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author | Liam <byteslice@airmail.cc> | 2023-08-11 03:34:43 +0200 |
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committer | Liam <byteslice@airmail.cc> | 2023-08-15 23:47:25 +0200 |
commit | 86f6b6b7b2d930e8203114332b04a5c49a780b06 (patch) | |
tree | bf7ff58b0a36051d3c3489a40999d80357c570d0 /src/core/file_sys/fssystem/fssystem_aes_ctr_storage.h | |
parent | Merge pull request #11287 from liamwhite/replaced-bytes (diff) | |
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Diffstat (limited to 'src/core/file_sys/fssystem/fssystem_aes_ctr_storage.h')
-rw-r--r-- | src/core/file_sys/fssystem/fssystem_aes_ctr_storage.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/core/file_sys/fssystem/fssystem_aes_ctr_storage.h b/src/core/file_sys/fssystem/fssystem_aes_ctr_storage.h new file mode 100644 index 000000000..bceb1f9ad --- /dev/null +++ b/src/core/file_sys/fssystem/fssystem_aes_ctr_storage.h @@ -0,0 +1,43 @@ +// 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/errors.h" +#include "core/file_sys/fssystem/fs_i_storage.h" +#include "core/file_sys/vfs.h" + +namespace FileSys { + +class AesCtrStorage : public IStorage { + YUZU_NON_COPYABLE(AesCtrStorage); + YUZU_NON_MOVEABLE(AesCtrStorage); + +public: + static constexpr size_t BlockSize = 0x10; + static constexpr size_t KeySize = 0x10; + static constexpr size_t IvSize = 0x10; + +private: + VirtualFile m_base_storage; + std::array<u8, KeySize> m_key; + std::array<u8, IvSize> m_iv; + mutable std::optional<Core::Crypto::AESCipher<Core::Crypto::Key128>> m_cipher; + +public: + static void MakeIv(void* dst, size_t dst_size, u64 upper, s64 offset); + +public: + AesCtrStorage(VirtualFile base, const void* key, size_t key_size, const void* iv, + size_t iv_size); + + virtual size_t Read(u8* buffer, size_t size, size_t offset) const override; + virtual size_t Write(const u8* buffer, size_t size, size_t offset) override; + virtual size_t GetSize() const override; +}; + +} // namespace FileSys |