blob: f342efb574965f87d26766398c7adabe3139716f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <optional>
#include "core/crypto/aes_util.h"
#include "core/crypto/key_manager.h"
#include "core/file_sys/fssystem/fs_i_storage.h"
namespace FileSys {
class AesXtsStorage : public IReadOnlyStorage {
YUZU_NON_COPYABLE(AesXtsStorage);
YUZU_NON_MOVEABLE(AesXtsStorage);
public:
static constexpr size_t AesBlockSize = 0x10;
static constexpr size_t KeySize = 0x20;
static constexpr size_t IvSize = 0x10;
public:
static void MakeAesXtsIv(void* dst, size_t dst_size, s64 offset, size_t block_size);
public:
AesXtsStorage(VirtualFile base, const void* key1, const void* key2, size_t key_size,
const void* iv, size_t iv_size, size_t block_size);
virtual size_t Read(u8* buffer, size_t size, size_t offset) const override;
virtual size_t GetSize() const override;
private:
VirtualFile m_base_storage;
std::array<u8, KeySize> m_key;
std::array<u8, IvSize> m_iv;
const size_t m_block_size;
std::mutex m_mutex;
mutable std::optional<Core::Crypto::AESCipher<Core::Crypto::Key256>> m_cipher;
};
} // namespace FileSys
|
