cc2538: Add AES-CCM* driver
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
This commit is contained in:
Benoît Thébaudeau
parent
24cb05059a
commit
69eacbddbe
@ -54,7 +54,7 @@ CONTIKI_CPU_DIRS += ../cc253x/usb/common ../cc253x/usb/common/cdc-acm
|
||||
CONTIKI_CPU_SOURCEFILES += clock.c rtimer-arch.c uart.c watchdog.c
|
||||
CONTIKI_CPU_SOURCEFILES += nvic.c cpu.c sys-ctrl.c gpio.c ioc.c spi.c adc.c
|
||||
CONTIKI_CPU_SOURCEFILES += crypto.c aes.c ecb.c ccm.c sha256.c
|
||||
CONTIKI_CPU_SOURCEFILES += cc2538-aes-128.c
|
||||
CONTIKI_CPU_SOURCEFILES += cc2538-aes-128.c cc2538-ccm-star.c
|
||||
CONTIKI_CPU_SOURCEFILES += cc2538-rf.c udma.c lpm.c
|
||||
CONTIKI_CPU_SOURCEFILES += pka.c bignum-driver.c ecc-driver.c ecc-algorithm.c
|
||||
CONTIKI_CPU_SOURCEFILES += ecc-curve.c
|
||||
|
||||
130
cpu/cc2538/dev/cc2538-ccm-star.c
Normal file
130
cpu/cc2538/dev/cc2538-ccm-star.c
Normal file
@ -0,0 +1,130 @@
|
||||
/*
|
||||
* Copyright (c) 2015, 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-ccm-star
|
||||
* @{
|
||||
*
|
||||
* \file
|
||||
* Implementation of the AES-CCM* driver for the CC2538 SoC
|
||||
*/
|
||||
#include "contiki.h"
|
||||
#include "dev/ccm.h"
|
||||
#include "dev/cc2538-aes-128.h"
|
||||
#include "dev/cc2538-ccm-star.h"
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
/*---------------------------------------------------------------------------*/
|
||||
#define MODULE_NAME "cc2538-ccm-star"
|
||||
|
||||
#define CCM_STAR_LEN_LEN (CCM_NONCE_LEN_LEN - CCM_STAR_NONCE_LENGTH)
|
||||
|
||||
#define DEBUG 0
|
||||
#if DEBUG
|
||||
#define PRINTF(...) printf(__VA_ARGS__)
|
||||
#else
|
||||
#define PRINTF(...)
|
||||
#endif
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static uint8_t
|
||||
enable_crypto(void)
|
||||
{
|
||||
uint8_t enabled = CRYPTO_IS_ENABLED();
|
||||
if(!enabled) {
|
||||
crypto_enable();
|
||||
}
|
||||
return enabled;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
restore_crypto(uint8_t enabled)
|
||||
{
|
||||
if(!enabled) {
|
||||
crypto_disable();
|
||||
}
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
set_key(const uint8_t *key)
|
||||
{
|
||||
cc2538_aes_128_driver.set_key(key);
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
aead(const uint8_t *nonce, uint8_t *m, uint8_t m_len, const uint8_t *a,
|
||||
uint8_t a_len, uint8_t *result, uint8_t mic_len, int forward)
|
||||
{
|
||||
uint16_t cdata_len;
|
||||
uint8_t crypto_enabled, ret;
|
||||
|
||||
crypto_enabled = enable_crypto();
|
||||
|
||||
if(forward) {
|
||||
ret = ccm_auth_encrypt_start(CCM_STAR_LEN_LEN, CC2538_AES_128_KEY_AREA,
|
||||
nonce, a, a_len, m, m_len, m, mic_len, NULL);
|
||||
if(ret != CRYPTO_SUCCESS) {
|
||||
PRINTF("%s: ccm_auth_encrypt_start() error %u\n", MODULE_NAME, ret);
|
||||
restore_crypto(crypto_enabled);
|
||||
return;
|
||||
}
|
||||
|
||||
while(!ccm_auth_encrypt_check_status());
|
||||
ret = ccm_auth_encrypt_get_result(result, mic_len);
|
||||
if(ret != CRYPTO_SUCCESS) {
|
||||
PRINTF("%s: ccm_auth_encrypt_get_result() error %u\n", MODULE_NAME, ret);
