mirror of
https://github.com/zephyrproject-rtos/zephyr
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f756b79124
Use the NRF RNG entropy device as the entropy device for bt_rand and controller internal functions when LLL is Nordic. Using an entropy source with a significant increase in stack usage will invalidate all stack size configurations in the system and lead to stack overflow issues. Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
46 lines
943 B
C
46 lines
943 B
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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#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 "util/memq.h"
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#include "hal/ecb.h"
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#include "lll.h"
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int bt_rand(void *buf, size_t len)
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{
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return lll_csrand_get(buf, len);
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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", bt_hex(key, 16));
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BT_DBG("plaintext %s", 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", bt_hex(key, 16));
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BT_DBG("plaintext %s", 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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