sys/crypto/blowfish/blowfish.h

   1 /*      $FreeBSD: src/sys/crypto/blowfish/blowfish.h,v 1.1.2.3 2002/03/26 10:12:23 ume Exp $    */
   2 /*      $DragonFly: src/sys/crypto/blowfish/blowfish.h,v 1.3 2003/08/27 10:59:04 rob Exp $      */
   3 /*      $KAME: blowfish.h,v 1.12 2002/02/27 01:33:59 itojun Exp $       */
   4
   5 /* crypto/bf/blowfish.h */
   6 /* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
   7  * All rights reserved.
   8  *
   9  * This package is an SSL implementation written
  10  * by Eric Young (eay@mincom.oz.au).
  11  * The implementation was written so as to conform with Netscapes SSL.
  12  *
  13  * This library is free for commercial and non-commercial use as long as
  14  * the following conditions are aheared to.  The following conditions
  15  * apply to all code found in this distribution, be it the RC4, RSA,
  16  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  17  * included with this distribution is covered by the same copyright terms
  18  * except that the holder is Tim Hudson (tjh@mincom.oz.au).
  19  *
  20  * Copyright remains Eric Young's, and as such any Copyright notices in
  21  * the code are not to be removed.
  22  * If this package is used in a product, Eric Young should be given attribution
  23  * as the author of the parts of the library used.
  24  * This can be in the form of a textual message at program startup or
  25  * in documentation (online or textual) provided with the package.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *    "This product includes cryptographic software written by
  38  *     Eric Young (eay@mincom.oz.au)"
  39  *    The word 'cryptographic' can be left out if the rouines from the library
  40  *    being used are not cryptographic related :-).
  41  * 4. If you include any Windows specific code (or a derivative thereof) from
  42  *    the apps directory (application code) you must include an acknowledgement:
  43  *    "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
  44  *
  45  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  46  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  47  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  48  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  49  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  50  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  51  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  52  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  53  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  54  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  55  * SUCH DAMAGE.
  56  *
  57  * The licence and distribution terms for any publically available version or
  58  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  59  * copied and put under another distribution licence
  60  * [including the GNU Public Licence.]
  61  */
  62
  63 #ifndef HEADER_BLOWFISH_H
  64 #define HEADER_BLOWFISH_H
  65
  66 #ifdef  __cplusplus
  67 extern "C" {
  68 #endif
  69
  70 #define BF_ENCRYPT      1
  71 #define BF_DECRYPT      0
  72
  73 /* must be 32bit quantity */
  74 #define BF_LONG u_int32_t
  75
  76 #define BF_ROUNDS       16
  77 #define BF_BLOCK        8
  78
  79 typedef struct bf_key_st {
  80         BF_LONG P[BF_ROUNDS+2];
  81         BF_LONG S[4*256];
  82 } BF_KEY;
  83
  84 void BF_set_key (BF_KEY *, int, unsigned char *);
  85 void BF_encrypt (BF_LONG *, BF_KEY *);
  86 void BF_decrypt (BF_LONG *, BF_KEY *);
  87 void BF_cbc_encrypt(const unsigned char *, unsigned char *, long,
  88                     const BF_KEY *, unsigned char *, int);
  89
  90 #ifdef  __cplusplus
  91 }
  92 #endif
  93
  94 #endif