2 * Copyright 1995-2016 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
26 # define CAST_ENCRYPT 1
27 # define CAST_DECRYPT 0
29 # define CAST_LONG unsigned int
32 # define CAST_KEY_LENGTH 16
34 typedef struct cast_key_st {
36 int short_key; /* Use reduced rounds for short key */
39 void CAST_set_key(CAST_KEY *key, int len, const unsigned char *data);
40 void CAST_ecb_encrypt(const unsigned char *in, unsigned char *out,
41 const CAST_KEY *key, int enc);
42 void CAST_encrypt(CAST_LONG *data, const CAST_KEY *key);
43 void CAST_decrypt(CAST_LONG *data, const CAST_KEY *key);
44 void CAST_cbc_encrypt(const unsigned char *in, unsigned char *out,
45 long length, const CAST_KEY *ks, unsigned char *iv,
47 void CAST_cfb64_encrypt(const unsigned char *in, unsigned char *out,
48 long length, const CAST_KEY *schedule,
49 unsigned char *ivec, int *num, int enc);
50 void CAST_ofb64_encrypt(const unsigned char *in, unsigned char *out,
51 long length, const CAST_KEY *schedule,
52 unsigned char *ivec, int *num);