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/*
* Copyright (C) 2008-2011 Free Software Foundation, Inc.
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* The GnuTLS 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 3 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 program. If not, see <http://www.gnu.org/licenses/>
*
*/
/* Here is the libgcrypt random generator layer.
*/
#include <gnutls_int.h>
#include <gnutls_errors.h>
#include <gnutls_num.h>
#include <gnutls_mpi.h>
#include <gcrypt.h>
static int
wrap_gcry_rnd_init (void **ctx)
{
char c;
gcry_create_nonce (&c, 1);
gcry_randomize (&c, 1, GCRY_STRONG_RANDOM);
return 0;
}
static int
wrap_gcry_rnd (void *ctx, int level, void *data, size_t datasize)
{
if (level == GNUTLS_RND_NONCE)
gcry_create_nonce (data, datasize);
else
gcry_randomize (data, datasize, level);
return 0;
}
int crypto_rnd_prio = INT_MAX;
gnutls_crypto_rnd_st _gnutls_rnd_ops = {
.init = wrap_gcry_rnd_init,
.deinit = NULL,
.rnd = wrap_gcry_rnd,
};
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