release/src-rt-6.x.4708/include/bcmcrypto/rc4.h

   1 /*
   2  * rc4.h
   3  * RC4 stream cipher
   4  *
   5  * Copyright (C) 2012, Broadcom Corporation. All Rights Reserved.
   6  *
   7  * Permission to use, copy, modify, and/or distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  14  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  16  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  17  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  *
  19  * $Id: rc4.h 241182 2011-02-17 21:50:03Z $
  20  */
  21
  22 #ifndef _RC4_H_
  23 #define _RC4_H_
  24
  25 #include <typedefs.h>
  26
  27 #define RC4_STATE_NBYTES 256
  28
  29 typedef struct rc4_ks {
  30         uchar state[RC4_STATE_NBYTES];
  31         uchar x;
  32         uchar y;
  33 } rc4_ks_t;
  34
  35 void BCMROMFN(prepare_key)(uchar *key_data_ptr, int key_data_len, rc4_ks_t *key);
  36
  37 void BCMROMFN(rc4)(uchar *buffer_ptr, int buffer_len, rc4_ks_t *key);
  38
  39 #endif /* _RC4_H_ */