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aes.cpp
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aes.cpp
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#include "aes.h"
#include <cassert>
#include <cstring>
extern "C" {
#include <wmmintrin.h> //for intrinsics for AES-NI
}
namespace {
#define ROTL8(x, shift) ((uint8_t)((x) << (shift)) | ((x) >> (8 - (shift))))
constexpr unsigned char AES_SBOX_AFFINE_CONST = 0x63;
unsigned char multiply(unsigned int a, unsigned int b) {
unsigned char result = 0;
for (int i = 0; i < 8; ++i) {
uint8_t mask = -(b & 1);
result ^= (a & mask);
uint16_t mask2 = -((uint16_t)(a >> 7) & 1);
a <<= 1;
a ^= (0x11b & mask2);
b >>= 1;
}
return result;
}
unsigned char square(unsigned char c) { return multiply(c, c); }
unsigned char inverse(unsigned char c) {
unsigned char c3 = multiply(square(c), c);
unsigned char c7 = multiply(square(c3), c);
unsigned char c63 = multiply(square(square(square(c7))), c7);
unsigned char c127 = multiply(square(c63), c);
unsigned char c254 = square(c127);
return c254;
}
// AES-NI helper functions from the intel white paper
// https://www.intel.com/content/dam/doc/white-paper/advanced-encryption-standard-new-instructions-set-paper.pdf
#define AES_128_key_exp(k, rcon) \
aes_128_key_expansion(k, _mm_aeskeygenassist_si128(k, rcon))
inline __m128i aes_128_key_expansion(__m128i key, __m128i keygened) {
keygened = _mm_shuffle_epi32(keygened, _MM_SHUFFLE(3, 3, 3, 3));
key = _mm_xor_si128(key, _mm_slli_si128(key, 4));
key = _mm_xor_si128(key, _mm_slli_si128(key, 4));
key = _mm_xor_si128(key, _mm_slli_si128(key, 4));
return _mm_xor_si128(key, keygened);
}
inline void KEY_192_ASSIST(__m128i *temp1, __m128i *temp2, __m128i *temp3) {
__m128i temp4;
*temp2 = _mm_shuffle_epi32(*temp2, 0x55);
temp4 = _mm_slli_si128(*temp1, 0x4);
*temp1 = _mm_xor_si128(*temp1, temp4);
temp4 = _mm_slli_si128(temp4, 0x4);
*temp1 = _mm_xor_si128(*temp1, temp4);
temp4 = _mm_slli_si128(temp4, 0x4);
*temp1 = _mm_xor_si128(*temp1, temp4);
*temp1 = _mm_xor_si128(*temp1, *temp2);
*temp2 = _mm_shuffle_epi32(*temp1, 0xff);
temp4 = _mm_slli_si128(*temp3, 0x4);
*temp3 = _mm_xor_si128(*temp3, temp4);
*temp3 = _mm_xor_si128(*temp3, *temp2);
}
inline void KEY_256_ASSIST_1(__m128i *temp1, __m128i *temp2) {
__m128i temp4;
*temp2 = _mm_shuffle_epi32(*temp2, 0xff);
temp4 = _mm_slli_si128(*temp1, 0x4);
*temp1 = _mm_xor_si128(*temp1, temp4);
temp4 = _mm_slli_si128(temp4, 0x4);
*temp1 = _mm_xor_si128(*temp1, temp4);
temp4 = _mm_slli_si128(temp4, 0x4);
*temp1 = _mm_xor_si128(*temp1, temp4);
*temp1 = _mm_xor_si128(*temp1, *temp2);
}
inline void KEY_256_ASSIST_2(__m128i temp1, __m128i *temp3) {
__m128i temp2;
temp2 = _mm_shuffle_epi32(temp1, 0xaa);
temp1 = _mm_slli_si128(*temp3, 0x4);
*temp3 = _mm_xor_si128(*temp3, temp1);
temp1 = _mm_slli_si128(temp1, 0x4);
*temp3 = _mm_xor_si128(*temp3, temp1);
temp1 = _mm_slli_si128(temp1, 0x4);
*temp3 = _mm_xor_si128(*temp3, temp1);
*temp3 = _mm_xor_si128(*temp3, temp2);
}
#define AES_128_key_exp_restore(key, m, s_shares, t_shares, party, sbox_index, \
affine, rcon) \
do { \
__m128i keygend = _mm_setzero_si128(); \
uint8_t s, t; \
s = _mm_extract_epi8(m, 13); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine ^ rcon, 12); \
s = _mm_extract_epi8(m, 14); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine, 13); \
s = _mm_extract_epi8(m, 15); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine, 14); \
s = _mm_extract_epi8(m, 12); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine, 15); \
keygend = _mm_shuffle_epi32(keygend, _MM_SHUFFLE(3, 3, 3, 3)); \
key = _mm_xor_si128(m, _mm_slli_si128(m, 4)); \
key = _mm_xor_si128(key, _mm_slli_si128(key, 4)); \
key = _mm_xor_si128(key, _mm_slli_si128(key, 4)); \
key = _mm_xor_si128(key, keygend); \
} while (0)
#define AES_192_key_exp_restore(key, m, s_shares, t_shares, party, sbox_index, \
affine, rcon) \
do { \
__m128i keygend = _mm_setzero_si128(); \
uint8_t s, t; \
s = _mm_extract_epi8(m, 5); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine ^ rcon, 4); \
s = _mm_extract_epi8(m, 6); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine, 5); \
