mirror of
https://github.com/RGBCube/serenity
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Libraries: Move to Userland/Libraries/
This commit is contained in:
Andreas Kling
parent
dc28c07fa5
commit
13d7c09125
1857 changed files with 266 additions and 274 deletions
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@ -1,429 +0,0 @@
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/*
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* Copyright (c) 2020, Ali Mohammad Pur <ali.mpfard@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/StringBuilder.h>
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#include <LibCrypto/Cipher/AES.h>
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namespace Crypto {
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namespace Cipher {
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template<typename T>
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constexpr u32 get_key(T pt)
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{
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return ((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ ((u32)(pt)[2] << 8) ^ ((u32)(pt)[3]);
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}
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constexpr void swap_keys(u32* keys, size_t i, size_t j)
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{
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u32 temp = keys[i];
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keys[i] = keys[j];
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keys[j] = temp;
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}
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String AESCipherBlock::to_string() const
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{
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StringBuilder builder;
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for (size_t i = 0; i < BlockSizeInBits / 8; ++i)
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builder.appendf("%02x", m_data[i]);
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return builder.build();
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}
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String AESCipherKey::to_string() const
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{
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StringBuilder builder;
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for (size_t i = 0; i < (rounds() + 1) * 4; ++i)
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builder.appendf("%02x", m_rd_keys[i]);
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return builder.build();
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}
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void AESCipherKey::expand_encrypt_key(ReadonlyBytes user_key, size_t bits)
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{
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u32* round_key;
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u32 temp;
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size_t i { 0 };
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ASSERT(!user_key.is_null());
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ASSERT(is_valid_key_size(bits));
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ASSERT(user_key.size() == bits / 8);
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round_key = round_keys();
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if (bits == 128) {
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m_rounds = 10;
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} else if (bits == 192) {
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m_rounds = 12;
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} else {
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m_rounds = 14;
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}
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round_key[0] = get_key(user_key.data());
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round_key[1] = get_key(user_key.data() + 4);
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round_key[2] = get_key(user_key.data() + 8);
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round_key[3] = get_key(user_key.data() + 12);
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if (bits == 128) {
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for (;;) {
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temp = round_key[3];
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// clang-format off
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round_key[4] = round_key[0] ^
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(AESTables::Encode2[(temp >> 16) & 0xff] & 0xff000000) ^
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(AESTables::Encode3[(temp >> 8) & 0xff] & 0x00ff0000) ^
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(AESTables::Encode0[(temp ) & 0xff] & 0x0000ff00) ^
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(AESTables::Encode1[(temp >> 24) ] & 0x000000ff) ^ AESTables::RCON[i];
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// clang-format on
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round_key[5] = round_key[1] ^ round_key[4];
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round_key[6] = round_key[2] ^ round_key[5];
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round_key[7] = round_key[3] ^ round_key[6];
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++i;
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if (i == 10)
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break;
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round_key += 4;
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}
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return;
