version(0); |
| *private_key_proto.mutable_public_key() = public_key_proto; |
| private_key_proto.set_key_value(private_key_bytes); |
| |
| RestrictedData serialized_key = RestrictedData( |
| private_key_proto.SerializeAsString(), InsecureSecretKeyAccess::Get()); |
| |
| util::StatusOr<internal::ProtoKeySerialization> serialization = |
| internal::ProtoKeySerialization::Create(kPrivateTypeUrl, serialized_key, |
| KeyData::ASYMMETRIC_PRIVATE, |
| OutputPrefixType::TINK, |
| /*id_requirement=*/0x23456789); |
| ASSERT_THAT(serialization, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Key>> key = |
| internal::MutableSerializationRegistry::GlobalInstance().ParseKey( |
| *serialization, /*token=*/absl::nullopt); |
| EXPECT_THAT(key.status(), StatusIs(absl::StatusCode::kPermissionDenied)); |
| } |
| |
| TEST_P(SlhDsaProtoSerializationTest, SerializePrivateKey) { |
| TestCase test_case = GetParam(); |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| std::string public_key_bytes; |
| public_key_bytes.resize(SPX_PUBLIC_KEY_BYTES); |
| std::string private_key_bytes; |
| private_key_bytes.resize(SPX_SECRET_KEY_BYTES); |
| |
| SPX_generate_key(reinterpret_cast<uint8_t*>(public_key_bytes.data()), |
| reinterpret_cast<uint8_t*>(private_key_bytes.data())); |
| |
| util::StatusOr<SlhDsaParameters> parameters = SlhDsaParameters::Create( |
| SlhDsaParameters::HashType::kSha2, /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, test_case.variant); |
| ASSERT_THAT(parameters, IsOk()); |
| |
| util::StatusOr<SlhDsaPublicKey> public_key = |
| SlhDsaPublicKey::Create(*parameters, public_key_bytes, |
| test_case.id_requirement, GetPartialKeyAccess()); |
| ASSERT_THAT(public_key, IsOk()); |
| |
| util::StatusOr<SlhDsaPrivateKey> private_key = SlhDsaPrivateKey::Create( |
| *public_key, |
| RestrictedData(private_key_bytes, InsecureSecretKeyAccess::Get()), |
| GetPartialKeyAccess()); |
| ASSERT_THAT(private_key, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Serialization>> serialization = |
| internal::MutableSerializationRegistry::GlobalInstance() |
| .SerializeKey<internal::ProtoKeySerialization>( |
| *private_key, InsecureSecretKeyAccess::Get()); |
| ASSERT_THAT(serialization, IsOk()); |
| EXPECT_THAT((*serialization)->ObjectIdentifier(), Eq(kPrivateTypeUrl)); |
| |
| const internal::ProtoKeySerialization* proto_serialization = |
| dynamic_cast<const internal::ProtoKeySerialization*>( |
| serialization->get()); |
| ASSERT_THAT(proto_serialization, NotNull()); |
| EXPECT_THAT(proto_serialization->TypeUrl(), Eq(kPrivateTypeUrl)); |
| EXPECT_THAT(proto_serialization->KeyMaterialType(), |
| Eq(KeyData::ASYMMETRIC_PRIVATE)); |
| EXPECT_THAT(proto_serialization->GetOutputPrefixType(), |
| Eq(test_case.output_prefix_type)); |
| EXPECT_THAT(proto_serialization->IdRequirement(), |
| Eq(test_case.id_requirement)); |
| |
| google::crypto::tink::SlhDsaPrivateKey proto_key; |
| ASSERT_THAT(proto_key.ParseFromString( |
| proto_serialization->SerializedKeyProto().GetSecret( |
| InsecureSecretKeyAccess::Get())), |
| IsTrue()); |
| EXPECT_THAT(proto_key.version(), Eq(0)); |
| EXPECT_THAT(proto_key.key_value(), Eq(private_key_bytes)); |
| EXPECT_THAT(proto_key.has_public_key(), IsTrue()); |
| EXPECT_THAT(proto_key.public_key().version(), Eq(0)); |
| EXPECT_THAT(proto_key.public_key().key_value(), Eq(public_key_bytes)); |
| EXPECT_THAT(proto_key.public_key().has_params(), IsTrue()); |
| EXPECT_THAT(proto_key.public_key().params().key_size(), Eq(64)); |
| EXPECT_THAT(proto_key.public_key().params().hash_type(), |
| Eq(SlhDsaHashType::SHA2)); |
| EXPECT_THAT(proto_key.public_key().params().sig_type(), |
| Eq(SlhDsaSignatureType::SMALL_SIGNATURE)); |
| } |
| |
| TEST_F(SlhDsaProtoSerializationTest, SerializePrivateKeyNoSecretKeyAccess) { |
| ASSERT_THAT(RegisterSlhDsaProtoSerialization(), IsOk()); |
| |
| std::string public_key_bytes; |
| public_key_bytes.resize(SPX_PUBLIC_KEY_BYTES); |
| std::string private_key_bytes; |
| private_key_bytes.resize(SPX_SECRET_KEY_BYTES); |
| |
| SPX_generate_key(reinterpret_cast<uint8_t*>(public_key_bytes.data()), |
| reinterpret_cast<uint8_t*>(private_key_bytes.data())); |
| |
| util::StatusOr<SlhDsaParameters> parameters = SlhDsaParameters::Create( |
| SlhDsaParameters::HashType::kSha2, /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, |
| SlhDsaParameters::Variant::kTink); |
| ASSERT_THAT(parameters, IsOk()); |
| |
| util::StatusOr<SlhDsaPublicKey> public_key = |
| SlhDsaPublicKey::Create(*parameters, public_key_bytes, |
| /*id_requirement=*/123, GetPartialKeyAccess()); |
| ASSERT_THAT(public_key, IsOk()); |
| |
| util::StatusOr<SlhDsaPrivateKey> private_key = SlhDsaPrivateKey::Create( |
| *public_key, |
| RestrictedData(private_key_bytes, InsecureSecretKeyAccess::Get()), |
| GetPartialKeyAccess()); |
| ASSERT_THAT(private_key, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<Serialization>> serialization = |
| internal::MutableSerializationRegistry::GlobalInstance() |
| .SerializeKey<internal::ProtoKeySerialization>( |
| *private_key, /*token=*/absl::nullopt); |
| ASSERT_THAT(serialization.status(), |
| StatusIs(absl::StatusCode::kPermissionDenied, |
| HasSubstr("SecretKeyAccess is required"))); |
| } |
| |
| } // namespace |
| } // namespace tink |
| } // namespace crypto |