s = _mm_extract_epi8(m, 7); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine, 6); \
s = _mm_extract_epi8(m, 4); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
key = _mm_insert_epi8(keygend, t ^ affine, 7); \
} while (0)
#define AES_256_key_exp_restore(key, m, s_shares, t_shares, party, sbox_index, \
affine, rcon) \
do { \
__m128i keygend = _mm_setzero_si128(); \
uint8_t s, t; \
s = _mm_extract_epi8(m, 13); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine ^ rcon, 12); \
s = _mm_extract_epi8(m, 14); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine, 13); \
s = _mm_extract_epi8(m, 15); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine, 14); \
s = _mm_extract_epi8(m, 12); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
key = _mm_insert_epi8(keygend, t ^ affine, 15); \
} while (0)
#define AES_256_key_exp_restore_2(key, m, s_shares, t_shares, party, \
sbox_index, affine) \
do { \
__m128i keygend = _mm_setzero_si128(); \
uint8_t s, t; \
s = _mm_extract_epi8(m, 12); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine, 8); \
s = _mm_extract_epi8(m, 13); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine, 9); \
s = _mm_extract_epi8(m, 14); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
keygend = _mm_insert_epi8(keygend, t ^ affine, 10); \
s = _mm_extract_epi8(m, 15); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
t = t ^ ROTL8(t, 1) ^ ROTL8(t, 2) ^ ROTL8(t, 3) ^ ROTL8(t, 4); \
key = _mm_insert_epi8(keygend, t ^ affine, 11); \
} while (0)
// helper functions to check for zeros in sbox inputs
#define check_for_zeros_KS(m) \
do { \
__m128i res = _mm_cmpeq_epi8(m, _mm_setzero_si128()); \
if (!_mm_test_all_zeros(res, _mm_set_epi32(-1, 0, 0, 0))) { \
return false; \
} \
} while (0)
#define check_for_zeros_KS_192(m) \
do { \
__m128i res = _mm_cmpeq_epi8(m, _mm_setzero_si128()); \
if (!_mm_test_all_zeros(res, _mm_set_epi32(0, 0, -1, 0))) { \
return false; \
} \
} while (0)
#define check_for_zeros(m) \
do { \
__m128i res = _mm_cmpeq_epi8(m, _mm_setzero_si128()); \
if (!_mm_test_all_zeros(res, _mm_set1_epi64x(-1))) { \
return false; \
} \
} while (0)
// order is 13,14,15,12 due to rotword before sbox
#define check_for_zeros_and_save_KS(m, saved_sbox_state) \
do { \
uint8_t s, t; \
s = _mm_extract_epi8(m, 13); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
s = _mm_extract_epi8(m, 14); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
s = _mm_extract_epi8(m, 15); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
s = _mm_extract_epi8(m, 12); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
} while (0)
// order is 5,6,7,4 due to rotword before sbox
#define check_for_zeros_and_save_KS_192(m, saved_sbox_state) \
do { \
uint8_t s, t; \
s = _mm_extract_epi8(m, 5); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
s = _mm_extract_epi8(m, 6); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
s = _mm_extract_epi8(m, 7); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
s = _mm_extract_epi8(m, 4); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
} while (0)
#define check_for_zeros_and_save_KS_256(m, saved_sbox_state) \
do { \
uint8_t s, t; \
s = _mm_extract_epi8(m, 12); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
s = _mm_extract_epi8(m, 13); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
s = _mm_extract_epi8(m, 14); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
s = _mm_extract_epi8(m, 15); \
if (s == 0) \
return false; \
t = inverse(s); \
saved_sbox_state.first.push_back(s); \
saved_sbox_state.second.push_back(t); \
} while (0)
#define check_for_zeros_and_save(m, saved_sbox_state) \
do { \
__m128i res = _mm_cmpeq_epi8(m, _mm_setzero_si128()); \
if (!_mm_test_all_zeros(res, _mm_set1_epi64x(-1))) { \
return false; \
} \
uint8_t buf[16]; \
_mm_storeu_si128((__m128i *)buf, m); \
for (int i = 0; i < 4; i++) { \
for (int j = 0; j < 4; j++) { \
saved_sbox_state.first.push_back(buf[j * 4 + i]); \
saved_sbox_state.second.push_back(inverse(buf[j * 4 + i])); \
} \
} \
} while (0)
// order is 13,14,15,12 due to rotword before sbox
#define restore_t_shares_KS(m, s_shares, t_shares, party, sbox_index) \
do { \
uint8_t s, t; \
