summaryrefslogblamecommitdiffstats
path: root/src/core/crypto/xts_encryption_layer.h
blob: 68b5643b1d7fb1f993777e1f4e2e87df9151432d (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11

                                                               


            





                                         
                                                                      



                                                              
                                                                                      






                                                            
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#pragma once

#include "core/crypto/aes_util.h"
#include "core/crypto/encryption_layer.h"
#include "core/crypto/key_manager.h"

namespace Core::Crypto {

// Sits on top of a VirtualFile and provides XTS-mode AES description.
class XTSEncryptionLayer : public EncryptionLayer {
public:
    XTSEncryptionLayer(FileSys::VirtualFile base, Key256 key);

    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;

private:
    // Must be mutable as operations modify cipher contexts.
    mutable AESCipher<Key256> cipher;
};

} // namespace Core::Crypto