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osd-contiki/examples/cc2538dk/crypto/ccm-test.c
Benoît Thébaudeau b92a5afcc4 cc2538: ccm: Make it possible to use the interrupt 
Using the AES interrupt allows the user process not to waste time
polling for the completion of the operation. This time can be used by
the user process to do something else, or to let the system enter PM0.

Since the system is now free to perform various operations during a
crypto operation, a protection of the crypto resource is added, and PM1+
is prohibited in order not to stall crypto operations.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-06-02 21:41:07 +02:00

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/*
* Original file:
* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
* All rights reserved.
*
* Port to Contiki:
* Copyright (c) 2013, ADVANSEE - http://www.advansee.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-examples
* @{
*
* \defgroup cc2538-ccm-test cc2538dk AES-CCM Test Project
*
* AES-CCM access example for CC2538 on SmartRF06EB.
*
* This example shows how AES-CCM should be used. The example also verifies
* the AES-CCM functionality.
*
* @{
*
* \file
* Example demonstrating AES-CCM on the cc2538dk platform
*/
#include "contiki.h"
#include "sys/rtimer.h"
#include "dev/rom-util.h"
#include "dev/ccm.h"
#include <stdbool.h>
#include <stdio.h>
#include <stdint.h>
/*---------------------------------------------------------------------------*/
PROCESS(ccm_test_process, "ccm test process");
AUTOSTART_PROCESSES(&ccm_test_process);
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(ccm_test_process, ev, data)
{
static const char *const str_res[] = {
"success",
"invalid param",
"NULL error",
"resource in use",
"DMA bus error",
"keystore read error",
"keystore write error",
"authentication failed"
};
static struct {
bool encrypt;
uint8_t len_len;
uint8_t key[16];
uint8_t key_area;
uint8_t nonce[13];
uint8_t adata[26];
uint16_t adata_len;
uint8_t mdata[24];
uint16_t mdata_len;
uint8_t mic[8];
uint8_t mic_len;
uint8_t expected[24];
} vectors[] = {
{
true, /* encrypt */
2, /* len_len */
{ 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* key */
0, /* key_area */
{ 0x00, 0x00, 0xf0, 0xe0, 0xd0, 0xc0, 0xb0, 0xa0,
0x00, 0x00, 0x00, 0x00, 0x05 }, /* nonce */
{}, /* adata */
0, /* adata_len */
{ 0x14, 0xaa, 0xbb, 0x00, 0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f }, /* mdata */
20, /* mdata_len */
{}, /* mic */
0, /* mic_len */
{ 0x92, 0xe8, 0xad, 0xca, 0x53, 0x81, 0xbf, 0xd0,
0x5b, 0xdd, 0xf3, 0x61, 0x09, 0x09, 0x82, 0xe6,
0x2c, 0x61, 0x01, 0x4e } /* expected */
}, {
true, /* encrypt */
2, /* len_len */
{ 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf }, /* key */
0, /* key_area */
{ 0xac, 0xde, 0x48, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x05, 0x02 }, /* nonce */
{ 0x08, 0xd0, 0x84, 0x21, 0x43, 0x01, 0x00, 0x00,
0x00, 0x00, 0x48, 0xde, 0xac, 0x02, 0x05, 0x00,
0x00, 0x00, 0x55, 0xcf, 0x00, 0x00, 0x51, 0x52,
0x53, 0x54 }, /* adata */
26, /* adata_len */
{}, /* mdata */
0, /* mdata_len */
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
8, /* mic_len */
{ 0x22, 0x3b, 0xc1, 0xec, 0x84, 0x1a, 0xb5, 0x53 } /* expected */