s = _mm_extract_epi8(m, 13); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
s = inverse(t); \
m = _mm_insert_epi8(m, s, 13); \
s = _mm_extract_epi8(m, 14); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
s = inverse(t); \
m = _mm_insert_epi8(m, s, 14); \
s = _mm_extract_epi8(m, 15); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
s = inverse(t); \
m = _mm_insert_epi8(m, s, 15); \
s = _mm_extract_epi8(m, 12); \
s_shares[party][sbox_index] = s; \
t = t_shares[party][sbox_index++]; \
s = inverse(t); \
m = _mm_insert_epi8(m, s, 12); \
} while (0)
#define _mm_srli_epi8(mm, Imm) \
_mm_and_si128(_mm_set1_epi8(0xFF >> Imm), _mm_srli_epi32(mm, Imm))
#define _mm_slli_epi8(mm, Imm) \
_mm_and_si128(_mm_set1_epi8((uint8_t)(0xFF << Imm)), _mm_slli_epi32(mm, Imm))
#define _mm_rotl_epi8(mm, shift) \
_mm_or_si128(_mm_slli_epi8(mm, shift), _mm_srli_epi8(mm, (8 - shift)))
#define restore_t_shares(m, s_shares, t_shares, party, sbox_index) \
do { \
__m128i tmp; \
tmp = _mm_shuffle_epi8(m, _mm_set_epi8(15, 11, 7, 3, 14, 10, 6, 2, 13, 9, \
5, 1, 12, 8, 4, 0)); \
_mm_storeu_si128((__m128i *)(&s_shares[party][sbox_index]), tmp); \
m = _mm_loadu_si128((const __m128i *)(&t_shares[party][sbox_index])); \
sbox_index += 16; \
m = _mm_shuffle_epi8(m, _mm_set_epi8(14, 9, 4, 3, 13, 8, 7, 2, 12, 11, 6, \
1, 15, 10, 5, 0)); \
tmp = _mm_xor_si128(_mm_rotl_epi8(m, 1), _mm_rotl_epi8(m, 3)); \
tmp = _mm_xor_si128(tmp, _mm_rotl_epi8(tmp, 1)); \
m = _mm_xor_si128(tmp, m); \
if (party == 0) \
m = _mm_xor_si128(m, _mm_set1_epi8(AES_SBOX_AFFINE_CONST)); \
} while (0)
} // namespace
namespace AES128 {
static bool aes_128_aesni(const uint8_t *key, const uint8_t *plaintext,
uint8_t *ciphertext) {
__m128i key_schedule[11];
key_schedule[0] = _mm_loadu_si128((const __m128i *)key);
check_for_zeros_KS(key_schedule[0]);
key_schedule[1] = AES_128_key_exp(key_schedule[0], 0x01);
check_for_zeros_KS(key_schedule[1]);
key_schedule[2] = AES_128_key_exp(key_schedule[1], 0x02);
check_for_zeros_KS(key_schedule[2]);
key_schedule[3] = AES_128_key_exp(key_schedule[2], 0x04);
check_for_zeros_KS(key_schedule[3]);
key_schedule[4] = AES_128_key_exp(key_schedule[3], 0x08);
check_for_zeros_KS(key_schedule[4]);
key_schedule[5] = AES_128_key_exp(key_schedule[4], 0x10);
check_for_zeros_KS(key_schedule[5]);
key_schedule[6] = AES_128_key_exp(key_schedule[5], 0x20);
check_for_zeros_KS(key_schedule[6]);
key_schedule[7] = AES_128_key_exp(key_schedule[6], 0x40);
check_for_zeros_KS(key_schedule[7]);
key_schedule[8] = AES_128_key_exp(key_schedule[7], 0x80);
check_for_zeros_KS(key_schedule[8]);
key_schedule[9] = AES_128_key_exp(key_schedule[8], 0x1B);
check_for_zeros_KS(key_schedule[9]);
key_schedule[10] = AES_128_key_exp(key_schedule[9], 0x36);
__m128i m = _mm_loadu_si128((__m128i *)plaintext);
m = _mm_xor_si128(m, key_schedule[0]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[1]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[2]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[3]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[4]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[5]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[6]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[7]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[8]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[9]);
check_for_zeros(m);
m = _mm_aesenclast_si128(m, key_schedule[10]);
_mm_storeu_si128((__m128i *)ciphertext, m);
return true;
}
static bool aes_128_save_sbox_state_aesni(
const uint8_t *key, const uint8_t *plaintext, uint8_t *ciphertext,
std::pair<std::vector<uint8_t>, std::vector<uint8_t>> &saved_sbox_state) {
__m128i key_schedule[11];
key_schedule[0] = _mm_loadu_si128((const __m128i *)key);
check_for_zeros_and_save_KS(key_schedule[0], saved_sbox_state);
key_schedule[1] = AES_128_key_exp(key_schedule[0], 0x01);
check_for_zeros_and_save_KS(key_schedule[1], saved_sbox_state);
key_schedule[2] = AES_128_key_exp(key_schedule[1], 0x02);
check_for_zeros_and_save_KS(key_schedule[2], saved_sbox_state);
key_schedule[3] = AES_128_key_exp(key_schedule[2], 0x04);
check_for_zeros_and_save_KS(key_schedule[3], saved_sbox_state);
key_schedule[4] = AES_128_key_exp(key_schedule[3], 0x08);