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}
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round_key[4] = get_key(user_key.data() + 16);
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round_key[5] = get_key(user_key.data() + 20);
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if (bits == 192) {
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for (;;) {
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temp = round_key[5];
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// clang-format off
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round_key[6] = round_key[0] ^
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(AESTables::Encode2[(temp >> 16) & 0xff] & 0xff000000) ^
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(AESTables::Encode3[(temp >> 8) & 0xff] & 0x00ff0000) ^
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(AESTables::Encode0[(temp ) & 0xff] & 0x0000ff00) ^
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(AESTables::Encode1[(temp >> 24) ] & 0x000000ff) ^ AESTables::RCON[i];
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// clang-format on
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round_key[7] = round_key[1] ^ round_key[6];
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round_key[8] = round_key[2] ^ round_key[7];
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round_key[9] = round_key[3] ^ round_key[8];
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++i;
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if (i == 8)
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break;
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round_key[10] = round_key[4] ^ round_key[9];
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round_key[11] = round_key[5] ^ round_key[10];
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round_key += 6;
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}
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return;
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}
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round_key[6] = get_key(user_key.data() + 24);
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round_key[7] = get_key(user_key.data() + 28);
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if (true) { // bits == 256
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for (;;) {
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temp = round_key[7];
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// clang-format off
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round_key[8] = round_key[0] ^
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(AESTables::Encode2[(temp >> 16) & 0xff] & 0xff000000) ^
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(AESTables::Encode3[(temp >> 8) & 0xff] & 0x00ff0000) ^
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(AESTables::Encode0[(temp ) & 0xff] & 0x0000ff00) ^
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(AESTables::Encode1[(temp >> 24) ] & 0x000000ff) ^ AESTables::RCON[i];
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// clang-format on
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round_key[9] = round_key[1] ^ round_key[8];
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round_key[10] = round_key[2] ^ round_key[9];
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round_key[11] = round_key[3] ^ round_key[10];
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++i;
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if (i == 7)
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break;
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temp = round_key[11];
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// clang-format off
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round_key[12] = round_key[4] ^
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(AESTables::Encode2[(temp >> 24) ] & 0xff000000) ^
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(AESTables::Encode3[(temp >> 16) & 0xff] & 0x00ff0000) ^
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(AESTables::Encode0[(temp >> 8) & 0xff] & 0x0000ff00) ^
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(AESTables::Encode1[(temp ) & 0xff] & 0x000000ff) ;
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// clang-format on
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round_key[13] = round_key[5] ^ round_key[12];
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round_key[14] = round_key[6] ^ round_key[13];
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round_key[15] = round_key[7] ^ round_key[14];
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round_key += 8;
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}
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return;
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}
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}
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void AESCipherKey::expand_decrypt_key(ReadonlyBytes user_key, size_t bits)
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{
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u32* round_key;
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expand_encrypt_key(user_key, bits);
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round_key = round_keys();
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// reorder round keys
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for (size_t i = 0, j = 4 * rounds(); i < j; i += 4, j -= 4) {
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swap_keys(round_key, i, j);
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swap_keys(round_key, i + 1, j + 1);
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swap_keys(round_key, i + 2, j + 2);
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swap_keys(round_key, i + 3, j + 3);
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}