}, {
true, /* encrypt */
2, /* len_len */
{ 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* key */
0, /* key_area */
{ 0x00, 0x00, 0xf0, 0xe0, 0xd0, 0xc0, 0xb0, 0xa0,
0x00, 0x00, 0x00, 0x00, 0x05 }, /* nonce */
{ 0x69, 0x98, 0x03, 0x33, 0x63, 0xbb, 0xaa, 0x01,
0x00, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x03 }, /* adata */
15, /* adata_len */
{ 0x14, 0xaa, 0xbb, 0x00, 0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f }, /* mdata */
20, /* mdata_len */
{ 0x00, 0x00, 0x00, 0x00 }, /* mic */
4, /* mic_len */
{ 0x92, 0xe8, 0xad, 0xca, 0x53, 0x81, 0xbf, 0xd0,
0x5b, 0xdd, 0xf3, 0x61, 0x09, 0x09, 0x82, 0xe6,
0x2c, 0x61, 0x01, 0x4e, 0x7b, 0x34, 0x4f, 0x09 } /* expected */
}, {
false, /* decrypt */
2, /* len_len */
{ 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* key */
0, /* key_area */
{ 0x00, 0x00, 0xf0, 0xe0, 0xd0, 0xc0, 0xb0, 0xa0,
0x00, 0x00, 0x00, 0x00, 0x05 }, /* nonce */
{}, /* adata */
0, /* adata_len */
{ 0x92, 0xe8, 0xad, 0xca, 0x53, 0x81, 0xbf, 0xd0,
0x5b, 0xdd, 0xf3, 0x61, 0x09, 0x09, 0x82, 0xe6,
0x2c, 0x61, 0x01, 0x4e }, /* mdata */
20, /* mdata_len */
{}, /* mic */
0, /* mic_len */
{ 0x14, 0xaa, 0xbb, 0x00, 0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f } /* expected */
}, {
false, /* decrypt */
2, /* len_len */
{ 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf }, /* key */
0, /* key_area */
{ 0xac, 0xde, 0x48, 0x00, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x05, 0x02 }, /* nonce */
{ 0x08, 0xd0, 0x84, 0x21, 0x43, 0x01, 0x00, 0x00,
0x00, 0x00, 0x48, 0xde, 0xac, 0x02, 0x05, 0x00,
0x00, 0x00, 0x55, 0xcf, 0x00, 0x00, 0x51, 0x52,
0x53, 0x54 }, /* adata */
26, /* adata_len */
{ 0x22, 0x3b, 0xc1, 0xec, 0x84, 0x1a, 0xb5, 0x53 }, /* mdata */
8, /* mdata_len */
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* mic */
8, /* mic_len */
{} /* expected */
}, {
false, /* decrypt */
2, /* len_len */
{ 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* key */
0, /* key_area */
{ 0x00, 0x00, 0xf0, 0xe0, 0xd0, 0xc0, 0xb0, 0xa0,
0x00, 0x00, 0x00, 0x00, 0x05 }, /* nonce */
{ 0x69, 0x98, 0x03, 0x33, 0x63, 0xbb, 0xaa, 0x01,
0x00, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x03 }, /* adata */
15, /* adata_len */
{ 0x92, 0xe8, 0xad, 0xca, 0x53, 0x81, 0xbf, 0xd0,
0x5b, 0xdd, 0xf3, 0x61, 0x09, 0x09, 0x82, 0xe6,
0x2c, 0x61, 0x01, 0x4e, 0x7b, 0x34, 0x4f, 0x09 }, /* mdata */
24, /* mdata_len */
{ 0x00, 0x00, 0x00, 0x00 }, /* mic */
4, /* mic_len */
{ 0x14, 0xaa, 0xbb, 0x00, 0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f } /* expected */
}
};
static int i;
static uint8_t ret;
static rtimer_clock_t time, time2, total_time;
PROCESS_BEGIN();
puts("-----------------------------------------\n"
"Initializing cryptoprocessor...");
crypto_init();
for(i = 0; i < sizeof(vectors) / sizeof(vectors[0]); i++) {
printf("-----------------------------------------\n"
"Test vector #%d: %s\n"
"len_len=%d key_area=%d\n"
"adata_len=%d mdata_len=%d mic_len=%d\n",
i, vectors[i].encrypt ? "encrypt" : "decrypt",
vectors[i].len_len, vectors[i].key_area,
vectors[i].adata_len, vectors[i].mdata_len, vectors[i].mic_len);
time = RTIMER_NOW();
ret = aes_load_key(vectors[i].key, vectors[i].key_area);
time = RTIMER_NOW() - time;