check_for_zeros_and_save_KS(key_schedule[4], saved_sbox_state);
key_schedule[5] = AES_128_key_exp(key_schedule[4], 0x10);
check_for_zeros_and_save_KS(key_schedule[5], saved_sbox_state);
key_schedule[6] = AES_128_key_exp(key_schedule[5], 0x20);
check_for_zeros_and_save_KS(key_schedule[6], saved_sbox_state);
key_schedule[7] = AES_128_key_exp(key_schedule[6], 0x40);
check_for_zeros_and_save_KS(key_schedule[7], saved_sbox_state);
key_schedule[8] = AES_128_key_exp(key_schedule[7], 0x80);
check_for_zeros_and_save_KS(key_schedule[8], saved_sbox_state);
key_schedule[9] = AES_128_key_exp(key_schedule[8], 0x1B);
check_for_zeros_and_save_KS(key_schedule[9], saved_sbox_state);
key_schedule[10] = AES_128_key_exp(key_schedule[9], 0x36);
__m128i m = _mm_loadu_si128((__m128i *)plaintext);
m = _mm_xor_si128(m, key_schedule[0]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[1]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[2]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[3]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[4]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[5]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[6]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[7]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[8]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[9]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenclast_si128(m, key_schedule[10]);
_mm_storeu_si128((__m128i *)ciphertext, m);
return true;
}
bool aes_128(const std::vector<uint8_t> &key_in,
const std::vector<uint8_t> &plaintext_in,
std::vector<uint8_t> &ciphertext_out) {
assert(key_in.size() == AES128::KEY_SIZE);
assert(plaintext_in.size() == AES128::BLOCK_SIZE * AES128::NUM_BLOCKS);
ciphertext_out.resize(AES128::BLOCK_SIZE * AES128::NUM_BLOCKS);
return aes_128_aesni(key_in.data(), plaintext_in.data(),
ciphertext_out.data());
}
std::pair<std::vector<uint8_t>, std::vector<uint8_t>>
aes_128_with_sbox_output(const std::vector<uint8_t> &key_in,
const std::vector<uint8_t> &plaintext_in,
std::vector<uint8_t> &ciphertext_out) {
assert(key_in.size() == AES128::KEY_SIZE);
assert(plaintext_in.size() == AES128::BLOCK_SIZE * AES128::NUM_BLOCKS);
std::pair<std::vector<uint8_t>, std::vector<uint8_t>> result;
result.first.reserve(AES128::NUM_SBOXES);
result.second.reserve(AES128::NUM_SBOXES);
ciphertext_out.resize(AES128::BLOCK_SIZE * AES128::NUM_BLOCKS);
bool ret = aes_128_save_sbox_state_aesni(key_in.data(), plaintext_in.data(),
ciphertext_out.data(), result);
(void)ret;
assert(ret);
return result;
}
void aes_128_s_shares(const std::vector<gsl::span<uint8_t>> &key_in,
const std::vector<gsl::span<uint8_t>> &t_shares,
const std::vector<uint8_t> &plaintext_in,
std::vector<gsl::span<uint8_t>> &ciphertext_out,
std::vector<gsl::span<uint8_t>> &s_shares) {
#pragma GCC diagnostic ignored "-Wignored-attributes"
typedef std::array<__m128i, 11> expanded_key_t;
#pragma GCC diagnostic pop
int num_parties = key_in.size();
std::vector<expanded_key_t> key_schedule(num_parties);
__m128i state;
int party = 0;
int sbox_index = 0;
// first party do normal sbox + rcon
{
key_schedule[party][0] =
_mm_loadu_si128((const __m128i *)key_in[party].data());
AES_128_key_exp_restore(key_schedule[party][1], key_schedule[party][0],
s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x1);
AES_128_key_exp_restore(key_schedule[party][2], key_schedule[party][1],
s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x2);
AES_128_key_exp_restore(key_schedule[party][3], key_schedule[party][2],
s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x4);
AES_128_key_exp_restore(key_schedule[party][4], key_schedule[party][3],
s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x8);
AES_128_key_exp_restore(key_schedule[party][5], key_schedule[party][4],
s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x10);
AES_128_key_exp_restore(key_schedule[party][6], key_schedule[party][5],
s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x20);
AES_128_key_exp_restore(key_schedule[party][7], key_schedule[party][6],
s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x40);
AES_128_key_exp_restore(key_schedule[party][8], key_schedule[party][7],
