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// Copyright 2023 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/config/global_registry.h"
#include <memory>
#include <string>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "absl/status/status.h"
#include "tink/keyset_handle.h"
#include "tink/util/test_matchers.h"
#include "proto/aes_gcm.pb.h"
#include "proto/tink.pb.h"
namespace crypto {
namespace tink {
namespace {
using ::crypto::tink::test::IsOk;
using ::crypto::tink::test::StatusIs;
using ::google::crypto::tink::AesGcmKey;
using ::google::crypto::tink::AesGcmKeyFormat;
using ::google::crypto::tink::KeyData;
using ::google::crypto::tink::KeyTemplate;
using ::google::crypto::tink::OutputPrefixType;
class FakePrimitive {
public:
explicit FakePrimitive(std::string s) : s_(s) {}
std::string get() { return s_; }
private:
std::string s_;
};
class FakeKeyTypeManager
: public KeyTypeManager<AesGcmKey, AesGcmKeyFormat, List<FakePrimitive>> {
public:
class FakePrimitiveFactory : public PrimitiveFactory<FakePrimitive> {
public:
util::StatusOr<std::unique_ptr<FakePrimitive>> Create(
const AesGcmKey& key) const override {
return absl::make_unique<FakePrimitive>(key.key_value());
}
};
FakeKeyTypeManager()
: KeyTypeManager(absl::make_unique<FakePrimitiveFactory>()) {}
KeyData::KeyMaterialType key_material_type() const override {
return KeyData::SYMMETRIC;
}
uint32_t get_version() const override { return 0; }
const std::string& get_key_type() const override { return key_type_; }
util::Status ValidateKey(const AesGcmKey& key) const override {
return util::OkStatus();
}
util::Status ValidateKeyFormat(
const AesGcmKeyFormat& key_format) const override {
return util::OkStatus();
}
util::StatusOr<AesGcmKey> CreateKey(
const AesGcmKeyFormat& key_format) const override {
return AesGcmKey();
}
util::StatusOr<AesGcmKey> DeriveKey(
const AesGcmKeyFormat& key_format,
InputStream* input_stream) const override {
return AesGcmKey();
}
private:
const std::string key_type_ =
"type.googleapis.com/google.crypto.tink.AesGcmKey";
};
class FakePrimitiveWrapper
: public PrimitiveWrapper<FakePrimitive, FakePrimitive> {
public:
util::StatusOr<std::unique_ptr<FakePrimitive>> Wrap(
std::unique_ptr<PrimitiveSet<FakePrimitive>> primitive_set)
const override {
return absl::make_unique<FakePrimitive>(
primitive_set->get_primary()->get_primitive().get());
}
};
TEST(GlobalRegistryTest, GenerateNewKeysetHandleFromKeyGenConfig) {
Registry::Reset();
KeyTemplate templ;
templ.set_type_url("type.googleapis.com/google.crypto.tink.AesGcmKey");
templ.set_output_prefix_type(OutputPrefixType::TINK);
EXPECT_THAT(
KeysetHandle::GenerateNew(templ, KeyGenConfigGlobalRegistry()).status(),
StatusIs(absl::StatusCode::kNotFound));
ASSERT_THAT(
Registry::RegisterKeyTypeManager(absl::make_unique<FakeKeyTypeManager>(),
/*new_key_allowed=*/true),
IsOk());
EXPECT_THAT(
KeysetHandle::GenerateNew(templ, KeyGenConfigGlobalRegistry()).status(),
IsOk());
}
TEST(GlobalRegistryTest, GetPrimitiveFromConfig) {
Registry::Reset();
ASSERT_THAT(
Registry::RegisterKeyTypeManager(absl::make_unique<FakeKeyTypeManager>(),
/*new_key_allowed=*/true),
IsOk());
KeyTemplate templ;
templ.set_type_url("type.googleapis.com/google.crypto.tink.AesGcmKey");
templ.set_output_prefix_type(OutputPrefixType::TINK);
util::StatusOr<std::unique_ptr<KeysetHandle>> handle =
KeysetHandle::GenerateNew(templ, KeyGenConfigGlobalRegistry());
ASSERT_THAT(handle, IsOk());
EXPECT_THAT(
(*handle)->GetPrimitive<FakePrimitive>(ConfigGlobalRegistry()).status(),
StatusIs(absl::StatusCode::kNotFound));
Registry::Reset();
ASSERT_THAT(
Registry::RegisterKeyTypeManager(absl::make_unique<FakeKeyTypeManager>(),
/*new_key_allowed=*/true),
IsOk());
ASSERT_THAT(Registry::RegisterPrimitiveWrapper(
absl::make_unique<FakePrimitiveWrapper>()),
IsOk());
EXPECT_THAT((*handle)->GetPrimitive<FakePrimitive>(ConfigGlobalRegistry()),
IsOk());
}
} // namespace
} // namespace tink
} // namespace crypto
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