crc32.c File Reference

CRC32 cryptographic integrity tag. More...

#include "core/crc32.h"
#include "core/crypto.h"
#include "debug.h"

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Functions
error_t	crc32Compute (const void *data, size_t length, uint8_t *digest)
	Digest a message using CRC32.
void	crc32Init (Crc32Context *context)
	Initialize CRC32 message digest context.
void	crc32Update (Crc32Context *context, const void *data, size_t length)
	Update the CRC32 context with a portion of the message being hashed.
void	crc32Final (Crc32Context *context, uint8_t *digest)
	Finish the CRC32 message digest.

Variables
const HashAlgo	crc32HashAlgo

Detailed Description

CRC32 cryptographic integrity tag.

License

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

Copyright (C) 2021-2026 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneBOOT 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

2.6.6

Function Documentation

crc32Compute()

error_t crc32Compute	(	const void *	data,
		size_t	length,
		uint8_t *	digest
	)

Digest a message using CRC32.

Parameters

[in]	data	Pointer to the message being hashed
[in]	length	Length of the message
[out]	digest	Pointer to the calculated digest

Returns

Error code

crc32Final()

void crc32Final	(	Crc32Context *	context,
		uint8_t *	digest
	)

Finish the CRC32 message digest.

Parameters

[in]	context	Pointer to the CRC32 context
[out]	digest	Calculated digest (optional parameter)

crc32Init()

void crc32Init

(

Crc32Context *

context

)

Initialize CRC32 message digest context.

Parameters

[in]

context

Pointer to the CRC32 context to initialize

crc32Update()

void crc32Update	(	Crc32Context *	context,
		const void *	data,
		size_t	length
	)

Update the CRC32 context with a portion of the message being hashed.

Parameters

[in]	context	Pointer to the CRC32 context
[in]	data	Pointer to the buffer being hashed
[in]	length	Length of the buffer

Variable Documentation

crc32HashAlgo

const HashAlgo crc32HashAlgo

Initial value:

= {"CRC32",
                                NULL,
                                0,
                                sizeof(Crc32Context),
                                1,
                                CRC32_DIGEST_SIZE,
                                0,
                                FALSE,
                                (HashAlgoCompute)crc32Compute,
                                (HashAlgoInit)crc32Init,
                                (HashAlgoUpdate)crc32Update,
                                (HashAlgoFinal)crc32Final,
                                (HashAlgoFinalRaw)NULL}