wsutil/rc4.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    a partial implementation of RC4 designed for use in the
   5    SMB authentication protocol
   6
   7    Copyright (C) Andrew Tridgell 1998
   8
   9    $Id$
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 2 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program; if not, write to the Free Software
  23    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24 */
  25
  26 #ifndef __RC4_H__
  27 #define __RC4_H__
  28
  29 #include "ws_symbol_export.h"
  30
  31 typedef struct _rc4_state_struct {
  32   unsigned char s_box[256];
  33   unsigned char index_i;
  34   unsigned char index_j;
  35 } rc4_state_struct;
  36
  37 WS_DLL_PUBLIC
  38 void crypt_rc4_init(rc4_state_struct *rc4_state,
  39                     const unsigned char *key, int key_len);
  40
  41 WS_DLL_PUBLIC
  42 void crypt_rc4(rc4_state_struct *rc4_state, unsigned char *data, int data_len);
  43
  44 #endif