s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x80);
AES_128_key_exp_restore(key_schedule[party][9], key_schedule[party][8],
s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x1B);
AES_128_key_exp_restore(key_schedule[party][10], key_schedule[party][9],
s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x36);
}
// other parties do not add rcon or affine part of sbox
for (party = 1; party < num_parties; party++) {
sbox_index = 0;
key_schedule[party][0] =
_mm_loadu_si128((const __m128i *)key_in[party].data());
AES_128_key_exp_restore(key_schedule[party][1], key_schedule[party][0],
s_shares, t_shares, party, sbox_index, 0x0, 0x0);
AES_128_key_exp_restore(key_schedule[party][2], key_schedule[party][1],
s_shares, t_shares, party, sbox_index, 0x0, 0x0);
AES_128_key_exp_restore(key_schedule[party][3], key_schedule[party][2],
s_shares, t_shares, party, sbox_index, 0x0, 0x0);
AES_128_key_exp_restore(key_schedule[party][4], key_schedule[party][3],
s_shares, t_shares, party, sbox_index, 0x0, 0x0);
AES_128_key_exp_restore(key_schedule[party][5], key_schedule[party][4],
s_shares, t_shares, party, sbox_index, 0x0, 0x0);
AES_128_key_exp_restore(key_schedule[party][6], key_schedule[party][5],
s_shares, t_shares, party, sbox_index, 0x0, 0x0);
AES_128_key_exp_restore(key_schedule[party][7], key_schedule[party][6],
s_shares, t_shares, party, sbox_index, 0x0, 0x0);
AES_128_key_exp_restore(key_schedule[party][8], key_schedule[party][7],
s_shares, t_shares, party, sbox_index, 0x0, 0x0);
AES_128_key_exp_restore(key_schedule[party][9], key_schedule[party][8],
s_shares, t_shares, party, sbox_index, 0x0, 0x0);
AES_128_key_exp_restore(key_schedule[party][10], key_schedule[party][9],
s_shares, t_shares, party, sbox_index, 0x0, 0x0);
}
for (party = 0; party < num_parties; party++) {
sbox_index = 40;
if (party == 0)
state = _mm_loadu_si128((__m128i *)plaintext_in.data());
else
state = _mm_setzero_si128();
state = _mm_xor_si128(state, key_schedule[party][0]);
restore_t_shares(state, s_shares, t_shares, party, sbox_index);
state = _mm_aesimc_si128(_mm_aesimc_si128(_mm_aesimc_si128(state)));
state = _mm_xor_si128(state, key_schedule[party][1]);
restore_t_shares(state, s_shares, t_shares, party, sbox_index);
state = _mm_aesimc_si128(_mm_aesimc_si128(_mm_aesimc_si128(state)));
state = _mm_xor_si128(state, key_schedule[party][2]);
restore_t_shares(state, s_shares, t_shares, party, sbox_index);
state = _mm_aesimc_si128(_mm_aesimc_si128(_mm_aesimc_si128(state)));
state = _mm_xor_si128(state, key_schedule[party][3]);
restore_t_shares(state, s_shares, t_shares, party, sbox_index);
state = _mm_aesimc_si128(_mm_aesimc_si128(_mm_aesimc_si128(state)));
state = _mm_xor_si128(state, key_schedule[party][4]);
restore_t_shares(state, s_shares, t_shares, party, sbox_index);
state = _mm_aesimc_si128(_mm_aesimc_si128(_mm_aesimc_si128(state)));
state = _mm_xor_si128(state, key_schedule[party][5]);
restore_t_shares(state, s_shares, t_shares, party, sbox_index);
state = _mm_aesimc_si128(_mm_aesimc_si128(_mm_aesimc_si128(state)));
state = _mm_xor_si128(state, key_schedule[party][6]);
restore_t_shares(state, s_shares, t_shares, party, sbox_index);
state = _mm_aesimc_si128(_mm_aesimc_si128(_mm_aesimc_si128(state)));
state = _mm_xor_si128(state, key_schedule[party][7]);
restore_t_shares(state, s_shares, t_shares, party, sbox_index);
state = _mm_aesimc_si128(_mm_aesimc_si128(_mm_aesimc_si128(state)));
state = _mm_xor_si128(state, key_schedule[party][8]);
restore_t_shares(state, s_shares, t_shares, party, sbox_index);
state = _mm_aesimc_si128(_mm_aesimc_si128(_mm_aesimc_si128(state)));
state = _mm_xor_si128(state, key_schedule[party][9]);
restore_t_shares(state, s_shares, t_shares, party, sbox_index);
state = _mm_xor_si128(state, key_schedule[party][10]);
_mm_storeu_si128((__m128i *)ciphertext_out[party].data(), state);
}
}
} // namespace AES128
namespace AES192 {
static bool AES_192_Key_Expansion(const unsigned char *userkey,
__m128i *Key_Schedule) {
__m128i temp1, temp2, temp3;
temp1 = _mm_loadu_si128((__m128i *)userkey);
temp3 = _mm_loadu_si128((__m128i *)(userkey + 16));
Key_Schedule[0] = temp1;
