/* * Copyright (c) Atmosphère-NX * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #pragma once #include #include #include #include namespace ams::crypto { /* TODO: C++20 BlockCipher concept */ template class XtsEncryptor { NON_COPYABLE(XtsEncryptor); NON_MOVEABLE(XtsEncryptor); private: using Impl = impl::XtsModeImpl; public: static constexpr size_t BlockSize = Impl::BlockSize; static constexpr size_t IvSize = Impl::IvSize; private: Impl impl; public: XtsEncryptor() { /* ... */ } template void Initialize(const BlockCipher *cipher1, const BlockCipher2 *cipher2, const void *iv, size_t iv_size) { this->impl.InitializeEncryption(cipher1, cipher2, iv, iv_size); } size_t Update(void *dst, size_t dst_size, const void *src, size_t src_size) { return this->impl.template Update(dst, dst_size, src, src_size); } size_t Finalize(void *dst, size_t dst_size) { return this->impl.FinalizeEncryption(dst, dst_size); } }; }