| // 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_parameters.h" |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| #include "absl/status/status.h" |
| #include "tink/util/statusor.h" |
| #include "tink/util/test_matchers.h" |
| |
| namespace crypto { |
| namespace tink { |
| namespace { |
| |
| using ::crypto::tink::test::IsOk; |
| using ::crypto::tink::test::StatusIs; |
| using ::testing::Eq; |
| using ::testing::IsTrue; |
| using ::testing::TestWithParam; |
| using ::testing::Values; |
| |
| struct VariantTestCase { |
| SlhDsaParameters::Variant variant; |
| bool has_id_requirement; |
| }; |
| |
| using SlhDsaParametersTest = TestWithParam<VariantTestCase>; |
| |
| INSTANTIATE_TEST_SUITE_P( |
| SlhDsaParametersTestSuite, SlhDsaParametersTest, |
| Values(VariantTestCase{SlhDsaParameters::Variant::kTink, |
| /*has_id_requirement=*/true}, |
| VariantTestCase{SlhDsaParameters::Variant::kNoPrefix, |
| /*has_id_requirement=*/false})); |
| |
| TEST_P(SlhDsaParametersTest, CreateSlhDsa128Sha2SmallSignatureWorks) { |
| VariantTestCase test_case = GetParam(); |
| |
| 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()); |
| |
| EXPECT_THAT(parameters->GetHashType(), Eq(SlhDsaParameters::HashType::kSha2)); |
| EXPECT_THAT(parameters->GetPrivateKeySizeInBytes(), Eq(64)); |
| EXPECT_THAT(parameters->GetSignatureType(), |
| Eq(SlhDsaParameters::SignatureType::kSmallSignature)); |
| EXPECT_THAT(parameters->GetVariant(), Eq(test_case.variant)); |
| EXPECT_THAT(parameters->HasIdRequirement(), Eq(test_case.has_id_requirement)); |
| } |
| |
| TEST(SlhDsaParametersTest, CreateWithInvalidVariantFails) { |
| EXPECT_THAT( |
| SlhDsaParameters::Create( |
| SlhDsaParameters::HashType::kSha2, /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, |
| SlhDsaParameters::Variant:: |
| kDoNotUseInsteadUseDefaultWhenWritingSwitchStatements) |
| .status(), |
| StatusIs(absl::StatusCode::kInvalidArgument)); |
| } |
| |
| TEST(SlhDsaParametersTest, CreateWithInvalidHashTypeFails) { |
| EXPECT_THAT(SlhDsaParameters::Create( |
| SlhDsaParameters::HashType:: |
| kDoNotUseInsteadUseDefaultWhenWritingSwitchStatements, |
| /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, |
| SlhDsaParameters::Variant::kTink) |
| .status(), |
| StatusIs(absl::StatusCode::kInvalidArgument)); |
| } |
| |
| TEST(SlhDsaParametersTest, CreateWithUnsupportedHashTypeFails) { |
| EXPECT_THAT( |
| SlhDsaParameters::Create(SlhDsaParameters::HashType::kShake, |
| /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, |
| SlhDsaParameters::Variant::kTink) |
| .status(), |
| StatusIs(absl::StatusCode::kInvalidArgument)); |
| } |
| |
| TEST(SlhDsaParametersTest, CreateWithInvalidSignatureTypeFails) { |
| EXPECT_THAT(SlhDsaParameters::Create( |
| SlhDsaParameters::HashType::kSha2, |
| /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType:: |
| kDoNotUseInsteadUseDefaultWhenWritingSwitchStatements, |
| SlhDsaParameters::Variant::kTink) |
| .status(), |
| StatusIs(absl::StatusCode::kInvalidArgument)); |
| } |
| |
| TEST(SlhDsaParametersTest, CreateWithUnsupportedSignatureTypeFails) { |
| EXPECT_THAT( |
| SlhDsaParameters::Create(SlhDsaParameters::HashType::kSha2, |
| /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kFastSigning, |
