blake2s.c File Reference

BLAKE2 cryptographic hash and MAC (BLAKE2s variant) More...

#include "core/crypto.h"
#include "hash/blake2s.h"

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL
#define	G(a, b, c, d, x, y)

Functions
error_t	blake2sCompute (const void *key, size_t keyLen, const void *data, size_t dataLen, uint8_t *digest, size_t digestLen)
	Digest a message using BLAKE2s. More...
error_t	blake2sInit (Blake2sContext *context, const void *key, size_t keyLen, size_t digestLen)
	Initialize BLAKE2s message digest context. More...
void	blake2sUpdate (Blake2sContext *context, const void *data, size_t length)
	Update the BLAKE2s context with a portion of the message being hashed. More...
void	blake2sFinal (Blake2sContext *context, uint8_t *digest)
	Finish the BLAKE2s message digest. More...
void	blake2sProcessBlock (Blake2sContext *context, bool_t last)
	Compression function F. More...

Detailed Description

BLAKE2 cryptographic hash and MAC (BLAKE2s variant)

License

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

Copyright (C) 2010-2024 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneCRYPTO 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.

Description

BLAKE2s is cryptographic hash function optimized for 8- to 32-bit platforms that produces digests of any size between 1 and 32 bytes. Refer to RFC 7693 for more details

Author

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

Version

2.4.4

Definition in file blake2s.c.

Macro Definition Documentation

G

#define G	(		a,
			b,
			c,
			d,
			x,
			y
	)

Value:

{ \
   a += b + x; \
   d ^= a; \
   d = ROR32(d, 16); \
   c += d; \
   b ^= c; \
   b = ROR32(b, 12); \
   a += b + y; \
   d ^= a; \
   d = ROR32(d, 8); \
   c += d; \
   b ^= c; \
   b = ROR32(b, 7); \
}

Definition at line 48 of file blake2s.c.

TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 38 of file blake2s.c.

Function Documentation

blake2sCompute()

error_t blake2sCompute	(	const void *	key,
		size_t	keyLen,
		const void *	data,
		size_t	dataLen,
		uint8_t *	digest,
		size_t	digestLen
	)

Digest a message using BLAKE2s.

Parameters

[in]	key	Pointer to the key
[in]	keyLen	Length of the key
[in]	data	Pointer to the message being hashed
[in]	dataLen	Length of the message
[out]	digest	Pointer to the calculated digest
[in]	digestLen	Expected length of the digest

Returns

Error code

Definition at line 98 of file blake2s.c.

blake2sFinal()

void blake2sFinal	(	Blake2sContext *	context,
		uint8_t *	digest
	)

Finish the BLAKE2s message digest.

Parameters

[in]	context	Pointer to the BLAKE2s context
[out]	digest	Calculated digest (optional parameter)

Definition at line 259 of file blake2s.c.

blake2sInit()

error_t blake2sInit	(	Blake2sContext *	context,
		const void *	key,
		size_t	keyLen,
		size_t	digestLen
	)

Initialize BLAKE2s message digest context.

Parameters

[in]	context	Pointer to the BLAKE2s context to initialize
[in]	key	Pointer to the key
[in]	keyLen	Length of the key
[in]	digestLen	Expected length of the digest

Returns

Error code

Definition at line 154 of file blake2s.c.

blake2sProcessBlock()

void blake2sProcessBlock	(	Blake2sContext *	context,
		bool_t	last
	)

Compression function F.

Parameters

[in]	context	Pointer to the BLAKE2s context
[in]	last	Flag indicating the last block

Definition at line 292 of file blake2s.c.

blake2sUpdate()

void blake2sUpdate	(	Blake2sContext *	context,
		const void *	data,
		size_t	length
	)

Update the BLAKE2s context with a portion of the message being hashed.

Parameters

[in]	context	Pointer to the BLAKE2s context
[in]	data	Pointer to the buffer being hashed
[in]	length	Length of the buffer

Definition at line 221 of file blake2s.c.