blob: cf8326e5bfabf2b92a33af676fecd3f5acbde868 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/* Copyright 2015 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __EC_INCLUDE_TRNG_H
#define __EC_INCLUDE_TRNG_H
#include <common.h>
#include <stddef.h>
#include <stdint.h>
/**
* Initialize the true random number generator.
*
* Not supported by all platforms.
**/
void trng_init(void);
/**
* Shutdown the true random number generator.
*
* The opposite operation of trng_init(), disable the hardware resources
* used by the TRNG to save power.
*
* Not supported by all platforms.
**/
void trng_exit(void);
/**
* Retrieve a 32 bit random value.
*
* Not supported on all platforms.
**/
uint32_t trng_rand(void);
/**
* Output len random bytes into buffer.
*
* Not supported on all platforms.
**/
void trng_rand_bytes(void *buffer, size_t len);
#endif /* __EC_INCLUDE_TRNG_H */
|
