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pqcrypto/crypto_sign/sphincs-shake256-192s-robust/avx2/thash_shake256_robustx4.c

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#include <stdint.h>
#include <string.h>
#include "thashx4.h"
#include "address.h"
#include "params.h"
#include "fips202x4.h"
/**
* 4-way parallel version of thash; takes 4x as much input and output
*/
#define thash_variant(name, inblocks) \
void PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_thashx4_##name(unsigned char *out0, \
unsigned char *out1, \
unsigned char *out2, \
unsigned char *out3, \
const unsigned char *in0, \
const unsigned char *in1, \
const unsigned char *in2, \
const unsigned char *in3, \
const unsigned char *pub_seed, uint32_t addrx4[4*8], \
const hash_state *state_seeded) \
{ \
unsigned char buf0[PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_BYTES + (inblocks)*PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N]; \
unsigned char buf1[PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_BYTES + (inblocks)*PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N]; \
unsigned char buf2[PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_BYTES + (inblocks)*PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N]; \
unsigned char buf3[PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_BYTES + (inblocks)*PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N]; \
unsigned char bitmask0[(inblocks) * PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N]; \
unsigned char bitmask1[(inblocks) * PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N]; \
unsigned char bitmask2[(inblocks) * PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N]; \
unsigned char bitmask3[(inblocks) * PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N]; \
unsigned int i; \
\
memcpy(buf0, pub_seed, PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N); \
memcpy(buf1, pub_seed, PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N); \
memcpy(buf2, pub_seed, PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N); \
memcpy(buf3, pub_seed, PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N); \
PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_addr_to_bytes(buf0 + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N, addrx4 + 0*8); \
PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_addr_to_bytes(buf1 + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N, addrx4 + 1*8); \
PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_addr_to_bytes(buf2 + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N, addrx4 + 2*8); \
PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_addr_to_bytes(buf3 + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N, addrx4 + 3*8); \
\
PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_shake256x4(bitmask0, bitmask1, bitmask2, bitmask3, (inblocks) * PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N, \
buf0, buf1, buf2, buf3, PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_BYTES); \
\
for (i = 0; i < (inblocks) * PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N; i++) { \
buf0[PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_BYTES + i] = in0[i] ^ bitmask0[i]; \
buf1[PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_BYTES + i] = in1[i] ^ bitmask1[i]; \
buf2[PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_BYTES + i] = in2[i] ^ bitmask2[i]; \
buf3[PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_BYTES + i] = in3[i] ^ bitmask3[i]; \
} \
\
PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_shake256x4( \
out0, out1, out2, out3, PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N, \
buf0, buf1, buf2, buf3, PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_BYTES + (inblocks)*PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_N); \
\
/* avoid unused parameter warning */ \
(void)state_seeded; \
}
thash_variant(1, 1)
thash_variant(2, 2)
thash_variant(WOTS_LEN, PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_WOTS_LEN)
thash_variant(FORS_TREES, PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_FORS_TREES)