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69 lines
2.1 KiB
C
69 lines
2.1 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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#ifndef MyCryptoHAL_h
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#define MyCryptoHAL_h
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/**
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* @brief SHA256 calculation
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*
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* The returned hash size is always 32 bytes.
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*
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* @param dest Buffer to return 32-byte hash.
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* @param data Buffer with data to add.
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* @param dataLength Size of data buffer.
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*/
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void SHA256(uint8_t *dest, const uint8_t *data, size_t dataLength);
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/**
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* @brief SHA256 HMAC calculation
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*
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* The returned hash size is always 32 bytes.
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*
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* @param dest Buffer to return 32-byte hash.
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* @param key Buffer with HMAC key.
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* @param keyLength Size of HMAC key.
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* @param data Buffer with data to add.
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* @param dataLength Size of data buffer.
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*/
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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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* @brief AES128CBCInit
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* @param key AES encryption key, 16 bytes
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*/
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void AES128CBCInit(const uint8_t *key);
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/**
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* @brief AES128CBCEncrypt
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* @param iv Initialization vector, 16 bytes
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* @param buffer Buffer to enctypt
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* @param dataLength Buffer length
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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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* @brief AES128CBCDecrypt
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* @param iv Initialization vector, 16 bytes
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* @param buffer Buffer to decrypt
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* @param dataLength Buffer length
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*/
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void AES128CBCDecrypt(uint8_t *iv, uint8_t *buffer, const size_t dataLength);
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#endif
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