67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/** @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;
|
|
};
|
|
}
|
|
|
|
/**@}*/
|