98 lines
3.7 KiB
C
98 lines
3.7 KiB
C
/*
|
|
* Copyright (c) 2016, Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
/**
|
|
* \addtogroup cc2538-aes
|
|
* @{
|
|
*
|
|
* \defgroup cc2538-cbc-mac cc2538 AES-CBC-MAC
|
|
*
|
|
* Driver for the cc2538 AES-CBC-MAC mode of the security core
|
|
* @{
|
|
*
|
|
* \file
|
|
* Header file for the cc2538 AES-CBC-MAC driver
|
|
*/
|
|
#ifndef CBC_MAC_H_
|
|
#define CBC_MAC_H_
|
|
|
|
#include "contiki.h"
|
|
#include "dev/aes.h"
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
/*---------------------------------------------------------------------------*/
|
|
/** \name AES-CBC-MAC constants
|
|
* @{
|
|
*/
|
|
#define CBC_MAC_MAC_LEN AES_TAG_LEN
|
|
/** @} */
|
|
/*---------------------------------------------------------------------------*/
|
|
/** \name AES-CBC-MAC functions
|
|
* @{
|
|
*/
|
|
|
|
/** \brief Starts a CBC-MAC authentication operation
|
|
* \param key_area Area in Key RAM where the key is stored (0 to
|
|
* \c AES_KEY_AREAS - 1)
|
|
* \param mdata Pointer to message to authenticate in SRAM
|
|
* \param mdata_len Length of message to authenticate in octets
|
|
* \param process Process to be polled upon completion of the operation, or
|
|
* \c NULL
|
|
* \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES/CBC-MAC error code
|
|
* \warning CBC-MAC is not secure for variable-length messages. There are a few
|
|
* workarounds that can be implemented by the caller, like prepending the
|
|
* message length to the first block of the message before passing it.
|
|
*/
|
|
uint8_t cbc_mac_auth_start(uint8_t key_area, const void *mdata,
|
|
uint16_t mdata_len, struct process *process);
|
|
|
|
/** \brief Checks the status of the CBC-MAC authentication operation
|
|
* \retval false Result not yet available, and no error occurred
|
|
* \retval true Result available, or error occurred
|
|
*/
|
|
#define cbc_mac_auth_check_status aes_auth_crypt_check_status
|
|
|
|
/** \brief Gets the result of the CBC-MAC authentication operation
|
|
* \param mac_in Pointer to 128-bit input MAC, or \c NULL
|
|
* \param mac_out Pointer to 128-bit output MAC, or \c NULL
|
|
* \return \c CRYPTO_SUCCESS if successful, or CRYPTO/AES/CBC-MAC error code
|
|
* \note This function must be called only after \c cbc_mac_auth_start().
|
|
*/
|
|
uint8_t cbc_mac_auth_get_result(const void *mac_in, void *mac_out);
|
|
|
|
/** @} */
|
|
|
|
#endif /* CBC_MAC_H_ */
|
|
|
|
/**
|
|
* @}
|
|
* @}
|
|
*/
|