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- /* arc4.h
- *
- * Copyright (C) 2006-2022 wolfSSL Inc.
- *
- * This file is part of wolfSSL.
- *
- * wolfSSL 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.
- *
- * wolfSSL 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 02110-1335, USA
- */
- /*!
- \file wolfssl/wolfcrypt/arc4.h
- */
- #ifndef WOLF_CRYPT_ARC4_H
- #define WOLF_CRYPT_ARC4_H
- #include <wolfssl/wolfcrypt/types.h>
- #ifdef __cplusplus
- extern "C" {
- #endif
- #ifdef WOLFSSL_ASYNC_CRYPT
- #include <wolfssl/wolfcrypt/async.h>
- #endif
- enum {
- ARC4_ENC_TYPE = 4, /* cipher unique type */
- ARC4_STATE_SIZE = 256,
- RC4_KEY_SIZE = 16, /* always 128bit */
- };
- /* ARC4 encryption and decryption */
- typedef struct Arc4 {
- byte x;
- byte y;
- byte state[ARC4_STATE_SIZE];
- #ifdef WOLFSSL_ASYNC_CRYPT
- WC_ASYNC_DEV asyncDev;
- #endif
- void* heap;
- } Arc4;
- WOLFSSL_API int wc_Arc4Process(Arc4* arc4, byte* out, const byte* in,
- word32 length);
- WOLFSSL_API int wc_Arc4SetKey(Arc4* arc4, const byte* key, word32 length);
- WOLFSSL_API int wc_Arc4Init(Arc4* arc4, void* heap, int devId);
- WOLFSSL_API void wc_Arc4Free(Arc4* arc4);
- #ifdef __cplusplus
- } /* extern "C" */
- #endif
- #endif /* WOLF_CRYPT_ARC4_H */
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