sys/crypto/arc4/arc4.h

   1 /*      $NetBSD: arc4.h,v 1.2.6.3 2004/09/21 13:26:15 skrll Exp $       */
   2
   3 /*
   4  * ARC4 implementation
   5  *      A Stream Cipher Encryption Algorithm "Arcfour"
   6  *      <draft-kaukonen-cipher-arcfour-03.txt>
   7  */
   8
   9 /*        This code illustrates a sample implementation
  10  *                 of the Arcfour algorithm
  11  *         Copyright (c) April 29, 1997 Kalle Kaukonen.
  12  *                    All Rights Reserved.
  13  *
  14  * Redistribution and use in source and binary forms, with or
  15  * without modification, are permitted provided that this copyright
  16  * notice and disclaimer are retained.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY KALLE KAUKONEN AND CONTRIBUTORS ``AS
  19  * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  21  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL KALLE
  22  * KAUKONEN OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _CRYPTO_ARC4_H_
  33 #define _CRYPTO_ARC4_H_
  34
  35 int arc4_ctxlen(void);
  36 void arc4_setkey(void *, const u_char *, unsigned int);
  37 void arc4_encrypt(void *, u_char *, const u_char *, int);
  38 void arc4_decrypt(void *, u_char *, const u_char *, int);
  39
  40 #endif /* _CRYPTO_ARC4_H_ */