61 lines
1.1 KiB
C
61 lines
1.1 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_BT_DEBUG_HCI_DRIVER)
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#define LOG_MODULE_NAME bt_ctlr_crypto
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#include "common/log.h"
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#include "hal/ecb.h"
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#include <random/rand32.h>
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int bt_rand(void *buf, size_t len)
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{
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u8_t *buf8 = buf;
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while (len) {
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u32_t v = sys_rand32_get();
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if (len >= sizeof(v)) {
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memcpy(buf8, &v, sizeof(v));
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buf8 += sizeof(v);
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len -= sizeof(v);
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} else {
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memcpy(buf8, &v, len);
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break;
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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 u8_t key[16], const u8_t plaintext[16],
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u8_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 u8_t key[16], const u8_t plaintext[16],
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u8_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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