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rc4.h
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1 /*
2  * File: rc4.h
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License along
15  * with this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17  *
18  * Purpose:
19  *
20  * Functions:
21  *
22  * Revision History:
23  *
24  * Author: Kyle Hsu
25  *
26  * Date: Sep 4, 2002
27  *
28  */
29 
30 #ifndef __RC4_H__
31 #define __RC4_H__
32 
33 #include "ttype.h"
34 
35 /*--------------------- Export Definitions -------------------------*/
36 /*--------------------- Export Types ------------------------------*/
37 typedef struct {
38  unsigned int ux;
39  unsigned int uy;
40  BYTE abystate[256];
41 } RC4Ext, *PRC4Ext;
42 
43 void rc4_init(PRC4Ext pRC4, PBYTE pbyKey, unsigned int cbKey_len);
44 unsigned int rc4_byte(PRC4Ext pRC4);
45 void rc4_encrypt(PRC4Ext pRC4, PBYTE pbyDest, PBYTE pbySrc,
46  unsigned int cbData_len);
47 
48 #endif /* __RC4_H__ */