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