67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
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/** @defgroup crypto_file CRYPTO
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*
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* @ingroup STM32F4xx
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*
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* @brief <b>libopencm3 STM32F4xx CRYPTO</b>
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*
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* @version 1.0.0
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*
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* @date 18 Jun 2013
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*
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*/
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2011 Stephen Caudle <scaudle@doceme.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/stm32/crypto.h>
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/**@{*/
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/*---------------------------------------------------------------------------*/
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/** @brief Set the MAC algorithm
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*/
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void crypto_set_mac_algorithm(enum crypto_mode_mac mode)
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{
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crypto_set_algorithm((enum crypto_mode) mode);
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}
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/**
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* @brief Swap context
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*
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*@param[in] buf uint32_t Memory space for swap (16 items length)
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*/
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void crypto_context_swap(uint32_t *buf)
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{
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int i;
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/* Apply exact order of ? */
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for (i = 0; i < 8; i++) {
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uint32_t save = *buf;
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*buf++ = CRYP_CSGCMCCMR(i);
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CRYP_CSGCMCCMR(i) = save;
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};
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for (i = 0; i < 8; i++) {
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uint32_t save = *buf;
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*buf++ = CRYP_CSGCMR(i);
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CRYP_CSGCMCCMR(i) = save;
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};
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}
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/**@}*/
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