2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
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
10 #ifndef OPENSSL_CAST_H
11 # define OPENSSL_CAST_H
14 # include <openssl/macros.h>
15 # ifndef OPENSSL_NO_DEPRECATED_3_0
16 # define HEADER_CAST_H
19 # include <openssl/opensslconf.h>
21 # ifndef OPENSSL_NO_CAST
27 # define CAST_KEY_LENGTH 16
29 # ifndef OPENSSL_NO_DEPRECATED_3_0
31 # define CAST_ENCRYPT 1
32 # define CAST_DECRYPT 0
34 # define CAST_LONG unsigned int
36 typedef struct cast_key_st {
38 int short_key; /* Use reduced rounds for short key */
41 # endif /* OPENSSL_NO_DEPRECATED_3_0 */
42 # ifndef OPENSSL_NO_DEPRECATED_3_0
44 void CAST_set_key(CAST_KEY *key, int len, const unsigned char *data);
46 void CAST_ecb_encrypt(const unsigned char *in, unsigned char *out,
47 const CAST_KEY *key, int enc);
49 void CAST_encrypt(CAST_LONG *data, const CAST_KEY *key);
51 void CAST_decrypt(CAST_LONG *data, const CAST_KEY *key);
53 void CAST_cbc_encrypt(const unsigned char *in, unsigned char *out,
54 long length, const CAST_KEY *ks, unsigned char *iv,
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);
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);