balloon-sha512.c

   1 /* balloon-sha512.c
   2
   3    Balloon password-hashing algorithm.
   4
   5    Copyright (C) 2022 Zoltan Fridrich
   6    Copyright (C) 2022 Red Hat, Inc.
   7
   8    This file is part of GNU Nettle.
   9
  10    GNU Nettle is free software: you can redistribute it and/or
  11    modify it under the terms of either:
  12
  13      * the GNU Lesser General Public License as published by the Free
  14        Software Foundation; either version 3 of the License, or (at your
  15        option) any later version.
  16
  17    or
  18
  19      * the GNU General Public License as published by the Free
  20        Software Foundation; either version 2 of the License, or (at your
  21        option) any later version.
  22
  23    or both in parallel, as here.
  24
  25    GNU Nettle is distributed in the hope that it will be useful,
  26    but WITHOUT ANY WARRANTY; without even the implied warranty of
  27    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  28    General Public License for more details.
  29
  30    You should have received copies of the GNU General Public License and
  31    the GNU Lesser General Public License along with this program.  If
  32    not, see http://www.gnu.org/licenses/.
  33 */
  34
  35 #if HAVE_CONFIG_H
  36 # include "config.h"
  37 #endif
  38
  39 #include "balloon.h"
  40 #include "sha2.h"
  41
  42 void
  43 balloon_sha512(size_t s_cost, size_t t_cost,
  44                size_t passwd_length, const uint8_t *passwd,
  45                size_t salt_length, const uint8_t *salt,
  46                uint8_t *scratch, uint8_t *dst)
  47 {
  48   struct sha512_ctx ctx;
  49   sha512_init(&ctx);
  50   balloon(&ctx,
  51           (nettle_hash_update_func*)sha512_update,
  52           (nettle_hash_digest_func*)sha512_digest,
  53           SHA512_DIGEST_SIZE, s_cost, t_cost,
  54           passwd_length, passwd, salt_length, salt, scratch, dst);
  55 }