| // Copyright 2021 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/dilithium_sign_key_manager.h" |
| |
| #include <string> |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| #include "absl/container/flat_hash_set.h" |
| #include "absl/strings/str_cat.h" |
| #include "tink/experimental/pqcrypto/signature/subtle/dilithium_avx2_sign.h" |
| #include "tink/experimental/pqcrypto/signature/subtle/dilithium_avx2_verify.h" |
| #include "tink/experimental/pqcrypto/signature/subtle/dilithium_key.h" |
| #include "tink/experimental/pqcrypto/signature/util/enums.h" |
| #include "tink/public_key_verify.h" |
| #include "tink/util/secret_data.h" |
| #include "tink/util/status.h" |
| #include "tink/util/statusor.h" |
| #include "tink/util/test_matchers.h" |
| |
| extern "C" { |
| #include "third_party/pqclean/crypto_sign/dilithium2/api.h" |
| #include "third_party/pqclean/crypto_sign/dilithium2aes/api.h" |
| #include "third_party/pqclean/crypto_sign/dilithium3/api.h" |
| #include "third_party/pqclean/crypto_sign/dilithium3aes/api.h" |
| #include "third_party/pqclean/crypto_sign/dilithium5/api.h" |
| #include "third_party/pqclean/crypto_sign/dilithium5aes/api.h" |
| } |
| |
| namespace crypto { |
| namespace tink { |
| namespace { |
| |
| using ::crypto::tink::subtle::DilithiumPublicKeyPqclean; |
| using ::crypto::tink::test::IsOk; |
| using ::crypto::tink::util::EnumsPqcrypto; |
| using ::crypto::tink::util::StatusOr; |
| using ::google::crypto::tink::DilithiumKeyFormat; |
| using ::google::crypto::tink::DilithiumParams; |
| using ::google::crypto::tink::DilithiumPrivateKey; |
| using ::google::crypto::tink::DilithiumPublicKey; |
| using ::google::crypto::tink::DilithiumSeedExpansion; |
| using ::google::crypto::tink::KeyData; |
| using ::testing::Eq; |
| using ::testing::Not; |
| using ::testing::SizeIs; |
| |
| struct DilithiumTestCase { |
| std::string test_name; |
| int32_t private_key_size; |
| int32_t public_key_size; |
| DilithiumSeedExpansion seed_expansion; |
| }; |
| |
| using DilithiumSignKeyManagerTest = testing::TestWithParam<DilithiumTestCase>; |
| |
| // Helper function that returns a valid dilithium key format. |
| StatusOr<DilithiumKeyFormat> CreateValidKeyFormat( |
| int32 private_key_size, DilithiumSeedExpansion seed_expansion) { |
| DilithiumKeyFormat key_format; |
| DilithiumParams* params = key_format.mutable_params(); |
| params->set_key_size(private_key_size); |
| params->set_seed_expansion(seed_expansion); |
| |
| return key_format; |
| } |
| |
| TEST(DilithiumSignKeyManagerTest, Basic) { |
| EXPECT_THAT(DilithiumSignKeyManager().get_version(), Eq(0)); |
| EXPECT_THAT(DilithiumSignKeyManager().key_material_type(), |
| Eq(KeyData::ASYMMETRIC_PRIVATE)); |
| EXPECT_THAT(DilithiumSignKeyManager().get_key_type(), |
| Eq("type.googleapis.com/google.crypto.tink.DilithiumPrivateKey")); |
| } |
| |
| TEST_P(DilithiumSignKeyManagerTest, ValidateKeyFormat) { |
| const DilithiumTestCase& test_case = GetParam(); |
| |
| StatusOr<DilithiumKeyFormat> key_format = CreateValidKeyFormat( |
| test_case.private_key_size, test_case.seed_expansion); |
| ASSERT_THAT(key_format, IsOk()); |
| |
| EXPECT_THAT(DilithiumSignKeyManager().ValidateKeyFormat(*key_format), IsOk()); |
| } |
| |
| TEST_P(DilithiumSignKeyManagerTest, PrivateKeyWrongVersion) { |
| const DilithiumTestCase& test_case = GetParam(); |
| |
| StatusOr<DilithiumKeyFormat> key_format = CreateValidKeyFormat( |
