bsd/crypto/blowfish/blowfish.h

   1 /* crypto/bf/blowfish.h */
   2 /* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@mincom.oz.au).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@mincom.oz.au).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@mincom.oz.au)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #ifndef HEADER_BLOWFISH_H
  60 #define HEADER_BLOWFISH_H
  61
  62 #ifdef  __cplusplus
  63 extern "C" {
  64 #endif
  65
  66 #define BF_ENCRYPT      1
  67 #define BF_DECRYPT      0
  68
  69 /* If you make this 'unsigned int' the pointer variants will work on
  70  * the Alpha, otherwise they will not.  Strangly using the '8 byte'
  71  * BF_LONG and the default 'non-pointer' inner loop is the best configuration
  72  * for the Alpha */
  73 #define BF_LONG unsigned long
  74
  75 #define BF_ROUNDS       16
  76 #define BF_BLOCK        8
  77
  78 typedef struct bf_key_st
  79         {
  80         BF_LONG P[BF_ROUNDS+2];
  81         BF_LONG S[4*256];
  82         } BF_KEY;
  83
  84 #ifndef NOPROTO
  85
  86 void BF_set_key(BF_KEY *key, int len, unsigned char *data);
  87 void BF_ecb_encrypt(unsigned char *in,unsigned char *out,BF_KEY *key,
  88         int encrypt);
  89 void BF_encrypt(BF_LONG *data,BF_KEY *key,int encrypt);
  90 void BF_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
  91         BF_KEY *ks, unsigned char *iv, int encrypt);
  92 void BF_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
  93         BF_KEY *schedule, unsigned char *ivec, int *num, int encrypt);
  94 void BF_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
  95         BF_KEY *schedule, unsigned char *ivec, int *num);
  96 char *BF_options(void);
  97
  98 /* added by itojun */
  99 struct mbuf;
 100 void BF_cbc_encrypt_m(struct mbuf *, int, int, BF_KEY *,
 101                 unsigned char *, int);
 102
 103 #else
 104
 105 void BF_set_key();
 106 void BF_ecb_encrypt();
 107 void BF_encrypt();
 108 void BF_cbc_encrypt();
 109 void BF_cfb64_encrypt();
 110 void BF_ofb64_encrypt();
 111 char *BF_options();
 112
 113 /* added by itojun */
 114 void BF_cbc_encrypt_m();
 115
 116 #endif
 117
 118 #ifdef  __cplusplus
 119 }
 120 #endif
 121
 122 #endif