#include <LoRaMacCrypto.h>

Public Member Functions
	LoRaMacCrypto ()
	Constructor. More...

	~LoRaMacCrypto ()
	Destructor. More...

int	compute_mic (const uint8_t buffer, uint16_t size, const uint8_t key, uint32_t key_length, uint32_t address, uint8_t dir, uint32_t seq_counter, uint32_t *mic)
	Computes the LoRaMAC frame MIC field. More...

int	encrypt_payload (const uint8_t buffer, uint16_t size, const uint8_t key, uint32_t key_length, uint32_t address, uint8_t dir, uint32_t seq_counter, uint8_t *enc_buffer)
	Performs payload encryption. More...

int	decrypt_payload (const uint8_t buffer, uint16_t size, const uint8_t key, uint32_t key_length, uint32_t address, uint8_t dir, uint32_t seq_counter, uint8_t *dec_buffer)
	Performs payload decryption. More...

int	compute_join_frame_mic (const uint8_t buffer, uint16_t size, const uint8_t key, uint32_t key_length, uint32_t *mic)
	Computes the LoRaMAC Join Request frame MIC field. More...

int	decrypt_join_frame (const uint8_t buffer, uint16_t size, const uint8_t key, uint32_t key_length, uint8_t *dec_buffer)
	Computes the LoRaMAC join frame decryption. More...

int	compute_skeys_for_join_frame (const uint8_t key, uint32_t key_length, const uint8_t app_nonce, uint16_t dev_nonce, uint8_t nwk_skey, uint8_t app_skey)
	Computes the LoRaMAC join frame decryption. More...

Detailed Description

 / _____)             _              | |
( (____  _____ ____ _| |_ _____  ____| |__
 \____ \| ___ |    (_   _) ___ |/ ___)  _ \
 _____) ) ____| | | || |_| ____( (___| | | |
(______/|_____)_|_|_| \__)_____)\____)_| |_|
    (C)2013 Semtech
 ___ _____ _   ___ _  _____ ___  ___  ___ ___
/ __|_   _/_\ / __| |/ / __/ _ \| _ \/ __| __|
\__ \ | |/ _ \ (__| ' <| _| (_) |   / (__| _|
|___/ |_/_/ \_\___|_|\_\_| \___/|_|_\\___|___|
embedded.connectivity.solutions===============

Description: LoRa MAC Crypto implementation

License: Revised BSD License, see LICENSE.TXT file include in the project

Maintainer: Miguel Luis ( Semtech ), Gregory Cristian ( Semtech ) and Daniel Jaeckle ( STACKFORCE )

SPDX-License-Identifier: BSD-3-Clause

Definition at line 38 of file LoRaMacCrypto.h.

Constructor & Destructor Documentation

LoRaMacCrypto ( )

Constructor.

~LoRaMacCrypto ( )

Destructor.

Member Function Documentation

int compute_join_frame_mic	(	const uint8_t *	buffer,
		uint16_t	size,
		const uint8_t *	key,
		uint32_t	key_length,
		uint32_t *	mic
	)

Computes the LoRaMAC Join Request frame MIC field.

Parameters

[in]	buffer	- Data buffer
[in]	size	- Data buffer size
[in]	key	- AES key to be used
[in]	key_length	- Length of the key (bits)
[out]	mic	- Computed MIC field

Returns: 0 if successful, or a cipher specific error code

int compute_mic	(	const uint8_t *	buffer,
		uint16_t	size,
		const uint8_t *	key,
		uint32_t	key_length,
		uint32_t	address,
		uint8_t	dir,
		uint32_t	seq_counter,
		uint32_t *	mic
	)

Computes the LoRaMAC frame MIC field.

Parameters

[in]	buffer	- Data buffer
[in]	size	- Data buffer size
[in]	key	- AES key to be used
[in]	key_length	- Length of the key (bits)
[in]	address	- Frame address
[in]	dir	- Frame direction [0: uplink, 1: downlink]
[in]	seq_counter	- Frame sequence counter
[out]	mic	- Computed MIC field

Returns: 0 if successful, or a cipher specific error code

int compute_skeys_for_join_frame	(	const uint8_t *	key,
		uint32_t	key_length,
		const uint8_t *	app_nonce,
		uint16_t	dev_nonce,
		uint8_t *	nwk_skey,
		uint8_t *	app_skey
	)

Computes the LoRaMAC join frame decryption.

Parameters

[in]	key	- AES key to be used
[in]	key_length	- Length of the key (bits)
[in]	app_nonce	- Application nonce
[in]	dev_nonce	- Device nonce
[out]	nwk_skey	- Network session key
[out]	app_skey	- Application session key

Returns: 0 if successful, or a cipher specific error code

int decrypt_join_frame	(	const uint8_t *	buffer,
		uint16_t	size,
		const uint8_t *	key,
		uint32_t	key_length,
		uint8_t *	dec_buffer
	)

Computes the LoRaMAC join frame decryption.

Parameters

[in]	buffer	- Data buffer
[in]	size	- Data buffer size
[in]	key	- AES key to be used
[in]	key_length	- Length of the key (bits)
[out]	dec_buffer	- Decrypted buffer

Returns: 0 if successful, or a cipher specific error code

int decrypt_payload	(	const uint8_t *	buffer,
		uint16_t	size,
		const uint8_t *	key,
		uint32_t	key_length,
		uint32_t	address,
		uint8_t	dir,
		uint32_t	seq_counter,
		uint8_t *	dec_buffer
	)

Performs payload decryption.

Parameters

[in]	buffer	- Data buffer
[in]	size	- Data buffer size
[in]	key	- AES key to be used
[in]	key_length	- Length of the key (bits)
[in]	address	- Frame address
[in]	dir	- Frame direction [0: uplink, 1: downlink]
[in]	seq_counter	- Frame sequence counter
[out]	dec_buffer	- Decrypted buffer

Returns: 0 if successful, or a cipher specific error code

int encrypt_payload	(	const uint8_t *	buffer,
		uint16_t	size,
		const uint8_t *	key,
		uint32_t	key_length,
		uint32_t	address,
		uint8_t	dir,
		uint32_t	seq_counter,
		uint8_t *	enc_buffer
	)

Performs payload encryption.

Parameters

[in]	buffer	- Data buffer
[in]	size	- Data buffer size
[in]	key	- AES key to be used
[in]	key_length	- Length of the key (bits)
[in]	address	- Frame address
[in]	dir	- Frame direction [0: uplink, 1: downlink]
[in]	seq_counter	- Frame sequence counter
[out]	enc_buffer	- Encrypted buffer

Returns: 0 if successful, or a cipher specific error code

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

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