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// apply inverse mix-column to middle rounds
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for (size_t i = 1; i < rounds(); ++i) {
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round_key += 4;
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// clang-format off
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round_key[0] =
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AESTables::Decode0[AESTables::Encode1[(round_key[0] >> 24) ] & 0xff] ^
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AESTables::Decode1[AESTables::Encode1[(round_key[0] >> 16) & 0xff] & 0xff] ^
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AESTables::Decode2[AESTables::Encode1[(round_key[0] >> 8) & 0xff] & 0xff] ^
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AESTables::Decode3[AESTables::Encode1[(round_key[0] ) & 0xff] & 0xff] ;
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round_key[1] =
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AESTables::Decode0[AESTables::Encode1[(round_key[1] >> 24) ] & 0xff] ^
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AESTables::Decode1[AESTables::Encode1[(round_key[1] >> 16) & 0xff] & 0xff] ^
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AESTables::Decode2[AESTables::Encode1[(round_key[1] >> 8) & 0xff] & 0xff] ^
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AESTables::Decode3[AESTables::Encode1[(round_key[1] ) & 0xff] & 0xff] ;
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round_key[2] =
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AESTables::Decode0[AESTables::Encode1[(round_key[2] >> 24) ] & 0xff] ^
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AESTables::Decode1[AESTables::Encode1[(round_key[2] >> 16) & 0xff] & 0xff] ^
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AESTables::Decode2[AESTables::Encode1[(round_key[2] >> 8) & 0xff] & 0xff] ^
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AESTables::Decode3[AESTables::Encode1[(round_key[2] ) & 0xff] & 0xff] ;
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round_key[3] =
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AESTables::Decode0[AESTables::Encode1[(round_key[3] >> 24) ] & 0xff] ^
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AESTables::Decode1[AESTables::Encode1[(round_key[3] >> 16) & 0xff] & 0xff] ^
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AESTables::Decode2[AESTables::Encode1[(round_key[3] >> 8) & 0xff] & 0xff] ^
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AESTables::Decode3[AESTables::Encode1[(round_key[3] ) & 0xff] & 0xff] ;
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// clang-format on
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}
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}
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void AESCipher::encrypt_block(const AESCipherBlock& in, AESCipherBlock& out)
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{
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u32 s0, s1, s2, s3, t0, t1, t2, t3;
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size_t r { 0 };
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const auto& dec_key = key();
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const auto* round_keys = dec_key.round_keys();
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s0 = get_key(in.bytes().offset_pointer(0)) ^ round_keys[0];
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s1 = get_key(in.bytes().offset_pointer(4)) ^ round_keys[1];
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s2 = get_key(in.bytes().offset_pointer(8)) ^ round_keys[2];
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s3 = get_key(in.bytes().offset_pointer(12)) ^ round_keys[3];
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r = dec_key.rounds() >> 1;
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// apply the first |r - 1| rounds
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auto i { 0 };
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for (;;) {
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++i;
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// clang-format off
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t0 = AESTables::Encode0[(s0 >> 24) ] ^
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AESTables::Encode1[(s1 >> 16) & 0xff] ^
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AESTables::Encode2[(s2 >> 8) & 0xff] ^
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AESTables::Encode3[(s3 ) & 0xff] ^ round_keys[4];
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t1 = AESTables::Encode0[(s1 >> 24) ] ^
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AESTables::Encode1[(s2 >> 16) & 0xff] ^
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AESTables::Encode2[(s3 >> 8) & 0xff] ^
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AESTables::Encode3[(s0 ) & 0xff] ^ round_keys[5];
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t2 = AESTables::Encode0[(s2 >> 24) ] ^
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AESTables::Encode1[(s3 >> 16) & 0xff] ^
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AESTables::Encode2[(s0 >> 8) & 0xff] ^
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AESTables::Encode3[(s1 ) & 0xff] ^ round_keys[6];
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t3 = AESTables::Encode0[(s3 >> 24) ] ^
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AESTables::Encode1[(s0 >> 16) & 0xff] ^
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AESTables::Encode2[(s1 >> 8) & 0xff] ^
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AESTables::Encode3[(s2 ) & 0xff] ^ round_keys[7];
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// clang-format on
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round_keys += 8;
