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picnic3_simulate.c
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picnic3_simulate.c
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/*! @file picnic3_impl.c
* @brief This is the main file of the signature scheme for the Picnic3
* parameter sets.
*
* This file is part of the reference implementation of the Picnic signature scheme.
* See the accompanying documentation for complete details.
*
* The code is provided under the MIT license, see LICENSE for
* more details.
* SPDX-License-Identifier: MIT
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <assert.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if !defined(_MSC_VER)
#include <stdalign.h>
#endif
#include "compat.h"
#include "bitstream.h"
#include "io.h"
#include "picnic3_simulate.h"
#include "picnic3_types.h"
#if defined(WITH_OPT)
#include "simd.h"
#endif
#define picnic3_mpc_sbox_bitsliced(LOWMC_N, XOR, AND, SHL, SHR, bitmask_a, bitmask_b, bitmask_c) \
do { \
mzd_local_t a[1], b[1], c[1]; \
/* a */ \
AND(a, bitmask_a, statein); \
/* b */ \
AND(b, bitmask_b, statein); \
/* c */ \
AND(c, bitmask_c, statein); \
\
SHL(a, a, 2); \
SHL(b, b, 1); \
\
mzd_local_t t0[1], t1[1], t2[1]; \
\
mzd_local_t s_ab[1], s_bc[1], s_ca[1]; \
/* b & c */ \
AND(s_bc, b, c); \
/* c & a */ \
AND(s_ca, c, a); \
/* a & b */ \
AND(s_ab, a, b); \
for (int i = 0; i < 16; i++) { \
mzd_local_t tmp[1]; \
bitstream_t party_msgs = {{msgs->msgs[i]}, msgs->pos}; \
if (i == msgs->unopened) { \
/* we are in verify, just grab the broadcast s from the msgs array */ \
mzd_from_bitstream(&party_msgs, tmp, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
/* a */ \
AND(t0, bitmask_a, tmp); \
/* b */ \
AND(t1, bitmask_b, tmp); \
/* c */ \
AND(t2, bitmask_c, tmp); \
SHL(t0, t0, 2); \
SHL(t1, t1, 1); \
XOR(s_ab, t2, s_ab); \
XOR(s_bc, t1, s_bc); \
XOR(s_ca, t0, s_ca); \
\
continue; \
} \
bitstream_t party_tape = {{tapes->tape[i]}, tapes->pos}; \
/* make a mzd_local from tape[i] for input_masks */ \
mzd_local_t mask_a[1], mask_b[1], mask_c[1]; \
mzd_from_bitstream(&party_tape, tmp, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
/* a */ \
AND(mask_a, bitmask_a, tmp); \
/* b */ \
AND(mask_b, bitmask_b, tmp); \
/* c */ \
AND(mask_c, bitmask_c, tmp); \
SHL(mask_a, mask_a, 2); \
SHL(mask_b, mask_b, 1); \
\
/* make a mzd_local from tape[i] for and_helper */ \
mzd_local_t and_helper_ab[1], and_helper_bc[1], and_helper_ca[1]; \
mzd_from_bitstream(&party_tape, tmp, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
/* a */ \
AND(and_helper_ab, bitmask_c, tmp); \
/* b */ \
AND(and_helper_bc, bitmask_b, tmp); \
/* c */ \
AND(and_helper_ca, bitmask_a, tmp); \
SHL(and_helper_ca, and_helper_ca, 2); \
SHL(and_helper_bc, and_helper_bc, 1); \
\
/* s_ab */ \
AND(t0, a, mask_b); \
AND(t1, b, mask_a); \
XOR(t0, t0, t1); \
XOR(tmp, t0, and_helper_ab); \
