35 lines
686 B
C
35 lines
686 B
C
|
/* Copyright (c) 2022 Nordic Semiconductor ASA
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include <zephyr/sys/byteorder.h>
|
||
|
|
|
||
|
|
#include <tinycrypt/cmac_mode.h>
|
||
|
|
#include <tinycrypt/constants.h>
|
||
|
|
|
||
|
|
#include "common/bt_str.h"
|
||
|
|
#include "bt_crypto.h"
|
||
|
|
|
||
|
|
int bt_crypto_aes_cmac(const uint8_t *key, const uint8_t *in, size_t len, uint8_t *out)
|
||
|
|
{
|
||
|
|
struct tc_aes_key_sched_struct sched;
|
||
|
|
struct tc_cmac_struct state;
|
||
|
|
|
||
|
|
if (tc_cmac_setup(&state, key, &sched) == TC_CRYPTO_FAIL) {
|
||
|
|
return -EIO;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (tc_cmac_update(&state, in, len) == TC_CRYPTO_FAIL) {
|
||
|
|
return -EIO;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (tc_cmac_final(out, &state) == TC_CRYPTO_FAIL) {
|
||
|
|
return -EIO;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|