text: /*
   * Copyright 1995-2016 The Opentls Project Authors. All Rights Reserved.
   *
   * Licensed under the Apache License 2.0 (the "License").  You may not use
   * this file except in compliance with the License.  You can obtain a copy
   * in the file LICENSE in the source distribution or at
   * https://www.opentls.org/source/license.html
   */
  
  #ifndef OPENtls_CAST_H
  # define OPENtls_CAST_H
  # pragma once
  
  # include <opentls/macros.h>
  # ifndef OPENtls_NO_DEPRECATED_3_0
  #  define HEADER_CAST_H
  # endif
  
  # include <opentls/opentlsconf.h>
  
  # ifndef OPENtls_NO_CAST
  # ifdef  __cplusplus
  extern "C" {
  # endif
  
  # define CAST_BLOCK      8
  # define CAST_KEY_LENGTH 16
  
  # ifndef OPENtls_NO_DEPRECATED_3_0
  
  #  define CAST_ENCRYPT    1
  #  define CAST_DECRYPT    0
  
  #  define CAST_LONG unsigned int
  
  typedef struct cast_key_st {
      CAST_LONG data[32];
      int short_key;              /* Use reduced rounds for short key */
  } CAST_KEY;
  
  # endif /* OPENtls_NO_DEPRECATED_3_0 */
  
  DEPRECATEDIN_3_0(void CAST_set_key(CAST_KEY *key, int len,
                                     const unsigned char *data))
  DEPRECATEDIN_3_0(void CAST_ecb_encrypt(const unsigned char *in,
                                         unsigned char *out,
                                         const CAST_KEY *key,
                                         int enc))
  DEPRECATEDIN_3_0(void CAST_encrypt(CAST_LONG *data,
                                     const CAST_KEY *key))
  DEPRECATEDIN_3_0(void CAST_decrypt(CAST_LONG *data,
                                     const CAST_KEY *key))
  DEPRECATEDIN_3_0(void CAST_cbc_encrypt(const unsigned char *in,
                                         unsigned char *out,
                                         long length,
                                         const CAST_KEY *ks,
                                         unsigned char *iv,
                                         int enc))
  DEPRECATEDIN_3_0(void CAST_cfb64_encrypt(const unsigned char *in,
                                           unsigned char *out,
                                           long length,
                                           const CAST_KEY *schedule,
                                           unsigned char *ivec,
                                           int *num,
                                           int enc))
  DEPRECATEDIN_3_0(void CAST_ofb64_encrypt(const unsigned char *in,
                                           unsigned char *out,
                                           long length,
                                           const CAST_KEY *schedule,
                                           unsigned char *ivec,
                                           int *num))
  
  # ifdef  __cplusplus
  }
  # endif
  # endif
  
  #endif
  