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      1 /*	$NetBSD: blowfish.h,v 1.8 2009/03/14 14:46:08 dsl Exp $	*/
      2 /*	$KAME: blowfish.h,v 1.10 2000/09/18 21:21:20 itojun Exp $	*/
      3 
      4 /* crypto/bf/blowfish.h */
      5 /* Copyright (C) 1995-1997 Eric Young (eay (at) mincom.oz.au)
      6  * All rights reserved.
      7  *
      8  * This package is an SSL implementation written
      9  * by Eric Young (eay (at) mincom.oz.au).
     10  * The implementation was written so as to conform with Netscapes SSL.
     11  *
     12  * This library is free for commercial and non-commercial use as long as
     13  * the following conditions are aheared to.  The following conditions
     14  * apply to all code found in this distribution, be it the RC4, RSA,
     15  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     16  * included with this distribution is covered by the same copyright terms
     17  * except that the holder is Tim Hudson (tjh (at) mincom.oz.au).
     18  *
     19  * Copyright remains Eric Young's, and as such any Copyright notices in
     20  * the code are not to be removed.
     21  * If this package is used in a product, Eric Young should be given attribution
     22  * as the author of the parts of the library used.
     23  * This can be in the form of a textual message at program startup or
     24  * in documentation (online or textual) provided with the package.
     25  *
     26  * Redistribution and use in source and binary forms, with or without
     27  * modification, are permitted provided that the following conditions
     28  * are met:
     29  * 1. Redistributions of source code must retain the copyright
     30  *    notice, this list of conditions and the following disclaimer.
     31  * 2. Redistributions in binary form must reproduce the above copyright
     32  *    notice, this list of conditions and the following disclaimer in the
     33  *    documentation and/or other materials provided with the distribution.
     34  * 3. All advertising materials mentioning features or use of this software
     35  *    must display the following acknowledgement:
     36  *    "This product includes cryptographic software written by
     37  *     Eric Young (eay (at) mincom.oz.au)"
     38  *    The word 'cryptographic' can be left out if the rouines from the library
     39  *    being used are not cryptographic related :-).
     40  * 4. If you include any Windows specific code (or a derivative thereof) from
     41  *    the apps directory (application code) you must include an acknowledgement:
     42  *    "This product includes software written by Tim Hudson (tjh (at) mincom.oz.au)"
     43  *
     44  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     54  * SUCH DAMAGE.
     55  *
     56  * The licence and distribution terms for any publically available version or
     57  * derivative of this code cannot be changed.  i.e. this code cannot simply be
     58  * copied and put under another distribution licence
     59  * [including the GNU Public Licence.]
     60  */
     61 
     62 #ifndef HEADER_BLOWFISH_H
     63 #define HEADER_BLOWFISH_H
     64 
     65 #ifdef  __cplusplus
     66 extern "C" {
     67 #endif
     68 
     69 #define BF_ENCRYPT	1
     70 #define BF_DECRYPT	0
     71 
     72 /* must be 32bit quantity */
     73 #define BF_LONG u_int32_t
     74 
     75 #define BF_ROUNDS	16
     76 #define BF_BLOCK	8
     77 
     78 typedef struct bf_key_st {
     79 	BF_LONG P[BF_ROUNDS+2];
     80 	BF_LONG S[4*256];
     81 } BF_KEY;
     82 
     83 void BF_set_key(BF_KEY *, int, const unsigned char *);
     84 void BF_encrypt(BF_LONG *, const BF_KEY *);
     85 void BF_decrypt(BF_LONG *, const BF_KEY *);
     86 void BF_cbc_encrypt(const unsigned char *, unsigned char *, long,
     87 		    const BF_KEY *, unsigned char *, int);
     88 void BF_ecb_encrypt(const unsigned char *, unsigned char *,
     89 		    const BF_KEY *, int);
     90 
     91 #ifdef  __cplusplus
     92 }
     93 #endif
     94 
     95 #endif
     96