total_time = time;
printf("aes_load_key(): %s, %lu us\n", str_res[ret],
(uint32_t)((uint64_t)time * 1000000 / RTIMER_SECOND));
PROCESS_PAUSE();
if(ret != CRYPTO_SUCCESS) {
continue;
}
time = RTIMER_NOW();
if(vectors[i].encrypt) {
ret = ccm_auth_encrypt_start(vectors[i].len_len, vectors[i].key_area,
vectors[i].nonce, vectors[i].adata,
vectors[i].adata_len, vectors[i].mdata,
vectors[i].mdata_len, vectors[i].mic_len,
&ccm_test_process);
time2 = RTIMER_NOW();
time = time2 - time;
total_time += time;
if(ret == CRYPTO_SUCCESS) {
PROCESS_WAIT_EVENT_UNTIL(ccm_auth_encrypt_check_status());
time2 = RTIMER_NOW() - time2;
total_time += time2;
}
printf("ccm_auth_encrypt_start(): %s, %lu us\n", str_res[ret],
(uint32_t)((uint64_t)time * 1000000 / RTIMER_SECOND));
if(ret != CRYPTO_SUCCESS) {
PROCESS_PAUSE();
continue;
}
printf("ccm_auth_encrypt_check_status() wait: %lu us\n",
(uint32_t)((uint64_t)time2 * 1000000 / RTIMER_SECOND));
time = RTIMER_NOW();
ret = ccm_auth_encrypt_get_result(vectors[i].mic, vectors[i].mic_len);
time = RTIMER_NOW() - time;
total_time += time;
printf("ccm_auth_encrypt_get_result(): %s, %lu us\n", str_res[ret],
(uint32_t)((uint64_t)time * 1000000 / RTIMER_SECOND));
PROCESS_PAUSE();
if(ret != CRYPTO_SUCCESS) {
continue;
}
if(rom_util_memcmp(vectors[i].mdata, vectors[i].expected,
vectors[i].mdata_len)) {
puts("Encrypted message does not match expected one");
} else {
puts("Encrypted message OK");
}
if(rom_util_memcmp(vectors[i].mic,
vectors[i].expected + vectors[i].mdata_len,
vectors[i].mic_len)) {
puts("MIC does not match expected one");
} else {
puts("MIC OK");
}
} else {
ret = ccm_auth_decrypt_start(vectors[i].len_len, vectors[i].key_area,
vectors[i].nonce, vectors[i].adata,
vectors[i].adata_len, vectors[i].mdata,
vectors[i].mdata_len, vectors[i].mic_len,
&ccm_test_process);
time2 = RTIMER_NOW();
time = time2 - time;
total_time += time;
if(ret == CRYPTO_SUCCESS) {
PROCESS_WAIT_EVENT_UNTIL(ccm_auth_decrypt_check_status());
time2 = RTIMER_NOW() - time2;
total_time += time2;
}
printf("ccm_auth_decrypt_start(): %s, %lu us\n", str_res[ret],
(uint32_t)((uint64_t)time * 1000000 / RTIMER_SECOND));
if(ret != CRYPTO_SUCCESS) {
PROCESS_PAUSE();
continue;
}
printf("ccm_auth_decrypt_check_status() wait: %lu us\n",
(uint32_t)((uint64_t)time2 * 1000000 / RTIMER_SECOND));
time = RTIMER_NOW();
ret = ccm_auth_decrypt_get_result(vectors[i].mdata, vectors[i].mdata_len,
vectors[i].mic, vectors[i].mic_len);
time = RTIMER_NOW() - time;
total_time += time;
printf("ccm_auth_decrypt_get_result(): %s, %lu us\n", str_res[ret],
(uint32_t)((uint64_t)time * 1000000 / RTIMER_SECOND));
PROCESS_PAUSE();
if(ret != CRYPTO_SUCCESS) {
continue;
}
if(rom_util_memcmp(vectors[i].mdata, vectors[i].expected,
vectors[i].mdata_len - vectors[i].mic_len)) {
puts("Decrypted message does not match expected one");
} else {
puts("Decrypted message OK");
}
}
printf("Total duration: %lu us\n",
(uint32_t)((uint64_t)total_time * 1000000 / RTIMER_SECOND));
}
puts("-----------------------------------------\n"
"Disabling cryptoprocessor...");
crypto_disable();
puts("Done!");
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
/**
* @}
* @}
*/
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