blob: 651f36598832ad50ab517d1bc23c3e8cd9524d7a (
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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/** @defgroup crypto_file CRYPTO
*
* @ingroup STM32F4xx
*
* @brief <b>libopencm3 STM32F4xx CRYPTO</b>
*
* @version 1.0.0
*
* @date 18 Jun 2013
*
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2011 Stephen Caudle <scaudle@doceme.com>
*
* 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 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 library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/stm32/crypto.h>
/**@{*/
/*---------------------------------------------------------------------------*/
/** @brief Set the MAC algorithm
*/
void crypto_set_mac_algorithm(enum crypto_mode_mac mode)
{
crypto_set_algorithm((enum crypto_mode) mode);
}
/**
* @brief Swap context
*
*@param[in] buf uint32_t Memory space for swap (16 items length)
*/
void crypto_context_swap(uint32_t *buf)
{
int i;
/* Apply exact order of ? */
for (i = 0; i < 8; i++) {
uint32_t save = *buf;
*buf++ = CRYP_CSGCMCCMR(i);
CRYP_CSGCMCCMR(i) = save;
};
for (i = 0; i < 8; i++) {
uint32_t save = *buf;
*buf++ = CRYP_CSGCMR(i);
CRYP_CSGCMCCMR(i) = save;
};
}
/**@}*/
|