Key_Schedule[1] = temp3;
check_for_zeros_KS_192(temp3);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x1);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[1] =
(__m128i)_mm_shuffle_pd((__m128d)Key_Schedule[1], (__m128d)temp1, 0);
Key_Schedule[2] = (__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
check_for_zeros_KS_192(temp3);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x2);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[3] = temp1;
Key_Schedule[4] = temp3;
check_for_zeros_KS_192(temp3);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x4);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[4] =
(__m128i)_mm_shuffle_pd((__m128d)Key_Schedule[4], (__m128d)temp1, 0);
Key_Schedule[5] = (__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
check_for_zeros_KS_192(temp3);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x8);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[6] = temp1;
Key_Schedule[7] = temp3;
check_for_zeros_KS_192(temp3);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x10);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[7] =
(__m128i)_mm_shuffle_pd((__m128d)Key_Schedule[7], (__m128d)temp1, 0);
Key_Schedule[8] = (__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
check_for_zeros_KS_192(temp3);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x20);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[9] = temp1;
Key_Schedule[10] = temp3;
check_for_zeros_KS_192(temp3);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x40);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[10] =
(__m128i)_mm_shuffle_pd((__m128d)Key_Schedule[10], (__m128d)temp1, 0);
Key_Schedule[11] = (__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
check_for_zeros_KS_192(temp3);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x80);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[12] = temp1;
return true;
}
static bool aes_192_aesni(const uint8_t *key, const uint8_t *plaintext,
uint8_t *ciphertext) {
uint8_t key_tmp[32] = {
0,
};
memcpy(key_tmp, key, 24);
__m128i key_schedule[13];
if (!AES_192_Key_Expansion(key_tmp, key_schedule))
return false;
__m128i m = _mm_loadu_si128((__m128i *)plaintext);
m = _mm_xor_si128(m, key_schedule[0]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[1]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[2]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[3]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[4]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[5]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[6]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[7]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[8]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[9]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[10]);
check_for_zeros(m);
m = _mm_aesenc_si128(m, key_schedule[11]);
check_for_zeros(m);
m = _mm_aesenclast_si128(m, key_schedule[12]);
_mm_storeu_si128((__m128i *)ciphertext, m);
return true;
}
static bool AES_192_Key_Expansion_save(
const unsigned char *userkey, __m128i *Key_Schedule,
std::pair<std::vector<uint8_t>, std::vector<uint8_t>> &saved_sbox_state) {
__m128i temp1, temp2, temp3;
temp1 = _mm_loadu_si128((__m128i *)userkey);
temp3 = _mm_loadu_si128((__m128i *)(userkey + 16));
Key_Schedule[0] = temp1;
Key_Schedule[1] = temp3;
check_for_zeros_and_save_KS_192(temp3, saved_sbox_state);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x1);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[1] =
(__m128i)_mm_shuffle_pd((__m128d)Key_Schedule[1], (__m128d)temp1, 0);
Key_Schedule[2] = (__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
check_for_zeros_and_save_KS_192(temp3, saved_sbox_state);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x2);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[3] = temp1;
Key_Schedule[4] = temp3;
check_for_zeros_and_save_KS_192(temp3, saved_sbox_state);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x4);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[4] =
(__m128i)_mm_shuffle_pd((__m128d)Key_Schedule[4], (__m128d)temp1, 0);
Key_Schedule[5] = (__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
