| // Copyright 2020 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SHILL_CRYPTO_H_ |
| #define SHILL_CRYPTO_H_ |
| |
| #include <string> |
| |
| #include <base/optional.h> |
| |
| namespace shill { |
| |
| // Top-level interface for encryption and decryption. Currently only uses ROT47. |
| namespace Crypto { |
| |
| // Returns |plaintext| encrypted by the highest priority available crypto |
| // module capable of performing the operation. |
| std::string Encrypt(const std::string& plaintext); |
| |
| // Returns |ciphertext| decrypted by the highest priority available crypto |
| // module capable of performing the operation. If no module succeeds, returns |
| // base::nullopt. |
| base::Optional<std::string> Decrypt(const std::string& ciphertext); |
| |
| } // namespace Crypto |
| |
| } // namespace shill |
| |
| #endif // SHILL_CRYPTO_H_ |
