mirror of
https://github.com/henrydcase/pqc.git
synced 2024-11-24 00:11:27 +00:00
75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include "address.h"
|
|
#include "hash_state.h"
|
|
#include "params.h"
|
|
#include "thash.h"
|
|
|
|
#include "fips202.h"
|
|
|
|
/**
|
|
* Takes an array of inblocks concatenated arrays of SPX_N bytes.
|
|
*/
|
|
static void PQCLEAN_SPHINCSSHAKE256256FSIMPLE_CLEAN_thash(
|
|
unsigned char *out, unsigned char *buf,
|
|
const unsigned char *in, unsigned int inblocks,
|
|
const unsigned char *pub_seed, uint32_t addr[8]) {
|
|
|
|
memcpy(buf, pub_seed, SPX_N);
|
|
PQCLEAN_SPHINCSSHAKE256256FSIMPLE_CLEAN_addr_to_bytes(buf + SPX_N, addr);
|
|
memcpy(buf + SPX_N + SPX_ADDR_BYTES, in, inblocks * SPX_N);
|
|
|
|
shake256(out, SPX_N, buf, SPX_N + SPX_ADDR_BYTES + inblocks * SPX_N);
|
|
}
|
|
|
|
/* The wrappers below ensure that we use fixed-size buffers on the stack */
|
|
|
|
void PQCLEAN_SPHINCSSHAKE256256FSIMPLE_CLEAN_thash_1(
|
|
unsigned char *out, const unsigned char *in,
|
|
const unsigned char *pub_seed, uint32_t addr[8],
|
|
const hash_state *hash_state_seeded) {
|
|
|
|
unsigned char buf[SPX_N + SPX_ADDR_BYTES + 1 * SPX_N];
|
|
PQCLEAN_SPHINCSSHAKE256256FSIMPLE_CLEAN_thash(
|
|
out, buf, in, 1, pub_seed, addr);
|
|
|
|
(void)hash_state_seeded; /* Avoid unused parameter warning. */
|
|
}
|
|
|
|
void PQCLEAN_SPHINCSSHAKE256256FSIMPLE_CLEAN_thash_2(
|
|
unsigned char *out, const unsigned char *in,
|
|
const unsigned char *pub_seed, uint32_t addr[8],
|
|
const hash_state *hash_state_seeded) {
|
|
|
|
unsigned char buf[SPX_N + SPX_ADDR_BYTES + 2 * SPX_N];
|
|
PQCLEAN_SPHINCSSHAKE256256FSIMPLE_CLEAN_thash(
|
|
out, buf, in, 2, pub_seed, addr);
|
|
|
|
(void)hash_state_seeded; /* Avoid unused parameter warning. */
|
|
}
|
|
|
|
void PQCLEAN_SPHINCSSHAKE256256FSIMPLE_CLEAN_thash_WOTS_LEN(
|
|
unsigned char *out, const unsigned char *in,
|
|
const unsigned char *pub_seed, uint32_t addr[8],
|
|
const hash_state *hash_state_seeded) {
|
|
|
|
unsigned char buf[SPX_N + SPX_ADDR_BYTES + SPX_WOTS_LEN * SPX_N];
|
|
PQCLEAN_SPHINCSSHAKE256256FSIMPLE_CLEAN_thash(
|
|
out, buf, in, SPX_WOTS_LEN, pub_seed, addr);
|
|
|
|
(void)hash_state_seeded; /* Avoid unused parameter warning. */
|
|
}
|
|
|
|
void PQCLEAN_SPHINCSSHAKE256256FSIMPLE_CLEAN_thash_FORS_TREES(
|
|
unsigned char *out, const unsigned char *in,
|
|
const unsigned char *pub_seed, uint32_t addr[8],
|
|
const hash_state *hash_state_seeded) {
|
|
|
|
unsigned char buf[SPX_N + SPX_ADDR_BYTES + SPX_FORS_TREES * SPX_N];
|
|
PQCLEAN_SPHINCSSHAKE256256FSIMPLE_CLEAN_thash(
|
|
out, buf, in, SPX_FORS_TREES, pub_seed, addr);
|
|
|
|
(void)hash_state_seeded; /* Avoid unused parameter warning. */
|
|
}
|