2019-11-11 18:09:59 +01:00
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/* arc4.h
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*
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2020-07-06 18:05:04 +02:00
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* Copyright (C) 2006-2020 wolfSSL Inc.
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2019-11-11 18:09:59 +01:00
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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/*!
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\file wolfssl/wolfcrypt/arc4.h
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*/
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#ifndef WOLF_CRYPT_ARC4_H
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#define WOLF_CRYPT_ARC4_H
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#include <libs/libwolfssl/wolfcrypt/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef WOLFSSL_ASYNC_CRYPT
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#include <libs/libwolfssl/wolfcrypt/async.h>
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#endif
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enum {
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ARC4_ENC_TYPE = 4, /* cipher unique type */
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ARC4_STATE_SIZE = 256,
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RC4_KEY_SIZE = 16, /* always 128bit */
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};
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/* ARC4 encryption and decryption */
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typedef struct Arc4 {
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byte x;
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byte y;
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byte state[ARC4_STATE_SIZE];
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#ifdef WOLFSSL_ASYNC_CRYPT
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WC_ASYNC_DEV asyncDev;
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#endif
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void* heap;
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} Arc4;
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WOLFSSL_API int wc_Arc4Process(Arc4*, byte*, const byte*, word32);
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WOLFSSL_API int wc_Arc4SetKey(Arc4*, const byte*, word32);
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WOLFSSL_API int wc_Arc4Init(Arc4*, void*, int);
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WOLFSSL_API void wc_Arc4Free(Arc4*);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* WOLF_CRYPT_ARC4_H */
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