| // Copyright 2018 Google Inc. |
| // |
| // 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. |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| #ifndef TINK_AEAD_XCHACHA20_POLY1305_KEY_MANAGER_H_ |
| #define TINK_AEAD_XCHACHA20_POLY1305_KEY_MANAGER_H_ |
| |
| #include <algorithm> |
| #include <vector> |
| |
| #include "absl/strings/string_view.h" |
| #include "tink/aead.h" |
| #include "tink/core/key_manager_base.h" |
| #include "tink/key_manager.h" |
| #include "tink/util/errors.h" |
| #include "tink/util/protobuf_helper.h" |
| #include "tink/util/status.h" |
| #include "tink/util/statusor.h" |
| #include "proto/tink.pb.h" |
| #include "proto/xchacha20_poly1305.pb.h" |
| |
| namespace crypto { |
| namespace tink { |
| |
| class XChaCha20Poly1305KeyManager |
| : public KeyManagerBase<Aead, google::crypto::tink::XChaCha20Poly1305Key> { |
| public: |
| static constexpr uint32_t kVersion = 0; |
| |
| XChaCha20Poly1305KeyManager(); |
| |
| // Returns the version of this key manager. |
| uint32_t get_version() const override; |
| |
| // Returns a factory that generates keys of the key type |
| // handled by this manager. |
| const KeyFactory& get_key_factory() const override; |
| |
| virtual ~XChaCha20Poly1305KeyManager() {} |
| |
| protected: |
| crypto::tink::util::StatusOr<std::unique_ptr<Aead>> GetPrimitiveFromKey( |
| const google::crypto::tink::XChaCha20Poly1305Key& key) const override; |
| |
| private: |
| friend class XChaCha20Poly1305KeyFactory; |
| |
| std::unique_ptr<KeyFactory> key_factory_; |
| |
| static crypto::tink::util::Status Validate( |
| const google::crypto::tink::XChaCha20Poly1305Key& key); |
| }; |
| |
| } // namespace tink |
| } // namespace crypto |
| |
| #endif // TINK_AEAD_XCHACHA20_POLY1305_KEY_MANAGER_H_ |