XOR(s_ab, tmp, s_ab); \
/* s_bc */ \
AND(t0, b, mask_c); \
AND(t1, c, mask_b); \
XOR(t0, t0, t1); \
XOR(t0, t0, and_helper_bc); \
XOR(s_bc, t0, s_bc); \
\
SHR(t0, t0, 1); \
XOR(tmp, tmp, t0); \
/* s_ca */ \
AND(t0, c, mask_a); \
AND(t1, a, mask_c); \
XOR(t0, t0, t1); \
XOR(t0, t0, and_helper_ca); \
XOR(s_ca, t0, s_ca); \
\
SHR(t0, t0, 2); \
XOR(tmp, tmp, t0); \
mzd_to_bitstream(&party_msgs, tmp, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
} \
tapes->pos += LOWMC_N; \
tapes->pos += LOWMC_N; \
msgs->pos += LOWMC_N; \
\
/* (b & c) ^ a */ \
XOR(t0, s_bc, a); \
\
/* (c & a) ^ a ^ b */ \
XOR(a, a, b); \
XOR(t1, s_ca, a); \
\
/* (a & b) ^ a ^ b ^c */ \
XOR(t2, s_ab, a); \
XOR(t2, t2, c); \
\
SHR(t0, t0, 2); \
SHR(t1, t1, 1); \
\
XOR(t2, t2, t1); \
XOR(statein, t2, t0); \
} while (0)
#if defined(WITH_LOWMC_129_129_4)
#include "lowmc_129_129_4.h"
#endif
#if defined(WITH_LOWMC_192_192_4)
#include "lowmc_192_192_4.h"
#endif
#if defined(WITH_LOWMC_255_255_4)
#include "lowmc_255_255_4.h"
#endif
#if !defined(NO_UINT64_FALLBACK)
#if defined(WITH_LOWMC_129_129_4)
static void picnic3_mpc_sbox_uint64_lowmc_129_129_4(mzd_local_t* statein, randomTape_t* tapes,
msgs_t* msgs) {
picnic3_mpc_sbox_bitsliced(LOWMC_129_129_4_N, mzd_xor_uint64_192, mzd_and_uint64_192,
mzd_shift_left_uint64_192, mzd_shift_right_uint64_192,
mask_129_129_43_a, mask_129_129_43_b, mask_129_129_43_c);
}
#endif
#if defined(WITH_LOWMC_192_192_4)
static void picnic3_mpc_sbox_uint64_lowmc_192_192_4(mzd_local_t* statein, randomTape_t* tapes,
msgs_t* msgs) {
picnic3_mpc_sbox_bitsliced(LOWMC_192_192_4_N, mzd_xor_uint64_192, mzd_and_uint64_192,
mzd_shift_left_uint64_192, mzd_shift_right_uint64_192,
mask_192_192_64_a, mask_192_192_64_b, mask_192_192_64_c);
}
#endif
#if defined(WITH_LOWMC_255_255_4)
static void picnic3_mpc_sbox_uint64_lowmc_255_255_4(mzd_local_t* statein, randomTape_t* tapes,
msgs_t* msgs) {
picnic3_mpc_sbox_bitsliced(LOWMC_255_255_4_N, mzd_xor_uint64_256, mzd_and_uint64_256,
mzd_shift_left_uint64_256, mzd_shift_right_uint64_256,
mask_255_255_85_a, mask_255_255_85_b, mask_255_255_85_c);
}
#endif
#define IMPL uint64
/* PICNIC3_L1_FS */
#include "lowmc_129_129_4_fns_uint64.h"
#undef SIM_ONLINE
#define SIM_ONLINE lowmc_simulate_online_uint64_129_43
#include "picnic3_simulate.c.i"
/* PICNIC3_L3_FS */
#include "lowmc_192_192_4_fns_uint64.h"
#undef SIM_ONLINE
#define SIM_ONLINE lowmc_simulate_online_uint64_192_64
#include "picnic3_simulate.c.i"
/* PICNIC3_L5_FS */
#include "lowmc_255_255_4_fns_uint64.h"
#undef SIM_ONLINE
#define SIM_ONLINE lowmc_simulate_online_uint64_255_85
#include "picnic3_simulate.c.i"
#undef IMPL
#endif
#if defined(WITH_OPT)
#if defined(WITH_SSE2) || defined(WITH_NEON)
#define picnic3_mpc_sbox_bitsliced_mm128(LOWMC_N, XOR, AND, SHL, SHR, bitmask_a, bitmask_b, \
bitmask_c) \
do { \
word128 tmp[2], bitm_a[2], bitm_b[2], bitm_c[2]; \