check_for_zeros_and_save_KS_192(temp3, saved_sbox_state);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x8);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[6] = temp1;
Key_Schedule[7] = temp3;
check_for_zeros_and_save_KS_192(temp3, saved_sbox_state);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x10);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[7] =
(__m128i)_mm_shuffle_pd((__m128d)Key_Schedule[7], (__m128d)temp1, 0);
Key_Schedule[8] = (__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
check_for_zeros_and_save_KS_192(temp3, saved_sbox_state);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x20);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[9] = temp1;
Key_Schedule[10] = temp3;
check_for_zeros_and_save_KS_192(temp3, saved_sbox_state);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x40);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[10] =
(__m128i)_mm_shuffle_pd((__m128d)Key_Schedule[10], (__m128d)temp1, 0);
Key_Schedule[11] = (__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
check_for_zeros_and_save_KS_192(temp3, saved_sbox_state);
temp2 = _mm_aeskeygenassist_si128(temp3, 0x80);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
Key_Schedule[12] = temp1;
return true;
}
static bool aes_192_save_sbox_state_aesni(
const uint8_t *key, const uint8_t *plaintext, uint8_t *ciphertext,
std::pair<std::vector<uint8_t>, std::vector<uint8_t>> &saved_sbox_state) {
__m128i key_schedule[13];
uint8_t key_tmp[32] = {
0,
};
memcpy(key_tmp, key, 24);
if (!AES_192_Key_Expansion_save(key_tmp, key_schedule, saved_sbox_state))
return false;
for (size_t k = 0; k < AES192::NUM_BLOCKS; k++) {
__m128i m =
_mm_loadu_si128((__m128i *)(plaintext + k * AES192::BLOCK_SIZE));
m = _mm_xor_si128(m, key_schedule[0]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[1]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[2]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[3]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[4]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[5]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[6]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[7]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[8]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[9]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[10]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenc_si128(m, key_schedule[11]);
check_for_zeros_and_save(m, saved_sbox_state);
m = _mm_aesenclast_si128(m, key_schedule[12]);
_mm_storeu_si128((__m128i *)(ciphertext + k * AES192::BLOCK_SIZE), m);
}
return true;
}
bool aes_192(const std::vector<uint8_t> &key_in,
const std::vector<uint8_t> &plaintext_in,
std::vector<uint8_t> &ciphertext_out) {
assert(key_in.size() == AES192::KEY_SIZE);
assert(plaintext_in.size() == AES192::BLOCK_SIZE * AES192::NUM_BLOCKS);
ciphertext_out.resize(AES192::BLOCK_SIZE * AES192::NUM_BLOCKS);
bool ok =
aes_192_aesni(key_in.data(), plaintext_in.data(), ciphertext_out.data());
ok = aes_192_aesni(key_in.data(), plaintext_in.data() + AES192::BLOCK_SIZE,
ciphertext_out.data() + AES192::BLOCK_SIZE) &&
ok;
return ok;
}
std::pair<std::vector<uint8_t>, std::vector<uint8_t>>
aes_192_with_sbox_output(const std::vector<uint8_t> &key_in,
const std::vector<uint8_t> &plaintext_in,
std::vector<uint8_t> &ciphertext_out) {
assert(key_in.size() == AES192::KEY_SIZE);
assert(plaintext_in.size() == AES192::BLOCK_SIZE * AES192::NUM_BLOCKS);
std::pair<std::vector<uint8_t>, std::vector<uint8_t>> result;
result.first.reserve(AES192::NUM_SBOXES);
result.second.reserve(AES192::NUM_SBOXES);
ciphertext_out.resize(AES192::BLOCK_SIZE * AES192::NUM_BLOCKS);
bool ret = aes_192_save_sbox_state_aesni(key_in.data(), plaintext_in.data(),
ciphertext_out.data(), result);
(void)ret;
assert(ret);
return result;
}
void aes_192_s_shares(const std::vector<gsl::span<uint8_t>> &key_in,
const std::vector<gsl::span<uint8_t>> &t_shares,
const std::vector<uint8_t> &plaintext_in,
std::vector<gsl::span<uint8_t>> &ciphertext_out,
std::vector<gsl::span<uint8_t>> &s_shares) {
#pragma GCC diagnostic ignored "-Wignored-attributes"
typedef std::array<__m128i, 13> expanded_key_t;
