1// Copyright 2015 The Android Open Source Project 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15#ifndef BUFFET_KEYSTORE_ENCRYPTOR_H_ 16#define BUFFET_KEYSTORE_ENCRYPTOR_H_ 17 18#include "buffet/encryptor.h" 19 20#include <memory> 21 22#include <keystore/keystore_client.h> 23 24namespace buffet { 25 26// An Encryptor implementation backed by Brillo Keystore. This class is intended 27// to be the default encryptor on platforms that support it. An implementation 28// of Encryptor::CreateDefaultEncryptor is provided for this class. 29class KeystoreEncryptor : public Encryptor { 30 public: 31 explicit KeystoreEncryptor( 32 std::unique_ptr<keystore::KeystoreClient> keystore); 33 ~KeystoreEncryptor() override = default; 34 35 bool EncryptWithAuthentication(const std::string& plaintext, 36 std::string* ciphertext) override; 37 bool DecryptWithAuthentication(const std::string& ciphertext, 38 std::string* plaintext) override; 39 40 private: 41 std::unique_ptr<keystore::KeystoreClient> keystore_; 42}; 43 44} // namespace buffet 45 46#endif // BUFFET_KEYSTORE_ENCRYPTOR_H_ 47