| test_case.private_key_size, test_case.seed_expansion); |
| ASSERT_THAT(key_format, IsOk()); |
| |
| StatusOr<DilithiumPrivateKey> private_key = |
| DilithiumSignKeyManager().CreateKey(*key_format); |
| ASSERT_THAT(private_key, IsOk()); |
| |
| private_key->set_version(1); |
| EXPECT_THAT(DilithiumSignKeyManager().ValidateKey(*private_key), Not(IsOk())); |
| } |
| |
| TEST_P(DilithiumSignKeyManagerTest, CreateKey) { |
| const DilithiumTestCase& test_case = GetParam(); |
| |
| StatusOr<DilithiumKeyFormat> key_format = CreateValidKeyFormat( |
| test_case.private_key_size, test_case.seed_expansion); |
| ASSERT_THAT(key_format, IsOk()); |
| |
| StatusOr<DilithiumPrivateKey> private_key = |
| DilithiumSignKeyManager().CreateKey(*key_format); |
| ASSERT_THAT(private_key, IsOk()); |
| |
| EXPECT_THAT(private_key->version(), Eq(0)); |
| EXPECT_THAT(private_key->public_key().version(), Eq(private_key->version())); |
| EXPECT_THAT(private_key->key_value(), SizeIs(test_case.private_key_size)); |
| EXPECT_THAT(private_key->public_key().key_value(), |
| SizeIs(test_case.public_key_size)); |
| } |
| |
| TEST_P(DilithiumSignKeyManagerTest, CreateKeyValid) { |
| const DilithiumTestCase& test_case = GetParam(); |
| |
| StatusOr<DilithiumKeyFormat> key_format = CreateValidKeyFormat( |
| test_case.private_key_size, test_case.seed_expansion); |
| ASSERT_THAT(key_format, IsOk()); |
| |
| StatusOr<DilithiumPrivateKey> private_key = |
| DilithiumSignKeyManager().CreateKey(*key_format); |
| ASSERT_THAT(private_key, IsOk()); |
| EXPECT_THAT(DilithiumSignKeyManager().ValidateKey(*private_key), IsOk()); |
| } |
| |
| TEST_P(DilithiumSignKeyManagerTest, CreateKeyAlwaysNew) { |
| const DilithiumTestCase& test_case = GetParam(); |
| |
| StatusOr<DilithiumKeyFormat> key_format = CreateValidKeyFormat( |
| test_case.private_key_size, test_case.seed_expansion); |
| ASSERT_THAT(key_format, IsOk()); |
| |
| absl::flat_hash_set<std::string> keys; |
| int num_tests = 100; |
| for (int i = 0; i < num_tests; ++i) { |
| StatusOr<DilithiumPrivateKey> private_key = |
| DilithiumSignKeyManager().CreateKey(*key_format); |
| ASSERT_THAT(private_key, IsOk()); |
| keys.insert(private_key->key_value()); |
| } |
| EXPECT_THAT(keys, SizeIs(num_tests)); |
| } |
| |
| TEST_P(DilithiumSignKeyManagerTest, GetPublicKey) { |
| const DilithiumTestCase& test_case = GetParam(); |
| |
| StatusOr<DilithiumKeyFormat> key_format = CreateValidKeyFormat( |
| test_case.private_key_size, test_case.seed_expansion); |
| ASSERT_THAT(key_format, IsOk()); |
| |
| StatusOr<DilithiumPrivateKey> private_key = |
| DilithiumSignKeyManager().CreateKey(*key_format); |
| ASSERT_THAT(private_key, IsOk()); |
| |
| StatusOr<DilithiumPublicKey> public_key_or = |
| DilithiumSignKeyManager().GetPublicKey(*private_key); |
| ASSERT_THAT(public_key_or, IsOk()); |
| |
| EXPECT_THAT(public_key_or->version(), |
| Eq(private_key->public_key().version())); |
| EXPECT_THAT(public_key_or->key_value(), |
| Eq(private_key->public_key().key_value())); |
| } |
| |
| TEST_P(DilithiumSignKeyManagerTest, Create) { |
| const DilithiumTestCase& test_case = GetParam(); |
| |
| StatusOr<DilithiumKeyFormat> key_format = CreateValidKeyFormat( |
| test_case.private_key_size, test_case.seed_expansion); |
| ASSERT_THAT(key_format, IsOk()); |
| |
| util::StatusOr<DilithiumPrivateKey> private_key = |
| DilithiumSignKeyManager().CreateKey(*key_format); |