tmp[0] = mm128_load(&statein->w64[0]); \
tmp[1] = mm128_load(&statein->w64[2]); \
bitm_a[0] = mm128_load(&bitmask_a->w64[0]); \
bitm_a[1] = mm128_load(&bitmask_a->w64[2]); \
bitm_b[0] = mm128_load(&bitmask_b->w64[0]); \
bitm_b[1] = mm128_load(&bitmask_b->w64[2]); \
bitm_c[0] = mm128_load(&bitmask_c->w64[0]); \
bitm_c[1] = mm128_load(&bitmask_c->w64[2]); \
\
word128 a[2]; \
word128 b[2]; \
word128 c[2]; \
/* a */ \
AND(a, bitm_a, tmp); \
/* b */ \
AND(b, bitm_b, tmp); \
/* c */ \
AND(c, bitm_c, tmp); \
\
SHL(a, a, 2); \
SHL(b, b, 1); \
\
word128 t0[2]; \
word128 t1[2]; \
word128 t2[2]; \
word128 s_ab[2]; \
word128 s_bc[2]; \
word128 s_ca[2]; \
\
/* b & c */ \
AND(s_bc, b, c); \
/* c & a */ \
AND(s_ca, c, a); \
/* a & b */ \
AND(s_ab, a, b); \
for (int i = 0; i < 16; i++) { \
bitstream_t party_msgs = {{msgs->msgs[i]}, msgs->pos}; \
if (i == msgs->unopened) { \
/* we are in verify, just grab the broadcast s from the msgs array */ \
w128_from_bitstream(&party_msgs, tmp, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
/* a */ \
AND(t0, bitm_a, tmp); \
/* b */ \
AND(t1, bitm_b, tmp); \
/* c */ \
AND(t2, bitm_c, tmp); \
SHL(t0, t0, 2); \
SHL(t1, t1, 1); \
XOR(s_ab, t2, s_ab); \
XOR(s_bc, t1, s_bc); \
XOR(s_ca, t0, s_ca); \
\
continue; \
} \
bitstream_t party_tape = {{tapes->tape[i]}, tapes->pos}; \
/* make a mzd_local from tape[i] for input_masks */ \
word128 mask_a[2]; \
word128 mask_b[2]; \
word128 mask_c[2]; \
w128_from_bitstream(&party_tape, tmp, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
/* a */ \
AND(mask_a, bitm_a, tmp); \
/* b */ \
AND(mask_b, bitm_b, tmp); \
/* c */ \
AND(mask_c, bitm_c, tmp); \
SHL(mask_a, mask_a, 2); \
SHL(mask_b, mask_b, 1); \
\
/* make a mzd_local from tape[i] for and_helper */ \
word128 and_helper_ab[2]; \
word128 and_helper_bc[2]; \
word128 and_helper_ca[2]; \
w128_from_bitstream(&party_tape, tmp, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
/* a */ \
AND(and_helper_ab, bitm_c, tmp); \
/* b */ \
AND(and_helper_bc, bitm_b, tmp); \
/* c */ \
AND(and_helper_ca, bitm_a, tmp); \
SHL(and_helper_ca, and_helper_ca, 2); \
SHL(and_helper_bc, and_helper_bc, 1); \
\
/* s_ab */ \
AND(t0, a, mask_b); \
AND(t1, b, mask_a); \
XOR(t0, t0, t1); \
XOR(tmp, t0, and_helper_ab); \
XOR(s_ab, tmp, s_ab); \
/* s_bc */ \
AND(t0, b, mask_c); \
AND(t1, c, mask_b); \
XOR(t0, t0, t1); \
XOR(t0, t0, and_helper_bc); \
XOR(s_bc, t0, s_bc); \
\
SHR(t0, t0, 1); \
XOR(tmp, tmp, t0); \
/* s_ca */ \
AND(t0, c, mask_a); \
AND(t1, a, mask_c); \
XOR(t0, t0, t1); \
XOR(t0, t0, and_helper_ca); \
XOR(s_ca, t0, s_ca); \
\
SHR(t0, t0, 2); \
XOR(tmp, tmp, t0); \
w128_to_bitstream(&party_msgs, tmp, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
} \
tapes->pos += LOWMC_N; \
tapes->pos += LOWMC_N; \
msgs->pos += LOWMC_N; \
\
/* (b & c) ^ a */ \
XOR(t0, s_bc, a); \
\
/* (c & a) ^ a ^ b */ \
XOR(a, a, b); \
XOR(t1, s_ca, a); \
