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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2025 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/crypto.h>
#include <grub/dl.h>
GRUB_MOD_LICENSE ("GPLv3+");
gcry_err_code_t
grub_crypto_argon2 (int subalgo,
const unsigned long *param, unsigned int paramlen,
const void *password, grub_size_t passwordlen,
const void *salt, grub_size_t saltlen,
const void *key, grub_size_t keylen,
const void *ad, grub_size_t adlen,
grub_size_t resultlen, void *result)
{
gcry_kdf_hd_t hd = {0};
gpg_err_code_t err;
if (saltlen == 0)
return GPG_ERR_INV_VALUE;
err = _gcry_kdf_open (&hd, GRUB_GCRY_KDF_ARGON2, subalgo, param, paramlen,
password, passwordlen, salt, saltlen, key, keylen,
ad, adlen);
if (err != GPG_ERR_NO_ERROR)
return err;
err = _gcry_kdf_compute (hd, NULL);
if (err == GPG_ERR_NO_ERROR)
err = _gcry_kdf_final (hd, resultlen, result);
_gcry_kdf_close (hd);
return err;
}
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