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--r;
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++i;
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if (r == 0)
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break;
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// clang-format off
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s0 = AESTables::Encode0[(t0 >> 24) ] ^
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AESTables::Encode1[(t1 >> 16) & 0xff] ^
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AESTables::Encode2[(t2 >> 8) & 0xff] ^
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AESTables::Encode3[(t3 ) & 0xff] ^ round_keys[0];
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s1 = AESTables::Encode0[(t1 >> 24) ] ^
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AESTables::Encode1[(t2 >> 16) & 0xff] ^
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AESTables::Encode2[(t3 >> 8) & 0xff] ^
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AESTables::Encode3[(t0 ) & 0xff] ^ round_keys[1];
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s2 = AESTables::Encode0[(t2 >> 24) ] ^
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AESTables::Encode1[(t3 >> 16) & 0xff] ^
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AESTables::Encode2[(t0 >> 8) & 0xff] ^
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AESTables::Encode3[(t1 ) & 0xff] ^ round_keys[2];
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s3 = AESTables::Encode0[(t3 >> 24) ] ^
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AESTables::Encode1[(t0 >> 16) & 0xff] ^
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AESTables::Encode2[(t1 >> 8) & 0xff] ^
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AESTables::Encode3[(t2 ) & 0xff] ^ round_keys[3];
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// clang-format on
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}
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// apply the last round and put the encrypted data into out
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// clang-format off
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s0 = (AESTables::Encode2[(t0 >> 24) ] & 0xff000000) ^
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(AESTables::Encode3[(t1 >> 16) & 0xff] & 0x00ff0000) ^
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(AESTables::Encode0[(t2 >> 8) & 0xff] & 0x0000ff00) ^
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(AESTables::Encode1[(t3 ) & 0xff] & 0x000000ff) ^ round_keys[0];
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out.put(0, s0);
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s1 = (AESTables::Encode2[(t1 >> 24) ] & 0xff000000) ^
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(AESTables::Encode3[(t2 >> 16) & 0xff] & 0x00ff0000) ^
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(AESTables::Encode0[(t3 >> 8) & 0xff] & 0x0000ff00) ^
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(AESTables::Encode1[(t0 ) & 0xff] & 0x000000ff) ^ round_keys[1];
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out.put(4, s1);
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s2 = (AESTables::Encode2[(t2 >> 24) ] & 0xff000000) ^
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(AESTables::Encode3[(t3 >> 16) & 0xff] & 0x00ff0000) ^
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(AESTables::Encode0[(t0 >> 8) & 0xff] & 0x0000ff00) ^
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(AESTables::Encode1[(t1 ) & 0xff] & 0x000000ff) ^ round_keys[2];
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out.put(8, s2);
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s3 = (AESTables::Encode2[(t3 >> 24) ] & 0xff000000) ^
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(AESTables::Encode3[(t0 >> 16) & 0xff] & 0x00ff0000) ^
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(AESTables::Encode0[(t1 >> 8) & 0xff] & 0x0000ff00) ^
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(AESTables::Encode1[(t2 ) & 0xff] & 0x000000ff) ^ round_keys[3];
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out.put(12, s3);
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// clang-format on
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}
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void AESCipher::decrypt_block(const AESCipherBlock& in, AESCipherBlock& out)
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{
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u32 s0, s1, s2, s3, t0, t1, t2, t3;
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size_t r { 0 };
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const auto& dec_key = key();
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const auto* round_keys = dec_key.round_keys();
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s0 = get_key(in.bytes().offset_pointer(0)) ^ round_keys[0];
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s1 = get_key(in.bytes().offset_pointer(4)) ^ round_keys[1];
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s2 = get_key(in.bytes().offset_pointer(8)) ^ round_keys[2];
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s3 = get_key(in.bytes().offset_pointer(12)) ^ round_keys[3];
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r = dec_key.rounds() >> 1;
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// apply the first |r - 1| rounds
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for (;;) {
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// clang-format off
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t0 = AESTables::Decode0[(s0 >> 24) ] ^
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AESTables::Decode1[(s3 >> 16) & 0xff] ^
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AESTables::Decode2[(s2 >> 8) & 0xff] ^