\
/* (a & b) ^ a ^ b ^c */ \
XOR(t2, s_ab, a); \
XOR(t2, t2, c); \
\
SHR(t0, t0, 2); \
SHR(t1, t1, 1); \
\
XOR(t2, t2, t1); \
XOR(tmp, t2, t0); \
mm128_store(&statein->w64[0], tmp[0]); \
mm128_store(&statein->w64[2], tmp[1]); \
} while (0)
#if defined(WITH_LOWMC_129_129_4)
ATTR_TARGET_S128
static void picnic3_mpc_sbox_s128_lowmc_129_129_4(mzd_local_t* statein, randomTape_t* tapes,
msgs_t* msgs) {
picnic3_mpc_sbox_bitsliced_mm128(LOWMC_129_129_4_N, mm128_xor_256, mm128_and_256,
mm128_shift_left_256, mm128_shift_right_256, mask_129_129_43_a,
mask_129_129_43_b, mask_129_129_43_c);
}
#endif
#if defined(WITH_LOWMC_192_192_4)
ATTR_TARGET_S128
static void picnic3_mpc_sbox_s128_lowmc_192_192_4(mzd_local_t* statein, randomTape_t* tapes,
msgs_t* msgs) {
picnic3_mpc_sbox_bitsliced_mm128(LOWMC_192_192_4_N, mm128_xor_256, mm128_and_256,
mm128_shift_left_256, mm128_shift_right_256, mask_192_192_64_a,
mask_192_192_64_b, mask_192_192_64_c);
}
#endif
#if defined(WITH_LOWMC_255_255_4)
ATTR_TARGET_S128
static void picnic3_mpc_sbox_s128_lowmc_255_255_4(mzd_local_t* statein, randomTape_t* tapes,
msgs_t* msgs) {
picnic3_mpc_sbox_bitsliced_mm128(LOWMC_255_255_4_N, mm128_xor_256, mm128_and_256,
mm128_shift_left_256, mm128_shift_right_256, mask_255_255_85_a,
mask_255_255_85_b, mask_255_255_85_c);
}
#endif
#define IMPL s128
#undef FN_ATTR
#define FN_ATTR ATTR_TARGET_S128
/* PICNIC3_L1_FS */
#include "lowmc_129_129_4_fns_s128.h"
#undef SIM_ONLINE
#define SIM_ONLINE lowmc_simulate_online_s128_129_43
#include "picnic3_simulate.c.i"
/* PICNIC3_L3_FS */
#include "lowmc_192_192_4_fns_s128.h"
#undef SIM_ONLINE
#define SIM_ONLINE lowmc_simulate_online_s128_192_64
#include "picnic3_simulate.c.i"
/* PICNIC3_L5_FS */
#include "lowmc_255_255_4_fns_s128.h"
#undef SIM_ONLINE
#define SIM_ONLINE lowmc_simulate_online_s128_255_85
#include "picnic3_simulate.c.i"
#undef IMPL
#endif // SSE/NEON
#if defined(WITH_AVX2)
#define picnic3_mpc_sbox_bitsliced_mm256(LOWMC_N, bitmask_a, bitmask_b, bitmask_c) \
do { \
const word256 bitm_a = bitmask_a; \
const word256 bitm_b = bitmask_b; \
const word256 bitm_c = bitmask_c; \
\
word256 tmp = mm256_load(statein->w64); \
/* a */ \
word256 a = mm256_and(bitm_a, tmp); \
/* b */ \
word256 b = mm256_and(bitm_b, tmp); \
/* c */ \
word256 c = mm256_and(bitm_c, tmp); \
\
a = mm256_rotate_left(a, 2); \
b = mm256_rotate_left(b, 1); \
\
/* b & c */ \
word256 s_bc = mm256_and(b, c); \
/* c & a */ \
word256 s_ca = mm256_and(c, a); \
/* a & b */ \
word256 s_ab = mm256_and(a, b); \
word256 t0, t1, t2; \
for (int i = 0; i < 16; ++i) { \
bitstream_t party_msgs = {{msgs->msgs[i]}, msgs->pos}; \
if (i == msgs->unopened) { \
/* we are in verify, just grab the broadcast s from the msgs array */ \
tmp = w256_from_bitstream(&party_msgs, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
/* a */ \
t0 = mm256_and(bitm_a, tmp); \
/* b */ \
