| // Copyright 2021 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 CRYPTOHOME_CRYPTOHOME_KEY_LOADER_H_ |
| #define CRYPTOHOME_CRYPTOHOME_KEY_LOADER_H_ |
| |
| #include <memory> |
| |
| #include <base/files/file_path.h> |
| #include <brillo/secure_blob.h> |
| |
| #include "cryptohome/platform.h" |
| #include "cryptohome/tpm.h" |
| |
| namespace cryptohome { |
| |
| class CryptohomeKeyLoader { |
| public: |
| CryptohomeKeyLoader(Tpm* tpm, Platform* platform, const base::FilePath& path); |
| CryptohomeKeyLoader(const CryptohomeKeyLoader&) = delete; |
| CryptohomeKeyLoader& operator=(const CryptohomeKeyLoader&) = delete; |
| |
| virtual ~CryptohomeKeyLoader() = default; |
| |
| virtual bool HasCryptohomeKey(); |
| |
| virtual TpmKeyHandle GetCryptohomeKey(); |
| |
| virtual bool ReloadCryptohomeKey(); |
| |
| virtual void Init(); |
| |
| protected: |
| Tpm* GetTpm() { return tpm_; } |
| |
| private: |
| virtual bool CreateCryptohomeKey(brillo::SecureBlob* wrapped_key) = 0; |
| bool SaveCryptohomeKey(const brillo::SecureBlob& wrapped_key); |
| |
| hwsec::StatusChain<hwsec::TPMErrorBase> LoadCryptohomeKey( |
| ScopedKeyHandle* key_handle); |
| |
| bool LoadOrCreateCryptohomeKey(ScopedKeyHandle* key_handle); |
| |
| Tpm* tpm_ = nullptr; |
| Platform* platform_ = nullptr; |
| const base::FilePath cryptohome_key_path_; |
| ScopedKeyHandle cryptohome_key_; |
| }; |
| |
| } // namespace cryptohome |
| |
| #endif // CRYPTOHOME_CRYPTOHOME_KEY_LOADER_H_ |