94831a7589
There may be use cases where input and output is in big-endian rather than little-endian. Introduce a native big-endian API to avoid excessive byte order reversals in these cases. Change-Id: Ia7b3e01bb0a07c4560b23f60c2f615ec614eb431 Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
55 lines
1.0 KiB
C
55 lines
1.0 KiB
C
/*
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* Copyright (c) 2016-2017 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <soc.h>
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#define BT_DBG_ENABLED IS_ENABLED(CONFIG_BLUETOOTH_DEBUG_HCI_DRIVER)
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#include <bluetooth/log.h>
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#include "hal/cpu.h"
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#include "hal/rand.h"
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#include "hal/ecb.h"
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K_MUTEX_DEFINE(mutex_rand);
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int bt_rand(void *buf, size_t len)
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{
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while (len) {
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k_mutex_lock(&mutex_rand, K_FOREVER);
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len = rand_get(len, buf);
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k_mutex_unlock(&mutex_rand);
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if (len) {
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cpu_sleep();
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}
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}
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return 0;
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}
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int bt_encrypt_le(const uint8_t key[16], const uint8_t plaintext[16],
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uint8_t enc_data[16])
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{
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BT_DBG("key %s plaintext %s", bt_hex(key, 16), bt_hex(plaintext, 16));
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ecb_encrypt(key, plaintext, enc_data, NULL);
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BT_DBG("enc_data %s", bt_hex(enc_data, 16));
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return 0;
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}
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int bt_encrypt_be(const uint8_t key[16], const uint8_t plaintext[16],
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uint8_t enc_data[16])
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{
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BT_DBG("key %s plaintext %s", bt_hex(key, 16), bt_hex(plaintext, 16));
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ecb_encrypt_be(key, plaintext, enc_data);
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BT_DBG("enc_data %s", bt_hex(enc_data, 16));
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return 0;
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}
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