ike_key_material.c File Reference

Key material generation. More...

#include "ike/ike.h"
#include "ike/ike_key_material.h"
#include "ike/ike_algorithms.h"
#include "ah/ah_algorithms.h"
#include "esp/esp_algorithms.h"
#include "debug.h"

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   IKE_TRACE_LEVEL

Functions
error_t	ikeGenerateSaKeyMaterial (IkeSaEntry *sa, IkeSaEntry *oldSa)
	Generate keying material for the IKE SA. More...
error_t	ikeGenerateChildSaKeyMaterial (IkeChildSaEntry *childSa)
	Generate keying material for the Child SA. More...
error_t	ikeComputePrf (IkeSaEntry *sa, const uint8_t *k, size_t kLen, const void *s, size_t sLen, uint8_t *output)
	Pseudorandom function (prf function) More...
error_t	ikeComputePrfPlus (IkeSaEntry *sa, const uint8_t *k, size_t kLen, const uint8_t *s, size_t sLen, uint8_t *output, size_t outputLen)
	Function that outputs a pseudorandom stream (prf+ function) More...
error_t	ikeInitPrf (IkeSaEntry *sa, const uint8_t *vk, size_t vkLen)
	Initialize PRF calculation. More...
void	ikeUpdatePrf (IkeSaEntry *sa, const uint8_t *s, size_t sLen)
	Update PRF calculation. More...
error_t	ikeFinalizePrf (IkeSaEntry *sa, uint8_t *output)
	Finalize PRF calculation. More...

Detailed Description

Key material generation.

License

SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2022-2024 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneIPSEC Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author

Oryx Embedded SARL (www.oryx-embedded.com)

Version

2.4.0

Definition in file ike_key_material.c.

Macro Definition Documentation

TRACE_LEVEL

#define TRACE_LEVEL   IKE_TRACE_LEVEL

Definition at line 32 of file ike_key_material.c.

Function Documentation

ikeComputePrf()

error_t ikeComputePrf	(	IkeSaEntry *	sa,
		const uint8_t *	k,
		size_t	kLen,
		const void *	s,
		size_t	sLen,
		uint8_t *	output
	)

Pseudorandom function (prf function)

Parameters

[in]	sa	Pointer to the IKE SA
[in]	k	Pointer to the key
[in]	kLen	Length of the key, in bytes
[in]	s	Pointer to the data
[in]	sLen	Length of the data, in bytes
[in]	output	Pseudorandom output

Returns

Error code

Definition at line 421 of file ike_key_material.c.

ikeComputePrfPlus()

error_t ikeComputePrfPlus	(	IkeSaEntry *	sa,
		const uint8_t *	k,
		size_t	kLen,
		const uint8_t *	s,
		size_t	sLen,
		uint8_t *	output,
		size_t	outputLen
	)

Function that outputs a pseudorandom stream (prf+ function)

Parameters

[in]	sa	Pointer to the IKE SA
[in]	k	Pointer to the key
[in]	kLen	Length of the key, in bytes
[in]	s	Pointer to the data
[in]	sLen	Length of the data, in bytes
[out]	output	Pseudorandom output stream
[in]	outputLen	Desired length of the pseudorandom output stream

Returns

Error code

Definition at line 456 of file ike_key_material.c.

ikeFinalizePrf()

error_t ikeFinalizePrf	(	IkeSaEntry *	sa,
		uint8_t *	output
	)

Finalize PRF calculation.

Parameters

[in]	sa	Pointer to the IKE SA
[in]	output	Pseudorandom output

Returns

Error code

Definition at line 698 of file ike_key_material.c.

ikeGenerateChildSaKeyMaterial()

error_t ikeGenerateChildSaKeyMaterial

(

IkeChildSaEntry *

childSa

)

Generate keying material for the Child SA.

Parameters

[in]

childSa

Pointer to the Child SA

Returns

Error code

Definition at line 261 of file ike_key_material.c.

ikeGenerateSaKeyMaterial()

error_t ikeGenerateSaKeyMaterial	(	IkeSaEntry *	sa,
		IkeSaEntry *	oldSa
	)

Generate keying material for the IKE SA.

Parameters

[in]	sa	Pointer to the IKE SA
[in]	oldSa	Pointer to the old IKE SA

Returns

Error code

Definition at line 53 of file ike_key_material.c.

ikeInitPrf()

error_t ikeInitPrf	(	IkeSaEntry *	sa,
		const uint8_t *	vk,
		size_t	vkLen
	)

Initialize PRF calculation.

Parameters

[in]	sa	Pointer to the IKE SA
[in]	vk	Pointer to the variable-length key
[in]	vkLen	Length of the key, in bytes

Returns

Error code

Definition at line 517 of file ike_key_material.c.

ikeUpdatePrf()

void ikeUpdatePrf	(	IkeSaEntry *	sa,
		const uint8_t *	s,
		size_t	sLen
	)

Update PRF calculation.

Parameters

[in]	sa	Pointer to the IKE SA
[in]	s	Pointer to the data
[in]	sLen	Length of the data, in bytes

Definition at line 653 of file ike_key_material.c.