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blowfish.h revision 1.1 
      1 /*	$NetBSD: blowfish.h,v 1.1 2000/06/14 19:45:34 thorpej Exp $	*/
      2 /*	$KAME: blowfish.h,v 1.4 2000/06/14 10:41:16 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 /* If you make this 'unsigned int' the pointer variants will work on
     73  * the Alpha, otherwise they will not.  Strangly using the '8 byte'
     74  * BF_LONG and the default 'non-pointer' inner loop is the best configuration
     75  * for the Alpha */
     76 #define BF_LONG unsigned long
     77 
     78 #define BF_ROUNDS	16
     79 #define BF_BLOCK	8
     80 
     81 typedef struct bf_key_st
     82 	{
     83 	BF_LONG P[BF_ROUNDS+2];
     84 	BF_LONG S[4*256];
     85 	} BF_KEY;
     86 
     87 #ifndef NOPROTO
     88 
     89 void BF_set_key(BF_KEY *key, int len, unsigned char *data);
     90 void BF_ecb_encrypt(unsigned char *in,unsigned char *out,BF_KEY *key,
     91 	int encrypt);
     92 void BF_encrypt(BF_LONG *data,BF_KEY *key,int encrypt);
     93 void BF_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
     94 	BF_KEY *ks, unsigned char *iv, int encrypt);
     95 void BF_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
     96 	BF_KEY *schedule, unsigned char *ivec, int *num, int encrypt);
     97 void BF_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
     98 	BF_KEY *schedule, unsigned char *ivec, int *num);
     99 char *BF_options(void);
    100 
    101 /* added by itojun */
    102 struct mbuf;
    103 int BF_cbc_encrypt_m(struct mbuf *, int, int, BF_KEY *, unsigned char *, int);
    104 
    105 #else
    106 
    107 void BF_set_key();
    108 void BF_ecb_encrypt();
    109 void BF_encrypt();
    110 void BF_cbc_encrypt();
    111 void BF_cfb64_encrypt();
    112 void BF_ofb64_encrypt();
    113 char *BF_options();
    114 
    115 /* added by itojun */
    116 void BF_cbc_encrypt_m();
    117 
    118 #endif
    119 
    120 #ifdef  __cplusplus
    121 }
    122 #endif
    123 
    124 #endif
    125