#pragma GCC diagnostic pop
int num_parties = key_in.size();
std::vector<expanded_key_t> key_schedule(num_parties);
__m128i state;
int party = 0;
int sbox_index = 0;
// first party do normal sbox + rcon
{
uint8_t key_tmp[32] = {
0,
};
memcpy(key_tmp, key_in[party].data(), 24);
__m128i temp1, temp2, temp3;
temp1 = _mm_loadu_si128((__m128i *)key_tmp);
temp3 = _mm_loadu_si128((__m128i *)(key_tmp + 16));
key_schedule[party][0] = temp1;
key_schedule[party][1] = temp3;
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x1);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][1] = (__m128i)_mm_shuffle_pd(
(__m128d)key_schedule[party][1], (__m128d)temp1, 0);
key_schedule[party][2] =
(__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x2);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][3] = temp1;
key_schedule[party][4] = temp3;
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x4);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][4] = (__m128i)_mm_shuffle_pd(
(__m128d)key_schedule[party][4], (__m128d)temp1, 0);
key_schedule[party][5] =
(__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x8);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][6] = temp1;
key_schedule[party][7] = temp3;
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x10);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][7] = (__m128i)_mm_shuffle_pd(
(__m128d)key_schedule[party][7], (__m128d)temp1, 0);
key_schedule[party][8] =
(__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x20);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][9] = temp1;
key_schedule[party][10] = temp3;
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x40);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][10] = (__m128i)_mm_shuffle_pd(
(__m128d)key_schedule[party][10], (__m128d)temp1, 0);
key_schedule[party][11] =
(__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
AES_SBOX_AFFINE_CONST, 0x80);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][12] = temp1;
}
// other parties do not add rcon or affine part of sbox
for (party = 1; party < num_parties; party++) {
sbox_index = 0;
uint8_t key_tmp[32] = {
0,
};
memcpy(key_tmp, key_in[party].data(), 24);
__m128i temp1, temp2, temp3;
temp1 = _mm_loadu_si128((__m128i *)key_tmp);
temp3 = _mm_loadu_si128((__m128i *)(key_tmp + 16));
key_schedule[party][0] = temp1;
key_schedule[party][1] = temp3;
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
0x0, 0x0);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][1] = (__m128i)_mm_shuffle_pd(
(__m128d)key_schedule[party][1], (__m128d)temp1, 0);
key_schedule[party][2] =
(__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
0x0, 0x0);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][3] = temp1;
key_schedule[party][4] = temp3;
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
0x0, 0x0);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][4] = (__m128i)_mm_shuffle_pd(
(__m128d)key_schedule[party][4], (__m128d)temp1, 0);
key_schedule[party][5] =
(__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
0x0, 0x0);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][6] = temp1;
key_schedule[party][7] = temp3;
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
0x0, 0x0);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][7] = (__m128i)_mm_shuffle_pd(
(__m128d)key_schedule[party][7], (__m128d)temp1, 0);
key_schedule[party][8] =
(__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
0x0, 0x0);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][9] = temp1;
key_schedule[party][10] = temp3;
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
0x0, 0x0);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][10] = (__m128i)_mm_shuffle_pd(
(__m128d)key_schedule[party][10], (__m128d)temp1, 0);
key_schedule[party][11] =
(__m128i)_mm_shuffle_pd((__m128d)temp1, (__m128d)temp3, 1);
AES_192_key_exp_restore(temp2, temp3, s_shares, t_shares, party, sbox_index,
0x0, 0x0);
KEY_192_ASSIST(&temp1, &temp2, &temp3);
key_schedule[party][12] = temp1;
}
for (size_t k = 0; k < AES192::NUM_BLOCKS; k++) {
for (party = 0; party < num_parties; party++) {
sbox_index = 32 + k * 192;
if (party == 0)