1 // 2 // Copyright (C) 2011 The Android Open Source Project 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #ifndef SHILL_CRYPTO_PROVIDER_H_ 18 #define SHILL_CRYPTO_PROVIDER_H_ 19 20 #include <string> 21 22 #include <base/files/file_path.h> 23 #include <base/memory/scoped_vector.h> 24 #include <gtest/gtest_prod.h> // for FRIEND_TEST 25 26 #include "shill/crypto_interface.h" 27 28 namespace shill { 29 30 class CryptoProvider { 31 public: 32 CryptoProvider(); 33 34 void Init(); 35 36 // Returns |plaintext| encrypted by the highest priority available crypto 37 // module capable of performing the operation. If no module succeeds, returns 38 // |plaintext| as is. 39 std::string Encrypt(const std::string& plaintext); 40 41 // Returns |ciphertext| decrypted by the highest priority available crypto 42 // module capable of performing the operation. If no module succeeds, returns 43 // |ciphertext| as is. 44 std::string Decrypt(const std::string& ciphertext); 45 set_key_matter_file(const base::FilePath & path)46 void set_key_matter_file(const base::FilePath& path) { 47 key_matter_file_ = path; 48 } 49 50 private: 51 FRIEND_TEST(CryptoProviderTest, Init); 52 FRIEND_TEST(KeyFileStoreTest, OpenClose); 53 typedef ScopedVector<CryptoInterface> Cryptos; 54 55 static const char kKeyMatterFile[]; 56 57 // Registered crypto modules in high to low priority order. 58 Cryptos cryptos_; 59 60 base::FilePath key_matter_file_; 61 62 DISALLOW_COPY_AND_ASSIGN(CryptoProvider); 63 }; 64 65 } // namespace shill 66 67 #endif // SHILL_CRYPTO_PROVIDER_H_ 68