chromium/third_party/boringssl/src/crypto/spx/thash.c

/* Copyright (c) 2023, Google LLC
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */

#include <openssl/base.h>

#include <assert.h>
#include <stdio.h>
#include <string.h>

#include <openssl/sha.h>

#include "./params.h"
#include "./spx_util.h"
#include "./thash.h"

static void spx_thash(uint8_t *output, const uint8_t *input,
                      size_t input_blocks, const uint8_t pk_seed[SPX_N],
                      uint8_t addr[32]) { … }

void spx_thash_f(uint8_t *output, const uint8_t input[SPX_N],
                 const uint8_t pk_seed[SPX_N], uint8_t addr[32]) { … }

void spx_thash_h(uint8_t *output, const uint8_t input[2 * SPX_N],
                 const uint8_t pk_seed[SPX_N], uint8_t addr[32]) { … }

void spx_thash_hmsg(uint8_t *output, const uint8_t r[SPX_N],
                    const uint8_t pk_seed[SPX_N], const uint8_t pk_root[SPX_N],
                    const uint8_t *msg, size_t msg_len) { … }

void spx_thash_prf(uint8_t *output, const uint8_t pk_seed[SPX_N],
                   const uint8_t sk_seed[SPX_N], uint8_t addr[32]) { … }

void spx_thash_prfmsg(uint8_t *output, const uint8_t sk_prf[SPX_N],
                      const uint8_t opt_rand[SPX_N], const uint8_t *msg,
                      size_t msg_len) { … }

void spx_thash_tl(uint8_t *output, const uint8_t input[SPX_WOTS_BYTES],
                  const uint8_t pk_seed[SPX_N], uint8_t addr[32]) { … }

void spx_thash_tk(uint8_t *output, const uint8_t input[SPX_FORS_TREES * SPX_N],
                  const uint8_t pk_seed[SPX_N], uint8_t addr[32]) { … }