| SlhDsaParameters::Variant::kTink) |
| .status(), |
| StatusIs(absl::StatusCode::kInvalidArgument)); |
| } |
| |
| TEST(SlhDsaParametersTest, CreateWithInvalidKeySizeFails) { |
| EXPECT_THAT( |
| SlhDsaParameters::Create(SlhDsaParameters::HashType::kSha2, |
| /*private_key_size_in_bytes=*/31, |
| SlhDsaParameters::SignatureType::kSmallSignature, |
| SlhDsaParameters::Variant::kTink) |
| .status(), |
| StatusIs(absl::StatusCode::kInvalidArgument)); |
| } |
| |
| TEST(SlhDsaParametersTest, CreateWithUnsupportedKeySizeFails) { |
| EXPECT_THAT( |
| SlhDsaParameters::Create(SlhDsaParameters::HashType::kSha2, |
| /*private_key_size_in_bytes=*/128, |
| SlhDsaParameters::SignatureType::kSmallSignature, |
| SlhDsaParameters::Variant::kNoPrefix) |
| .status(), |
| StatusIs(absl::StatusCode::kInvalidArgument)); |
| } |
| |
| TEST(SlhDsaParametersTest, CopyConstructor) { |
| 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()); |
| |
| SlhDsaParameters copy(*parameters); |
| |
| EXPECT_THAT(copy.GetHashType(), Eq(SlhDsaParameters::HashType::kSha2)); |
| EXPECT_THAT(copy.GetPrivateKeySizeInBytes(), Eq(64)); |
| EXPECT_THAT(copy.GetSignatureType(), |
| Eq(SlhDsaParameters::SignatureType::kSmallSignature)); |
| EXPECT_THAT(copy.GetVariant(), Eq(SlhDsaParameters::Variant::kTink)); |
| EXPECT_THAT(copy.HasIdRequirement(), IsTrue()); |
| } |
| |
| TEST(SlhDsaParametersTest, CopyAssignment) { |
| 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()); |
| |
| SlhDsaParameters copy = *parameters; |
| EXPECT_THAT(copy.GetHashType(), Eq(SlhDsaParameters::HashType::kSha2)); |
| EXPECT_THAT(copy.GetPrivateKeySizeInBytes(), Eq(64)); |
| EXPECT_THAT(copy.GetSignatureType(), |
| Eq(SlhDsaParameters::SignatureType::kSmallSignature)); |
| EXPECT_THAT(copy.GetVariant(), Eq(SlhDsaParameters::Variant::kTink)); |
| EXPECT_THAT(copy.HasIdRequirement(), IsTrue()); |
| } |
| |
| TEST_P(SlhDsaParametersTest, ParametersEquals) { |
| VariantTestCase test_case = GetParam(); |
| |
| 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<SlhDsaParameters> other_parameters = SlhDsaParameters::Create( |
| SlhDsaParameters::HashType::kSha2, /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, test_case.variant); |
| ASSERT_THAT(other_parameters, IsOk()); |
| |
| EXPECT_TRUE(*parameters == *other_parameters); |
| EXPECT_TRUE(*other_parameters == *parameters); |
| EXPECT_FALSE(*parameters != *other_parameters); |
| EXPECT_FALSE(*other_parameters != *parameters); |
| } |
| |
| TEST(SlhDsaParametersTest, DifferentVariantNotEqual) { |
| util::StatusOr<SlhDsaParameters> parameters = SlhDsaParameters::Create( |
| SlhDsaParameters::HashType::kSha2, /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, |
| SlhDsaParameters::Variant::kNoPrefix); |
| |
| util::StatusOr<SlhDsaParameters> other_parameters = |
| SlhDsaParameters::Create(SlhDsaParameters::HashType::kSha2, |
| /*private_key_size_in_bytes=*/64, |
| SlhDsaParameters::SignatureType::kSmallSignature, |
| SlhDsaParameters::Variant::kTink); |
| |
| EXPECT_TRUE(*parameters != *other_parameters); |
| EXPECT_FALSE(*parameters == *other_parameters); |
| } |
| |
| } // namespace |
| } // namespace tink |
| } // namespace crypto |