crypto_arc4.h

00001 /*
00002 MiniTLS - A super trimmed down TLS/SSL Library for embedded devices
00003 Author: Donatien Garnier
00004 Copyright (C) 2013-2014 AppNearMe Ltd
00005 
00006 This program is free software; you can redistribute it and/or
00007 modify it under the terms of the GNU General Public License
00008 as published by the Free Software Foundation; either version 2
00009 of the License, or (at your option) any later version.
00010 
00011 This program is distributed in the hope that it will be useful,
00012 but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014 GNU General Public License for more details.
00015 
00016 You should have received a copy of the GNU General Public License
00017 along with this program; if not, write to the Free Software
00018 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00019 *//**
00020  * \file crypto_arc4.h
00021  * \copyright Copyright (c) AppNearMe Ltd 2014
00022  * \author Donatien Garnier
00023  */
00024 
00025 #ifndef CRYPTO_ARC4_H_
00026 #define CRYPTO_ARC4_H_
00027 
00028 #ifdef __cplusplus
00029 extern "C" {
00030 #endif
00031 
00032 typedef struct __crypto_arc4
00033 {
00034   int i;
00035   int j;
00036   uint8_t state[256];
00037 } crypto_arc4_t;
00038 
00039 void crypto_arc4_init(crypto_arc4_t* arc4, const uint8_t* key, size_t key_size);
00040 
00041 void crypto_arc4_encrypt(crypto_arc4_t* arc4, const uint8_t* plaintext, uint8_t* ciphertext, size_t length);
00042 #define crypto_arc4_decrypt(arc4, ciphertext, plaintext, length) crypto_arc4_encrypt(arc4, ciphertext, plaintext, length)
00043 
00044 void crypto_arc4_process(crypto_arc4_t* arc4, buffer_t* buffer);
00045 
00046 
00047 
00048 #ifdef __cplusplus
00049 }
00050 #endif
00051 
00052 #endif /* CRYPTO_ARC4_H_ */