| /* |
| * Copyright 2014 The Android Open Source Project |
| * |
| * 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 SYSTEM_KEYMASTER_OPERATION_H_ |
| #define SYSTEM_KEYMASTER_OPERATION_H_ |
| |
| #include <assert.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| |
| #include <keymaster/google_keymaster_utils.h> |
| #include <keymaster/keymaster_defs.h> |
| #include <keymaster/logger.h> |
| |
| namespace keymaster { |
| |
| /** |
| * Abstract base for all cryptographic operations. |
| */ |
| class Operation { |
| public: |
| Operation(keymaster_purpose_t purpose, const Logger& logger) |
| : purpose_(purpose), logger_(logger) {} |
| virtual ~Operation() {} |
| |
| keymaster_purpose_t purpose() const { return purpose_; } |
| |
| const Logger& logger() { return logger_; } |
| |
| virtual keymaster_error_t Begin() = 0; |
| virtual keymaster_error_t Update(const Buffer& input, Buffer* output) = 0; |
| virtual keymaster_error_t Finish(const Buffer& signature, Buffer* output) = 0; |
| virtual keymaster_error_t Abort() = 0; |
| |
| private: |
| const keymaster_purpose_t purpose_; |
| const Logger& logger_; |
| }; |
| |
| } // namespace keymaster |
| |
| #endif // SYSTEM_KEYMASTER_OPERATION_H_ |