arc4.h

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/*
 *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
 *  SPDX-License-Identifier: Apache-2.0
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may
 *  not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  This file is part of mbed TLS (https://tls.mbed.org)
 *
 */
#ifndef MBEDTLS_ARC4_H
#define MBEDTLS_ARC4_H

#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif

#include <stddef.h>

/* MBEDTLS_ERR_ARC4_HW_ACCEL_FAILED is deprecated and should not be used. */
#define MBEDTLS_ERR_ARC4_HW_ACCEL_FAILED                  -0x0019  
#ifdef __cplusplus
extern "C" {
#endif

#if !defined(MBEDTLS_ARC4_ALT)
// Regular implementation
//

typedef struct mbedtls_arc4_context
{
    int x;                      
    int y;                      
    unsigned char m[256];       
}
mbedtls_arc4_context;

#else  /* MBEDTLS_ARC4_ALT */
#include "arc4_alt.h"
#endif /* MBEDTLS_ARC4_ALT */

void mbedtls_arc4_init( mbedtls_arc4_context *ctx );

void mbedtls_arc4_free( mbedtls_arc4_context *ctx );

void mbedtls_arc4_setup( mbedtls_arc4_context *ctx, const unsigned char *key,
                 unsigned int keylen );

int mbedtls_arc4_crypt( mbedtls_arc4_context *ctx, size_t length, const unsigned char *input,
                unsigned char *output );

int mbedtls_arc4_self_test( int verbose );

#ifdef __cplusplus
}
#endif

#endif /* arc4.h */