mirror of
https://github.com/Atmosphere-NX/Atmosphere-libs.git
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58 lines
2.0 KiB
C++
58 lines
2.0 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_block_cipher.hpp>
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namespace ams::crypto::impl {
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template<size_t _KeySize>
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class AesImpl {
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public:
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static constexpr size_t KeySize = _KeySize;
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static constexpr size_t BlockSize = 16;
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static constexpr s32 RoundCount = (KeySize / 4) + 6;
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static constexpr size_t RoundKeySize = BlockSize * (RoundCount + 1);
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private:
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#ifdef ATMOSPHERE_IS_EXOSPHERE
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int m_slot;
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#endif
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#ifdef ATMOSPHERE_IS_STRATOSPHERE
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u32 m_round_keys[RoundKeySize / sizeof(u32)];
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#endif
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public:
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~AesImpl();
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void Initialize(const void *key, size_t key_size, bool is_encrypt);
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void EncryptBlock(void *dst, size_t dst_size, const void *src, size_t src_size) const;
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void DecryptBlock(void *dst, size_t dst_size, const void *src, size_t src_size) const;
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#ifdef ATMOSPHERE_IS_STRATOSPHERE
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const u8 *GetRoundKey() const {
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return reinterpret_cast<const u8 *>(m_round_keys);
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}
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#endif
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};
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static_assert(BlockCipher<AesImpl<16>>);
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static_assert(BlockCipher<AesImpl<24>>);
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static_assert(BlockCipher<AesImpl<32>>);
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}
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