mirror of
https://github.com/pvvx/rtl00TstMinAmebaV35a.git
synced 2024-11-24 02:14:16 +00:00
118 lines
2.7 KiB
C
118 lines
2.7 KiB
C
|
/**
|
||
|
|
* \file arc4.h
|
||
|
|
*
|
||
|
|
* \brief 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.
|
||
|
|
*/
|
||
|
|
#ifndef POLARSSL_ARC4_H
|
||
|
|
#define POLARSSL_ARC4_H
|
||
|
|
|
||
|
|
#if !defined(POLARSSL_CONFIG_FILE)
|
||
|
|
#include "config.h"
|
||
|
|
#else
|
||
|
|
#include POLARSSL_CONFIG_FILE
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#if !defined(POLARSSL_ARC4_ALT)
|
||
|
|
// Regular implementation
|
||
|
|
//
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief ARC4 context structure
|
||
|
|
*/
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
int x; /*!< permutation index */
|
||
|
|
int y; /*!< permutation index */
|
||
|
|
unsigned char m[256]; /*!< permutation table */
|
||
|
|
}
|
||
|
|
arc4_context;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Initialize ARC4 context
|
||
|
|
*
|
||
|
|
* \param ctx ARC4 context to be initialized
|
||
|
|
*/
|
||
|
|
void arc4_init( arc4_context *ctx );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Clear ARC4 context
|
||
|
|
*
|
||
|
|
* \param ctx ARC4 context to be cleared
|
||
|
|
*/
|
||
|
|
void arc4_free( arc4_context *ctx );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief ARC4 key schedule
|
||
|
|
*
|
||
|
|
* \param ctx ARC4 context to be setup
|
||
|
|
* \param key the secret key
|
||
|
|
* \param keylen length of the key, in bytes
|
||
|
|
*/
|
||
|
|
void arc4_setup( arc4_context *ctx, const unsigned char *key,
|
||
|
|
unsigned int keylen );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief ARC4 cipher function
|
||
|
|
*
|
||
|
|
* \param ctx ARC4 context
|
||
|
|
* \param length length of the input data
|
||
|
|
* \param input buffer holding the input data
|
||
|
|
* \param output buffer for the output data
|
||
|
|
*
|
||
|
|
* \return 0 if successful
|
||
|
|
*/
|
||
|
|
int arc4_crypt( arc4_context *ctx, size_t length, const unsigned char *input,
|
||
|
|
unsigned char *output );
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#else /* POLARSSL_ARC4_ALT */
|
||
|
|
#include "arc4_alt.h"
|
||
|
|
#endif /* POLARSSL_ARC4_ALT */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Checkup routine
|
||
|
|
*
|
||
|
|
* \return 0 if successful, or 1 if the test failed
|
||
|
|
*/
|
||
|
|
int arc4_self_test( int verbose );
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* arc4.h */
|