9a07ed53eb
Now that we have most of core free of shadowing, we can enable the warning as an error to catch anything that may be remaining and also eliminate this class of logic bug entirely.
37 lines
924 B
C++
37 lines
924 B
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include "core/crypto/aes_util.h"
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#include "core/crypto/encryption_layer.h"
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#include "core/crypto/key_manager.h"
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namespace Core::Crypto {
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// Sits on top of a VirtualFile and provides CTR-mode AES decription.
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class CTREncryptionLayer : public EncryptionLayer {
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public:
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using IVData = std::array<u8, 16>;
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CTREncryptionLayer(FileSys::VirtualFile base_, Key128 key_, std::size_t base_offset_);
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std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
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void SetIV(const IVData& iv);
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private:
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std::size_t base_offset;
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// Must be mutable as operations modify cipher contexts.
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mutable AESCipher<Key128> cipher;
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mutable IVData iv{};
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void UpdateIV(std::size_t offset) const;
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};
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} // namespace Core::Crypto
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