pqc/crypto_sign/sphincs-shake256-192s-simple/avx2/thash_shake256_simplex4.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

48 lines
4.4 KiB
C

#include <stdint.h>
#include <string.h>
#include "address.h"
#include "params.h"
#include "thashx4.h"
#include "fips202x4.h"
/**
* 4-way parallel version of thash; takes 4x as much input and output
*/
#define thashx4_variant(name, inblocks) \
void PQCLEAN_SPHINCSSHAKE256192SSIMPLE_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_SPHINCSSHAKE256192SSIMPLE_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_BYTES + (inblocks)*PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N]; \
unsigned char buf1[PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_BYTES + (inblocks)*PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N]; \
unsigned char buf2[PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_BYTES + (inblocks)*PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N]; \
unsigned char buf3[PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_BYTES + (inblocks)*PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N]; \
\
memcpy(buf0, pub_seed, PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N); \
memcpy(buf1, pub_seed, PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N); \
memcpy(buf2, pub_seed, PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N); \
memcpy(buf3, pub_seed, PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N); \
PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_addr_to_bytes(buf0 + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N, addrx4 + 0 * 8); \
PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_addr_to_bytes(buf1 + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N, addrx4 + 1 * 8); \
PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_addr_to_bytes(buf2 + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N, addrx4 + 2 * 8); \
PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_addr_to_bytes(buf3 + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N, addrx4 + 3 * 8); \
memcpy(buf0 + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_BYTES, in0, (inblocks)*PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N); \
memcpy(buf1 + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_BYTES, in1, (inblocks)*PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N); \
memcpy(buf2 + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_BYTES, in2, (inblocks)*PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N); \
memcpy(buf3 + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_BYTES, in3, (inblocks)*PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N); \
\
PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_shake256x4(out0, out1, out2, out3, PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N, buf0, buf1, buf2, buf3, \
PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N + PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_BYTES + (inblocks)*PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_N); \
\
/* Avoid unused parameter warning */ \
(void)state_seeded; \
}
thashx4_variant(1, 1)
thashx4_variant(2, 2)
thashx4_variant(WOTS_LEN, PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_WOTS_LEN)
thashx4_variant(FORS_TREES, PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_FORS_TREES)