|
||||
}
|
||||
} else {
|
||||
cdata_len = m_len + mic_len;
|
||||
ret = ccm_auth_decrypt_start(CCM_STAR_LEN_LEN, CC2538_AES_128_KEY_AREA,
|
||||
nonce, a, a_len, m, cdata_len, m, mic_len,
|
||||
NULL);
|
||||
if(ret != CRYPTO_SUCCESS) {
|
||||
PRINTF("%s: ccm_auth_decrypt_start() error %u\n", MODULE_NAME, ret);
|
||||
restore_crypto(crypto_enabled);
|
||||
return;
|
||||
}
|
||||
|
||||
while(!ccm_auth_decrypt_check_status());
|
||||
ret = ccm_auth_decrypt_get_result(m, cdata_len, result, mic_len);
|
||||
if(ret != CRYPTO_SUCCESS) {
|
||||
PRINTF("%s: ccm_auth_decrypt_get_result() error %u\n", MODULE_NAME, ret);
|
||||
}
|
||||
}
|
||||
|
||||
restore_crypto(crypto_enabled);
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
const struct ccm_star_driver cc2538_ccm_star_driver = {
|
||||
set_key,
|
||||
aead
|
||||
};
|
||||
|
||||
/** @} */
|
||||
55
cpu/cc2538/dev/cc2538-ccm-star.h
Normal file
55
cpu/cc2538/dev/cc2538-ccm-star.h
Normal file
@ -0,0 +1,55 @@
|
||||
/*
|
||||
* Copyright (c) 2015, 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-ccm-star CC2538 AES-CCM*
|
||||
*
|
||||
* AES-CCM* driver for the CC2538 SoC
|
||||
* @{
|
||||
*
|
||||
* \file
|
||||
* Header file of the AES-CCM* driver for the CC2538 SoC
|
||||
*/
|
||||
#ifndef CC2538_CCM_STAR_H_
|
||||
#define CC2538_CCM_STAR_H_
|
||||
|
||||
#include "lib/ccm-star.h"
|
||||
/*---------------------------------------------------------------------------*/
|
||||
extern const struct ccm_star_driver cc2538_ccm_star_driver;
|
||||
|
||||
#endif /* CC2538_CCM_STAR_H_ */
|
||||
|
||||
/**
|
||||
* @}
|
||||
* @}
|
||||
*/
|
||||
@ -96,14 +96,14 @@ ccm_auth_crypt_get_result(const void *cdata, uint16_t cdata_len,
|
||||
/* Check MIC */
|
||||
data_len = cdata_len - mic_len;
|
||||
if(rom_util_memcmp(tag, &((const uint8_t *)cdata)[data_len], mic_len)) {
|
||||
return AES_AUTHENTICATION_FAILED;
|
||||
ret = AES_AUTHENTICATION_FAILED;
|
||||
}
|
||||
}
|
||||
|
||||
/* Copy tag to MIC */
|
||||
rom_util_memcpy(mic, tag, mic_len);
|
||||
|
||||
return CRYPTO_SUCCESS;
|
||||
return ret;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
uint8_t
|
||||
|
||||
@ -512,6 +512,10 @@ typedef uint32_t rtimer_clock_t;
|
||||
#ifndef AES_128_CONF
|
||||
#define AES_128_CONF cc2538_aes_128_driver /**< AES-128 driver */
|
||||
#endif
|
||||
|
||||
#ifndef CCM_STAR_CONF
|
||||
#define CCM_STAR_CONF cc2538_ccm_star_driver /**< AES-CCM* driver */
|
||||
#endif
|
||||
/** @} */
|
||||
/*---------------------------------------------------------------------------*/
|
||||
|
||||
|
||||
@ -580,6 +580,10 @@ typedef uint32_t rtimer_clock_t;
|
||||
#ifndef AES_128_CONF
|
||||
#define AES_128_CONF cc2538_aes_128_driver /**< AES-128 driver */
|
||||
#endif
|
||||
|
||||
#ifndef CCM_STAR_CONF
|
||||
#define CCM_STAR_CONF cc2538_ccm_star_driver /**< AES-CCM* driver */
|
||||
#endif
|
||||
/** @} */
|
||||
/*---------------------------------------------------------------------------*/
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user