iPXE
null_entropy.c
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1 /*
2  * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of the
7  * License, or any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  * 02110-1301, USA.
18  *
19  * You can also choose to distribute this program under the terms of
20  * the Unmodified Binary Distribution Licence (as given in the file
21  * COPYING.UBDL), provided that you have satisfied its requirements.
22  */
23 
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25 
26 /** @file
27  *
28  * Nonexistent entropy source
29  *
30  *
31  * This source provides no entropy and must NOT be used in a
32  * security-sensitive environment.
33  */
34 
35 #include <ipxe/entropy.h>
36 
void entropy_disable(void)
Disable entropy gathering.
min_entropy_t min_entropy_per_sample(void)
min-entropy per sample
int get_noise(noise_sample_t *noise)
Get noise sample.
FILE_LICENCE(GPL2_OR_LATER_OR_UBDL)
PROVIDE_ENTROPY_INLINE(null, min_entropy_per_sample)
int entropy_enable(void)
Enable entropy gathering.
Entropy source.