arc4.h File Reference

The ARCFOUR stream cipher. More...

#include "config.h"
#include <string.h>

Include dependency graph for arc4.h:

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Data Structures
struct	arc4_context
	ARC4 context structure. More...

Functions
void	arc4_init (arc4_context *ctx)
	Initialize ARC4 context.
void	arc4_free (arc4_context *ctx)
	Clear ARC4 context.
void	arc4_setup (arc4_context *ctx, const unsigned char *key, unsigned int keylen)
	ARC4 key schedule.
int	arc4_crypt (arc4_context *ctx, size_t length, const unsigned char *input, unsigned char *output)
	ARC4 cipher function.
int	arc4_self_test (int verbose)
	Checkup routine.

Detailed Description

The ARCFOUR stream cipher.

Copyright (C) 2006-2014, 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.

Definition in file arc4.h.

Function Documentation

arc4_crypt()

int arc4_crypt	(	arc4_context *	ctx,
		size_t	length,
		const unsigned char *	input,
		unsigned char *	output )

ARC4 cipher function.

Parameters

ctx	ARC4 context
length	length of the input data
input	buffer holding the input data
output	buffer for the output data

Returns

0 if successful

arc4_free()

void arc4_free

(

arc4_context *

ctx

)

Clear ARC4 context.

Parameters

ctx	ARC4 context to be cleared

arc4_init()

void arc4_init

(

arc4_context *

ctx

)

Initialize ARC4 context.

Parameters

ctx	ARC4 context to be initialized

arc4_self_test()

int arc4_self_test

(

int

verbose

)

Checkup routine.

Returns

0 if successful, or 1 if the test failed

arc4_setup()

void arc4_setup	(	arc4_context *	ctx,
		const unsigned char *	key,
		unsigned int	keylen )

ARC4 key schedule.

Parameters

ctx	ARC4 context to be setup
key	the secret key
keylen	length of the key, in bytes