wolfSSL SSL/TLS library, support up to TLS1.3
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arc4.h
00001 /* arc4.h 00002 * 00003 * Copyright (C) 2006-2020 wolfSSL Inc. 00004 * 00005 * This file is part of wolfSSL. 00006 * 00007 * wolfSSL is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 2 of the License, or 00010 * (at your option) any later version. 00011 * 00012 * wolfSSL is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with this program; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA 00020 */ 00021 00022 /*! 00023 \file wolfssl/wolfcrypt/arc4.h 00024 */ 00025 00026 #ifndef WOLF_CRYPT_ARC4_H 00027 #define WOLF_CRYPT_ARC4_H 00028 00029 #include <wolfssl/wolfcrypt/types.h > 00030 00031 #ifdef __cplusplus 00032 extern "C" { 00033 #endif 00034 00035 #ifdef WOLFSSL_ASYNC_CRYPT 00036 #include <wolfssl/wolfcrypt/async.h> 00037 #endif 00038 00039 enum { 00040 ARC4_ENC_TYPE = 4, /* cipher unique type */ 00041 ARC4_STATE_SIZE = 256, 00042 RC4_KEY_SIZE = 16, /* always 128bit */ 00043 }; 00044 00045 /* ARC4 encryption and decryption */ 00046 typedef struct Arc4 { 00047 byte x; 00048 byte y; 00049 byte state[ARC4_STATE_SIZE]; 00050 #ifdef WOLFSSL_ASYNC_CRYPT 00051 WC_ASYNC_DEV asyncDev; 00052 #endif 00053 void* heap; 00054 } Arc4; 00055 00056 WOLFSSL_API int wc_Arc4Process(Arc4*, byte*, const byte*, word32); 00057 WOLFSSL_API int wc_Arc4SetKey(Arc4*, const byte*, word32); 00058 00059 WOLFSSL_API int wc_Arc4Init(Arc4*, void*, int); 00060 WOLFSSL_API void wc_Arc4Free(Arc4*); 00061 00062 #ifdef __cplusplus 00063 } /* extern "C" */ 00064 #endif 00065 00066 00067 #endif /* WOLF_CRYPT_ARC4_H */ 00068 00069
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