include/openssl/cast.h

   1 /*
   2  * Copyright 1995-2020 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_CAST_H
  11 # define OPENSSL_CAST_H
  12 # pragma once
  13
  14 # include <openssl/macros.h>
  15 # ifndef OPENSSL_NO_DEPRECATED_3_0
  16 #  define HEADER_CAST_H
  17 # endif
  18
  19 # include <openssl/opensslconf.h>
  20
  21 # ifndef OPENSSL_NO_CAST
  22 # ifdef  __cplusplus
  23 extern "C" {
  24 # endif
  25
  26 # define CAST_BLOCK      8
  27 # define CAST_KEY_LENGTH 16
  28
  29 # ifndef OPENSSL_NO_DEPRECATED_3_0
  30
  31 #  define CAST_ENCRYPT    1
  32 #  define CAST_DECRYPT    0
  33
  34 #  define CAST_LONG unsigned int
  35
  36 typedef struct cast_key_st {
  37     CAST_LONG data[32];
  38     int short_key;              /* Use reduced rounds for short key */
  39 } CAST_KEY;
  40
  41 # endif /* OPENSSL_NO_DEPRECATED_3_0 */
  42 # ifndef OPENSSL_NO_DEPRECATED_3_0
  43 OSSL_DEPRECATEDIN_3_0
  44 void CAST_set_key(CAST_KEY *key, int len, const unsigned char *data);
  45 OSSL_DEPRECATEDIN_3_0
  46 void CAST_ecb_encrypt(const unsigned char *in, unsigned char *out,
  47                       const CAST_KEY *key, int enc);
  48 OSSL_DEPRECATEDIN_3_0
  49 void CAST_encrypt(CAST_LONG *data, const CAST_KEY *key);
  50 OSSL_DEPRECATEDIN_3_0
  51 void CAST_decrypt(CAST_LONG *data, const CAST_KEY *key);
  52 OSSL_DEPRECATEDIN_3_0
  53 void CAST_cbc_encrypt(const unsigned char *in, unsigned char *out,
  54                       long length, const CAST_KEY *ks, unsigned char *iv,
  55                       int enc);
  56 OSSL_DEPRECATEDIN_3_0
  57 void CAST_cfb64_encrypt(const unsigned char *in, unsigned char *out,
  58                         long length, const CAST_KEY *schedule,
  59                         unsigned char *ivec, int *num, int enc);
  60 OSSL_DEPRECATEDIN_3_0
  61 void CAST_ofb64_encrypt(const unsigned char *in, unsigned char *out,
  62                         long length, const CAST_KEY *schedule,
  63                         unsigned char *ivec, int *num);
  64 # endif
  65
  66 # ifdef  __cplusplus
  67 }
  68 # endif
  69 # endif
  70
  71 #endif