mirror of
https://github.com/IoTManagerProject/IoTManager.git
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67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
/*
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* The MySensors Arduino library handles the wireless radio link and protocol
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* between your home built sensors/actuators and HA controller of choice.
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* The sensors forms a self healing radio network with optional repeaters. Each
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* repeater and gateway builds a routing tables in EEPROM which keeps track of the
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* network topology allowing messages to be routed to nodes.
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*
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* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
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* Copyright (C) 2013-2019 Sensnology AB
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* Full contributor list: https://github.com/mysensors/MySensors/graphs/contributors
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*
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* Documentation: http://www.mysensors.org
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* Support Forum: http://forum.mysensors.org
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*/
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#include "MyCryptoESP32.h"
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// ESP32 SHA256
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void SHA256(uint8_t *dest, const uint8_t *data, size_t dataLength)
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{
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mbedtls_md_context_t ctx;
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mbedtls_md_init(&ctx);
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mbedtls_md_setup(&ctx, mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), 0);
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mbedtls_md_starts(&ctx);
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mbedtls_md_update(&ctx, (const unsigned char *)data, dataLength);
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mbedtls_md_finish(&ctx, dest);
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}
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// ESP32 SHA256HMAC
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void SHA256HMAC(uint8_t *dest, const uint8_t *key, size_t keyLength, const uint8_t *data,
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size_t dataLength)
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{
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mbedtls_md_context_t ctx;
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mbedtls_md_init(&ctx);
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mbedtls_md_setup(&ctx, mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), 1);
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mbedtls_md_starts(&ctx);
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mbedtls_md_hmac_starts(&ctx, (const unsigned char *)key, keyLength);
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mbedtls_md_hmac_update(&ctx, (const unsigned char *)data, dataLength);
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mbedtls_md_hmac_finish(&ctx, dest);
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}
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// ESP32 AES128 CBC
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static mbedtls_aes_context aes_ctx;
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void AES128CBCInit(const uint8_t *key)
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{
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mbedtls_aes_init(&aes_ctx);
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(void)mbedtls_aes_setkey_enc(&aes_ctx, key, 128);
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}
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void AES128CBCEncrypt(uint8_t *iv, uint8_t *buffer, const size_t dataLength)
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{
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mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_ENCRYPT, dataLength, iv, (const unsigned char *)buffer,
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(unsigned char *)buffer);
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}
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void AES128CBCDecrypt(uint8_t *iv, uint8_t *buffer, const size_t dataLength)
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{
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mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_DECRYPT, dataLength, iv, (const unsigned char *)buffer,
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(unsigned char *)buffer);
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}
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