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AESTables::Decode3[(s1 ) & 0xff] ^ round_keys[4];
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t1 = AESTables::Decode0[(s1 >> 24) ] ^
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AESTables::Decode1[(s0 >> 16) & 0xff] ^
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AESTables::Decode2[(s3 >> 8) & 0xff] ^
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AESTables::Decode3[(s2 ) & 0xff] ^ round_keys[5];
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t2 = AESTables::Decode0[(s2 >> 24) ] ^
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AESTables::Decode1[(s1 >> 16) & 0xff] ^
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AESTables::Decode2[(s0 >> 8) & 0xff] ^
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AESTables::Decode3[(s3 ) & 0xff] ^ round_keys[6];
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t3 = AESTables::Decode0[(s3 >> 24) ] ^
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AESTables::Decode1[(s2 >> 16) & 0xff] ^
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AESTables::Decode2[(s1 >> 8) & 0xff] ^
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AESTables::Decode3[(s0 ) & 0xff] ^ round_keys[7];
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// clang-format on
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round_keys += 8;
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--r;
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if (r == 0)
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break;
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// clang-format off
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s0 = AESTables::Decode0[(t0 >> 24) ] ^
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AESTables::Decode1[(t3 >> 16) & 0xff] ^
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AESTables::Decode2[(t2 >> 8) & 0xff] ^
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AESTables::Decode3[(t1 ) & 0xff] ^ round_keys[0];
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s1 = AESTables::Decode0[(t1 >> 24) ] ^
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AESTables::Decode1[(t0 >> 16) & 0xff] ^
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AESTables::Decode2[(t3 >> 8) & 0xff] ^
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AESTables::Decode3[(t2 ) & 0xff] ^ round_keys[1];
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s2 = AESTables::Decode0[(t2 >> 24) ] ^
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AESTables::Decode1[(t1 >> 16) & 0xff] ^
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AESTables::Decode2[(t0 >> 8) & 0xff] ^
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AESTables::Decode3[(t3 ) & 0xff] ^ round_keys[2];
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s3 = AESTables::Decode0[(t3 >> 24) ] ^
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AESTables::Decode1[(t2 >> 16) & 0xff] ^
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AESTables::Decode2[(t1 >> 8) & 0xff] ^
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AESTables::Decode3[(t0 ) & 0xff] ^ round_keys[3];
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// clang-format on
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}
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// apply the last round and put the decrypted data into out
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// clang-format off
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s0 = ((u32)AESTables::Decode4[(t0 >> 24) ] << 24) ^
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((u32)AESTables::Decode4[(t3 >> 16) & 0xff] << 16) ^
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((u32)AESTables::Decode4[(t2 >> 8) & 0xff] << 8) ^
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((u32)AESTables::Decode4[(t1 ) & 0xff] ) ^ round_keys[0];
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out.put(0, s0);
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s1 = ((u32)AESTables::Decode4[(t1 >> 24) ] << 24) ^
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((u32)AESTables::Decode4[(t0 >> 16) & 0xff] << 16) ^
|
||||
((u32)AESTables::Decode4[(t3 >> 8) & 0xff] << 8) ^
|
||||
((u32)AESTables::Decode4[(t2 ) & 0xff] ) ^ round_keys[1];
|
||||
out.put(4, s1);
|
||||
|
||||
s2 = ((u32)AESTables::Decode4[(t2 >> 24) ] << 24) ^
|
||||
((u32)AESTables::Decode4[(t1 >> 16) & 0xff] << 16) ^
|
||||
((u32)AESTables::Decode4[(t0 >> 8) & 0xff] << 8) ^
|
||||
((u32)AESTables::Decode4[(t3 ) & 0xff] ) ^ round_keys[2];
|
||||
out.put(8, s2);
|
||||
|
||||
s3 = ((u32)AESTables::Decode4[(t3 >> 24) ] << 24) ^
|
||||
((u32)AESTables::Decode4[(t2 >> 16) & 0xff] << 16) ^
|
||||
((u32)AESTables::Decode4[(t1 >> 8) & 0xff] << 8) ^
|
||||
((u32)AESTables::Decode4[(t0 ) & 0xff] ) ^ round_keys[3];
|
||||
out.put(12, s3);
|
||||
// clang-format on
|
||||
}
|
||||
|
||||
void AESCipherBlock::overwrite(ReadonlyBytes bytes)
|
||||
{
|
||||
auto data = bytes.data();
|
||||
auto length = bytes.size();
|
||||
|
||||
ASSERT(length <= this->data_size());
|
||||
this->bytes().overwrite(0, data, length);
|
||||
if (length < this->data_size()) {
|
||||
switch (padding_mode()) {
|
||||
case PaddingMode::Null:
|
||||
// fill with zeros
|
||||
__builtin_memset(m_data + length, 0, this->data_size() - length);
|
||||
break;
|
||||
case PaddingMode::CMS:
|
||||
// fill with the length of the padding bytes
|
||||
__builtin_memset(m_data + length, this->data_size() - length, this->data_size() - length);
|
||||
break;
|
||||
case PaddingMode::RFC5246:
|
||||
// fill with the length of the padding bytes minus one
|
||||
__builtin_memset(m_data + length, this->data_size() - length - 1, this->data_size() - length);
|
||||
break;
|
||||
default:
|
||||
// FIXME: We should handle the rest of the common padding modes
|
||||
ASSERT_NOT_REACHED();
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue