tiger.c File Reference

Tiger hash function. More...

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

Go to the source code of this file.

Macros
#define	TRACE_LEVEL   CRYPTO_TRACE_LEVEL
#define	ROUND(a, b, c, x, mul)
#define	KEY_SCHEDULE(x)

Functions
error_t	tigerCompute (const void *data, size_t length, uint8_t *digest)
	Digest a message using Tiger. More...
void	tigerInit (TigerContext *context)
	Initialize Tiger message digest context. More...
void	tigerUpdate (TigerContext *context, const void *data, size_t length)
	Update the Tiger context with a portion of the message being hashed. More...
void	tigerFinal (TigerContext *context, uint8_t *digest)
	Finish the Tiger message digest. More...
void	tigerProcessBlock (TigerContext *context)
	Process message in 16-word blocks. More...

Variables
const uint8_t	TIGER_OID [9] = {0x2B, 0x06, 0x01, 0x04, 0x01, 0xDA, 0x47, 0x0C, 0x02}
const HashAlgo	tigerHashAlgo

Detailed Description

Tiger hash function.

License

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

Copyright (C) 2010-2025 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.

Author

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

Version

2.5.4

Definition in file tiger.c.

Macro Definition Documentation

KEY_SCHEDULE

#define KEY_SCHEDULE

(

x

)

Value:

{ \
   x[0] -= x[7] ^ 0xA5A5A5A5A5A5A5A5; \
   x[1] ^= x[0]; \
   x[2] += x[1]; \
   x[3] -= x[2] ^ ((~x[1]) << 19); \
   x[4] ^= x[3]; \
   x[5] += x[4]; \
   x[6] -= x[5] ^ ((~x[4]) >> 23); \
   x[7] ^= x[6]; \
   x[0] += x[7]; \
   x[1] -= x[0] ^ ((~x[7]) << 19); \
   x[2] ^= x[1]; \
   x[3] += x[2]; \
   x[4] -= x[3] ^ ((~x[2]) >> 23); \
   x[5] ^= x[4]; \
   x[6] += x[5]; \
   x[7] -= x[6] ^ 0x0123456789ABCDEF; \
}

Definition at line 51 of file tiger.c.

ROUND

#define ROUND	(		a,
			b,
			c,
			x,
			mul
	)

Value:

{ \
      c ^= x; \
      a -= t1[c & 0xFF] ^ t2[(c >> 16) & 0xFF] ^ t3[(c >> 32) & 0xFF] ^ t4[(c >> 48) & 0xFF]; \
      b += t4[(c >> 8) & 0xFF] ^ t3[(c >> 24) & 0xFF] ^ t2[(c >> 40) & 0xFF] ^ t1[(c >> 56) & 0xFF]; \
      b *= mul; \
}

Definition at line 42 of file tiger.c.

TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 32 of file tiger.c.

Function Documentation

tigerCompute()

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

Digest a message using Tiger.

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

Definition at line 386 of file tiger.c.

tigerFinal()

void tigerFinal	(	TigerContext *	context,
		uint8_t *	digest
	)

Finish the Tiger message digest.

Parameters

[in]	context	Pointer to the Tiger context
[out]	digest	Calculated digest

Definition at line 491 of file tiger.c.

tigerInit()

void tigerInit

(

TigerContext *

context

)

Initialize Tiger message digest context.

Parameters

[in]

context

Pointer to the Tiger context to initialize

Definition at line 431 of file tiger.c.

tigerProcessBlock()

void tigerProcessBlock

(

TigerContext *

context

)

Process message in 16-word blocks.

Parameters

[in]

context

Pointer to the Tiger context

Definition at line 536 of file tiger.c.

tigerUpdate()

void tigerUpdate	(	TigerContext *	context,
		const void *	data,
		size_t	length
	)

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

Parameters

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

Definition at line 452 of file tiger.c.

Variable Documentation

TIGER_OID

const uint8_t TIGER_OID[9] = {0x2B, 0x06, 0x01, 0x04, 0x01, 0xDA, 0x47, 0x0C, 0x02}

Definition at line 357 of file tiger.c.

tigerHashAlgo

const HashAlgo tigerHashAlgo

Initial value:

=
{
   "Tiger",
   TIGER_OID,
   sizeof(TIGER_OID),
   sizeof(TigerContext),
   TIGER_BLOCK_SIZE,
   TIGER_DIGEST_SIZE,
   TIGER_MIN_PAD_SIZE,
   FALSE,
   (HashAlgoCompute) tigerCompute,
   (HashAlgoInit) tigerInit,
   (HashAlgoUpdate) tigerUpdate,
   (HashAlgoFinal) tigerFinal,
   NULL
}

Definition at line 360 of file tiger.c.