t1 = mm256_and(bitm_b, tmp); \
/* c */ \
t2 = mm256_and(bitm_c, tmp); \
t0 = mm256_rotate_left(t0, 2); \
t1 = mm256_rotate_left(t1, 1); \
s_ab = mm256_xor(t2, s_ab); \
s_bc = mm256_xor(t1, s_bc); \
s_ca = mm256_xor(t0, s_ca); \
\
continue; \
} \
bitstream_t party_tape = {{tapes->tape[i]}, tapes->pos}; \
/* make a mzd_local from tape[i] for input_masks */ \
tmp = w256_from_bitstream(&party_tape, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
/* a */ \
word256 mask_a = mm256_and(bitm_a, tmp); \
/* b */ \
word256 mask_b = mm256_and(bitm_b, tmp); \
/* c */ \
word256 mask_c = mm256_and(bitm_c, tmp); \
mask_a = mm256_rotate_left(mask_a, 2); \
mask_b = mm256_rotate_left(mask_b, 1); \
\
/* make a mzd_local from tape[i] for and_helper */ \
tmp = w256_from_bitstream(&party_tape, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
/* a */ \
word256 and_helper_ab = mm256_and(bitm_c, tmp); \
/* b */ \
word256 and_helper_bc = mm256_and(bitm_b, tmp); \
/* c */ \
word256 and_helper_ca = mm256_and(bitm_a, tmp); \
and_helper_ca = mm256_rotate_left(and_helper_ca, 2); \
and_helper_bc = mm256_rotate_left(and_helper_bc, 1); \
\
/* s_ab */ \
t0 = mm256_xor(mm256_and(a, mask_b), mm256_and(b, mask_a)); \
tmp = mm256_xor(t0, and_helper_ab); \
s_ab = mm256_xor(tmp, s_ab); \
/* s_bc */ \
t0 = mm256_xor(mm256_and(b, mask_c), mm256_and(c, mask_b)); \
t0 = mm256_xor(t0, and_helper_bc); \
s_bc = mm256_xor(t0, s_bc); \
\
tmp = mm256_xor(tmp, mm256_rotate_right(t0, 1)); \
/* s_ca */ \
t0 = mm256_xor(mm256_and(c, mask_a), mm256_and(a, mask_c)); \
t0 = mm256_xor(t0, and_helper_ca); \
s_ca = mm256_xor(t0, s_ca); \
\
tmp = mm256_xor(tmp, mm256_rotate_right(t0, 2)); \
w256_to_bitstream(&party_msgs, tmp, (LOWMC_N + 63) / (sizeof(uint64_t) * 8), LOWMC_N); \
} \
tapes->pos += LOWMC_N; \
tapes->pos += LOWMC_N; \
msgs->pos += LOWMC_N; \
\
/* (b & c) ^ a */ \
t0 = mm256_xor(s_bc, a); \
\
/* (c & a) ^ a ^ b */ \
a = mm256_xor(a, b); \
t1 = mm256_xor(s_ca, a); \
\
/* (a & b) ^ a ^ b ^c */ \
t2 = mm256_xor(mm256_xor(s_ab, a), c); \
\
t0 = mm256_rotate_right(t0, 2); \
t1 = mm256_rotate_right(t1, 1); \
\
mm256_store(statein->w64, mm256_xor(mm256_xor(t2, t1), t0)); \
} while (0)
#if defined(WITH_LOWMC_129_129_4)
ATTR_TARGET_AVX2
static void picnic3_mpc_sbox_s256_lowmc_129_129_4(mzd_local_t* statein, randomTape_t* tapes,
msgs_t* msgs) {
picnic3_mpc_sbox_bitsliced_mm256(LOWMC_129_129_4_N,
mm256_set_4(MASK_129_129_43_A_0, MASK_129_129_43_A_1,
MASK_129_129_43_A_2, MASK_129_129_43_A_3),
mm256_set_4(MASK_129_129_43_B_0, MASK_129_129_43_B_1,
MASK_129_129_43_B_2, MASK_129_129_43_B_3),
mm256_set_4(MASK_129_129_43_C_0, MASK_129_129_43_C_1,
MASK_129_129_43_C_2, MASK_129_129_43_C_3));
}
#endif
#if defined(WITH_LOWMC_192_192_4)
ATTR_TARGET_AVX2
static void picnic3_mpc_sbox_s256_lowmc_192_192_4(mzd_local_t* statein, randomTape_t* tapes,
msgs_t* msgs) {
