mirror of
https://github.com/xemu-project/xemu.git
synced 2024-12-05 02:06:40 +00:00
59b060be18
The qcrypto_pbkdf_count_iters method uses a 64 bit int but then checks its value against INT32_MAX before returning it. This bounds check is premature, because the calling code may well scale the iteration count by some value. It is thus better to return a 64-bit integer and let the caller do range checking. For consistency the qcrypto_pbkdf method is also changed to accept a 64bit int, though this is somewhat academic since nettle is limited to taking an 'int' while gcrypt is limited to taking a 'long int'. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/*
|
|
* QEMU Crypto PBKDF support (Password-Based Key Derivation Function)
|
|
*
|
|
* Copyright (c) 2015-2016 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qapi/error.h"
|
|
#include "crypto/pbkdf.h"
|
|
|
|
bool qcrypto_pbkdf2_supports(QCryptoHashAlgorithm hash G_GNUC_UNUSED)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
int qcrypto_pbkdf2(QCryptoHashAlgorithm hash G_GNUC_UNUSED,
|
|
const uint8_t *key G_GNUC_UNUSED,
|
|
size_t nkey G_GNUC_UNUSED,
|
|
const uint8_t *salt G_GNUC_UNUSED,
|
|
size_t nsalt G_GNUC_UNUSED,
|
|
uint64_t iterations G_GNUC_UNUSED,
|
|
uint8_t *out G_GNUC_UNUSED,
|
|
size_t nout G_GNUC_UNUSED,
|
|
Error **errp)
|
|
{
|
|
error_setg_errno(errp, ENOSYS,
|
|
"No crypto library supporting PBKDF in this build");
|
|
return -1;
|
|
}
|