sha4.h File Reference

Copyright (C) 2006-2010, Brainspark B.V.

This file is part of PolarSSL (http://www.polarssl.org) Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>

All rights reserved.

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.

Data Structures
struct	sha4_context
	SHA-512 context structure. More...

Macros
#define	int64   long long
#define	UL64(x)   x##ULL

Functions
void	sha4 (const unsigned char *input, int ilen, unsigned char output[64], int is384)
	Output = SHA-512( input buffer ) More...
int	sha4_file (const char *path, unsigned char output[64], int is384)
	Output = SHA-512( file contents ) More...
void	sha4_finish (sha4_context *ctx, unsigned char output[64])
	SHA-512 final digest. More...
void	sha4_hmac (const unsigned char *key, int keylen, const unsigned char *input, int ilen, unsigned char output[64], int is384)
	Output = HMAC-SHA-512( hmac key, input buffer ) More...
void	sha4_hmac_finish (sha4_context *ctx, unsigned char output[64])
	SHA-512 HMAC final digest. More...
void	sha4_hmac_reset (sha4_context *ctx)
	SHA-512 HMAC context reset. More...
void	sha4_hmac_starts (sha4_context *ctx, const unsigned char *key, int keylen, int is384)
	SHA-512 HMAC context setup. More...
void	sha4_hmac_update (sha4_context *ctx, const unsigned char *input, int ilen)
	SHA-512 HMAC process buffer. More...
int	sha4_self_test (int verbose)
	Checkup routine. More...
void	sha4_starts (sha4_context *ctx, int is384)
	SHA-512 context setup. More...
void	sha4_update (sha4_context *ctx, const unsigned char *input, int ilen)
	SHA-512 process buffer. More...

#define int64   long long

#define UL64

(

x

)

x##ULL

void sha4	(	const unsigned char *	input,
		int	ilen,
		unsigned char	output[64],
		int	is384
	)

Output = SHA-512( input buffer )

Parameters

input	buffer holding the data
ilen	length of the input data
output	SHA-384/512 checksum result
is384	0 = use SHA512, 1 = use SHA384

Referenced by main().

int sha4_file	(	const char *	path,
		unsigned char	output[64],
		int	is384
	)

Output = SHA-512( file contents )

Parameters

path	input file name
output	SHA-384/512 checksum result
is384	0 = use SHA512, 1 = use SHA384

Returns

0 if successful, 1 if fopen failed, or 2 if fread failed

void sha4_finish	(	sha4_context *	ctx,
		unsigned char	output[64]
	)

SHA-512 final digest.

Parameters

ctx	SHA-512 context
output	SHA-384/512 checksum result

void sha4_hmac	(	const unsigned char *	key,
		int	keylen,
		const unsigned char *	input,
		int	ilen,
		unsigned char	output[64],
		int	is384
	)

Output = HMAC-SHA-512( hmac key, input buffer )

Parameters

key	HMAC secret key
keylen	length of the HMAC key
input	buffer holding the data
ilen	length of the input data
output	HMAC-SHA-384/512 result
is384	0 = use SHA512, 1 = use SHA384

void sha4_hmac_finish	(	sha4_context *	ctx,
		unsigned char	output[64]
	)

SHA-512 HMAC final digest.

Parameters

ctx	HMAC context
output	SHA-384/512 HMAC checksum result

void sha4_hmac_reset

(

sha4_context *

ctx

)

SHA-512 HMAC context reset.

Parameters

ctx	HMAC context to be reset

void sha4_hmac_starts	(	sha4_context *	ctx,
		const unsigned char *	key,
		int	keylen,
		int	is384
	)

SHA-512 HMAC context setup.

Parameters

ctx	HMAC context to be initialized
is384	0 = use SHA512, 1 = use SHA384
key	HMAC secret key
keylen	length of the HMAC key

void sha4_hmac_update	(	sha4_context *	ctx,
		const unsigned char *	input,
		int	ilen
	)

SHA-512 HMAC process buffer.

Parameters

ctx	HMAC context
input	buffer holding the data
ilen	length of the input data

int sha4_self_test

(

int

verbose

)

Checkup routine.

Returns

0 if successful, or 1 if the test failed

Referenced by main().

void sha4_starts	(	sha4_context *	ctx,
		int	is384
	)

SHA-512 context setup.

Parameters

ctx	context to be initialized
is384	0 = use SHA512, 1 = use SHA384

void sha4_update	(	sha4_context *	ctx,
		const unsigned char *	input,
		int	ilen
	)

SHA-512 process buffer.

Parameters

ctx	SHA-512 context
input	buffer holding the data
ilen	length of the input data