pqc/crypto_sign/sphincs-shake256-256s-robust/avx2/hash_shake256x4.c
Thom Wiggers a655ec8a9d SPHINCS+ optimized implementations (#253)
* Add state destroy to SHA2 API

* Include optimized SPHINCS+ implementations

I've generated new implementations from the sphincsplus repository.

* Don't destroy sha256ctx after finalize

* Attempt to shut up MSVC

* Make sure to drop errors in rmtree
2019-12-12 14:29:29 +01:00

39 lines
1.8 KiB
C

#include <stdint.h>
#include <string.h>
#include "address.h"
#include "fips202x4.h"
#include "hashx4.h"
#include "params.h"
/*
* 4-way parallel version of prf_addr; takes 4x as much input and output
*/
void PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_prf_addrx4(unsigned char *out0,
unsigned char *out1,
unsigned char *out2,
unsigned char *out3,
const unsigned char *key,
const uint32_t addrx4[4 * 8],
const hash_state *state_seeded) {
unsigned char bufx4[4 * (PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_ADDR_BYTES)];
unsigned int j;
for (j = 0; j < 4; j++) {
memcpy(bufx4 + j * (PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_ADDR_BYTES), key, PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N);
PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_addr_to_bytes(bufx4 + PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N + j * (PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_ADDR_BYTES), addrx4 + j * 8);
}
PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_shake256x4(out0,
out1,
out2,
out3, PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N,
bufx4 + 0 * (PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_ADDR_BYTES),
bufx4 + 1 * (PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_ADDR_BYTES),
bufx4 + 2 * (PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_ADDR_BYTES),
bufx4 + 3 * (PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_ADDR_BYTES), PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_N + PQCLEAN_SPHINCSSHAKE256256SROBUST_AVX2_ADDR_BYTES);
/* Avoid unused parameter warning */
(void)state_seeded;
}