picnic3_mpc_sbox_bitsliced_mm256(LOWMC_192_192_4_N,
mm256_set_4(MASK_192_192_64_A_0, MASK_192_192_64_A_1,
MASK_192_192_64_A_2, MASK_192_192_64_A_3),
mm256_set_4(MASK_192_192_64_B_0, MASK_192_192_64_B_1,
MASK_192_192_64_B_2, MASK_192_192_64_B_3),
mm256_set_4(MASK_192_192_64_C_0, MASK_192_192_64_C_1,
MASK_192_192_64_C_2, MASK_192_192_64_C_3));
}
#endif
#if defined(WITH_LOWMC_255_255_4)
ATTR_TARGET_AVX2
static void picnic3_mpc_sbox_s256_lowmc_255_255_4(mzd_local_t* statein, randomTape_t* tapes,
msgs_t* msgs) {
picnic3_mpc_sbox_bitsliced_mm256(LOWMC_255_255_4_N,
mm256_set_4(MASK_255_255_85_A_0, MASK_255_255_85_A_1,
MASK_255_255_85_A_2, MASK_255_255_85_A_3),
mm256_set_4(MASK_255_255_85_B_0, MASK_255_255_85_B_1,
MASK_255_255_85_B_2, MASK_255_255_85_B_3),
mm256_set_4(MASK_255_255_85_C_0, MASK_255_255_85_C_1,
MASK_255_255_85_C_2, MASK_255_255_85_C_3));
}
#endif
#define IMPL s256
#undef FN_ATTR
#define FN_ATTR ATTR_TARGET_AVX2
/* PICNIC3_L1_FS */
#include "lowmc_129_129_4_fns_s256.h"
#undef SIM_ONLINE
#define SIM_ONLINE lowmc_simulate_online_s256_129_43
#include "picnic3_simulate.c.i"
/* PICNIC3_L3_FS */
#include "lowmc_192_192_4_fns_s256.h"
#undef SIM_ONLINE
#define SIM_ONLINE lowmc_simulate_online_s256_192_64
#include "picnic3_simulate.c.i"
/* PICNIC3_L5_FS */
#include "lowmc_255_255_4_fns_s256.h"
#undef SIM_ONLINE
#define SIM_ONLINE lowmc_simulate_online_s256_255_85
#include "picnic3_simulate.c.i"
#undef IMPL
#endif // AVX2
#endif // WITH_OPT
lowmc_simulate_online_f lowmc_simulate_online_get_implementation(const lowmc_parameters_t* lowmc) {
const uint32_t lowmc_id = lowmc_get_id(lowmc);
#if defined(WITH_OPT)
#if defined(WITH_AVX2)
if (CPU_SUPPORTS_AVX2) {
switch (lowmc_id) {
#if defined(WITH_LOWMC_129_129_4)
case LOWMC_ID(129, 43):
return lowmc_simulate_online_s256_129_43;
#endif
#if defined(WITH_LOWMC_192_192_4)
case LOWMC_ID(192, 64):
return lowmc_simulate_online_s256_192_64;
#endif
#if defined(WITH_LOWMC_255_255_4)
case LOWMC_ID(255, 85):
return lowmc_simulate_online_s256_255_85;
#endif
}
}
#endif
#if defined(WITH_SSE2) || defined(WITH_NEON)
if (CPU_SUPPORTS_SSE2 || CPU_SUPPORTS_NEON) {
switch (lowmc_id) {
#if defined(WITH_LOWMC_129_129_4)
case LOWMC_ID(129, 43):
return lowmc_simulate_online_s128_129_43;
#endif
#if defined(WITH_LOWMC_192_192_4)
case LOWMC_ID(192, 64):
return lowmc_simulate_online_s128_192_64;
#endif
#if defined(WITH_LOWMC_255_255_4)
case LOWMC_ID(255, 85):
return lowmc_simulate_online_s128_255_85;
#endif
}
}
#endif
#endif
#if !defined(NO_UINT64_FALLBACK)
switch (lowmc_id) {
#if defined(WITH_LOWMC_129_129_4)
case LOWMC_ID(129, 43):
return lowmc_simulate_online_uint64_129_43;
#endif
#if defined(WITH_LOWMC_192_192_4)
case LOWMC_ID(192, 64):
return lowmc_simulate_online_uint64_192_64;
#endif
#if defined(WITH_LOWMC_255_255_4)
case LOWMC_ID(255, 85):
return lowmc_simulate_online_uint64_255_85;
#endif
}
#endif
UNREACHABLE;
return NULL;
}