include/openssl/blowfish.h

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef OPENSSL_BLOWFISH_H
  11 # define OPENSSL_BLOWFISH_H
  12 # pragma once
  13
  14 # include <openssl/macros.h>
  15 # ifndef OPENSSL_NO_DEPRECATED_3_0
  16 #  define HEADER_BLOWFISH_H
  17 # endif
  18
  19 # include <openssl/opensslconf.h>
  20
  21 # ifndef OPENSSL_NO_BF
  22 # include <openssl/e_os2.h>
  23 # ifdef  __cplusplus
  24 extern "C" {
  25 # endif
  26
  27 # define BF_ENCRYPT      1
  28 # define BF_DECRYPT      0
  29
  30 /*-
  31  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  32  * ! BF_LONG has to be at least 32 bits wide.                     !
  33  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  34  */
  35 # define BF_LONG unsigned int
  36
  37 # define BF_ROUNDS       16
  38 # define BF_BLOCK        8
  39
  40 typedef struct bf_key_st {
  41     BF_LONG P[BF_ROUNDS + 2];
  42     BF_LONG S[4 * 256];
  43 } BF_KEY;
  44
  45 void BF_set_key(BF_KEY *key, int len, const unsigned char *data);
  46
  47 void BF_encrypt(BF_LONG *data, const BF_KEY *key);
  48 void BF_decrypt(BF_LONG *data, const BF_KEY *key);
  49
  50 void BF_ecb_encrypt(const unsigned char *in, unsigned char *out,
  51                     const BF_KEY *key, int enc);
  52 void BF_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
  53                     const BF_KEY *schedule, unsigned char *ivec, int enc);
  54 void BF_cfb64_encrypt(const unsigned char *in, unsigned char *out,
  55                       long length, const BF_KEY *schedule,
  56                       unsigned char *ivec, int *num, int enc);
  57 void BF_ofb64_encrypt(const unsigned char *in, unsigned char *out,
  58                       long length, const BF_KEY *schedule,
  59                       unsigned char *ivec, int *num);
  60 const char *BF_options(void);
  61
  62 # ifdef  __cplusplus
  63 }
  64 # endif
  65 # endif
  66
  67 #endif