| ASSERT_THAT(private_key, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<PublicKeySign>> signer = |
| DilithiumSignKeyManager().GetPrimitive<PublicKeySign>(*private_key); |
| ASSERT_THAT(signer, IsOk()); |
| |
| util::StatusOr<DilithiumPublicKeyPqclean> dilithium_public_key = |
| DilithiumPublicKeyPqclean::NewPublicKey( |
| private_key->public_key().key_value(), |
| EnumsPqcrypto::ProtoToSubtle(test_case.seed_expansion)); |
| |
| util::StatusOr<std::unique_ptr<PublicKeyVerify>> verifier = |
| subtle::DilithiumAvx2Verify::New(*dilithium_public_key); |
| ASSERT_THAT(verifier, IsOk()); |
| |
| std::string message = "Some message"; |
| util::StatusOr<std::string> signature = (*signer)->Sign(message); |
| ASSERT_THAT(signature, IsOk()); |
| EXPECT_THAT((*verifier)->Verify(*signature, message), IsOk()); |
| } |
| |
| TEST_P(DilithiumSignKeyManagerTest, CreateDifferentKey) { |
| const DilithiumTestCase& test_case = GetParam(); |
| |
| StatusOr<DilithiumKeyFormat> key_format = CreateValidKeyFormat( |
| test_case.private_key_size, test_case.seed_expansion); |
| ASSERT_THAT(key_format, IsOk()); |
| |
| util::StatusOr<DilithiumPrivateKey> private_key = |
| DilithiumSignKeyManager().CreateKey(*key_format); |
| ASSERT_THAT(private_key, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<PublicKeySign>> signer = |
| DilithiumSignKeyManager().GetPrimitive<PublicKeySign>(*private_key); |
| ASSERT_THAT(signer, IsOk()); |
| |
| std::string bad_public_key_data(test_case.public_key_size, '@'); |
| util::StatusOr<DilithiumPublicKeyPqclean> dilithium_public_key = |
| DilithiumPublicKeyPqclean::NewPublicKey( |
| bad_public_key_data, |
| EnumsPqcrypto::ProtoToSubtle(test_case.seed_expansion)); |
| util::StatusOr<std::unique_ptr<PublicKeyVerify>> verifier = |
| subtle::DilithiumAvx2Verify::New(*dilithium_public_key); |
| ASSERT_THAT(verifier, IsOk()); |
| |
| std::string message = "Some message"; |
| util::StatusOr<std::string> signature = (*signer)->Sign(message); |
| ASSERT_THAT(signature, IsOk()); |
| EXPECT_THAT((*verifier)->Verify(*signature, message), Not(IsOk())); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P( |
| DilithiumSignKeyManagerTests, DilithiumSignKeyManagerTest, |
| testing::ValuesIn<DilithiumTestCase>({ |
| {"Dilithium2", PQCLEAN_DILITHIUM2_CRYPTO_SECRETKEYBYTES, |
| PQCLEAN_DILITHIUM2_CRYPTO_PUBLICKEYBYTES, |
| DilithiumSeedExpansion::SEED_EXPANSION_SHAKE}, |
| {"Dilithium3", PQCLEAN_DILITHIUM3_CRYPTO_SECRETKEYBYTES, |
| PQCLEAN_DILITHIUM3_CRYPTO_PUBLICKEYBYTES, |
| DilithiumSeedExpansion::SEED_EXPANSION_SHAKE}, |
| {"Dilithium5", PQCLEAN_DILITHIUM5_CRYPTO_SECRETKEYBYTES, |
| PQCLEAN_DILITHIUM5_CRYPTO_PUBLICKEYBYTES, |
| DilithiumSeedExpansion::SEED_EXPANSION_SHAKE}, |
| {"Dilithium2Aes", PQCLEAN_DILITHIUM2AES_CRYPTO_SECRETKEYBYTES, |
| PQCLEAN_DILITHIUM2AES_CRYPTO_PUBLICKEYBYTES, |
| DilithiumSeedExpansion::SEED_EXPANSION_AES}, |
| {"Dilithium3Aes", PQCLEAN_DILITHIUM3AES_CRYPTO_SECRETKEYBYTES, |
| PQCLEAN_DILITHIUM3AES_CRYPTO_PUBLICKEYBYTES, |
| DilithiumSeedExpansion::SEED_EXPANSION_AES}, |
| {"Dilithium5Aes", PQCLEAN_DILITHIUM5AES_CRYPTO_SECRETKEYBYTES, |
| PQCLEAN_DILITHIUM5AES_CRYPTO_PUBLICKEYBYTES, |
| DilithiumSeedExpansion::SEED_EXPANSION_AES}, |
| }), |
| [](const testing::TestParamInfo<DilithiumSignKeyManagerTest::ParamType>& |
| info) { return info.param.test_name; }); |
| |
| } // namespace |
| |
| } // namespace tink |
| } // namespace crypto |