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1648d189d3
Co-authored-by: palfaiate <syl.paulo.alfaiate@gmail.com> Co-authored-by: SylverDiscord51 <p71468162@gmail.com> Co-committed-by: SylverDiscord51 <p71468162@gmail.com>
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <optional>
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#include "core/crypto/aes_util.h"
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#include "core/crypto/key_manager.h"
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#include "core/file_sys/errors.h"
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#include "core/file_sys/fssystem/fs_i_storage.h"
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#include "core/file_sys/vfs/vfs.h"
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namespace FileSys {
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class AesCtrStorage : public IStorage {
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SUYU_NON_COPYABLE(AesCtrStorage);
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SUYU_NON_MOVEABLE(AesCtrStorage);
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public:
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static constexpr size_t BlockSize = 0x10;
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static constexpr size_t KeySize = 0x10;
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static constexpr size_t IvSize = 0x10;
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public:
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static void MakeIv(void* dst, size_t dst_size, u64 upper, s64 offset);
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public:
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AesCtrStorage(VirtualFile base, const void* key, size_t key_size, const void* iv,
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size_t iv_size);
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virtual size_t Read(u8* buffer, size_t size, size_t offset) const override;
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virtual size_t Write(const u8* buffer, size_t size, size_t offset) override;
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virtual size_t GetSize() const override;
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private:
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VirtualFile m_base_storage;
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std::array<u8, KeySize> m_key;
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std::array<u8, IvSize> m_iv;
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mutable std::optional<Core::Crypto::AESCipher<Core::Crypto::Key128>> m_cipher;
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};
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} // namespace FileSys
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