| // Copyright 2019 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. |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #ifndef TINK_SUBTLE_STREAMING_MAC_IMPL_H_ |
| #define TINK_SUBTLE_STREAMING_MAC_IMPL_H_ |
| |
| #include <memory> |
| #include <string> |
| #include <utility> |
| |
| #include "tink/streaming_mac.h" |
| #include "tink/subtle/mac/stateful_mac.h" |
| |
| namespace crypto { |
| namespace tink { |
| namespace subtle { |
| |
| class StreamingMacImpl : public StreamingMac { |
| public: |
| // Constructor |
| explicit StreamingMacImpl(std::unique_ptr<StatefulMacFactory> mac_factory) |
| : mac_factory_(std::move(mac_factory)) {} |
| |
| // Implement streaming mac class functions |
| // Returns an ComputeMacOutputStream, which when closed will return the |
| // message authentication code (MAC) of the data put into the stream. |
| util::StatusOr<std::unique_ptr<OutputStreamWithResult<std::string>>> |
| NewComputeMacOutputStream() const override; |
| |
| // Returns an VerifyMacOutputStream which verifies if 'mac' is a correct |
| // message authentication code (MAC) for the data written to it. |
| util::StatusOr<std::unique_ptr<OutputStreamWithResult<util::Status>>> |
| NewVerifyMacOutputStream(const std::string& mac_value) const override; |
| |
| private: |
| std::unique_ptr<StatefulMacFactory> mac_factory_; |
| }; |
| |
| } // namespace subtle |
| } // namespace tink |
| } // namespace crypto |
| |
| #endif // TINK_SUBTLE_STREAMING_MAC_IMPL_H_ |