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1 /*
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2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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3 *
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4 * Licensed under the OpenSSL license (the "License"). You may not use
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5 * this file except in compliance with the License. You can obtain a copy
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6 * in the file LICENSE in the source distribution or at
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7 * https://www.openssl.org/source/license.html
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8 */
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9
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10 #ifndef HEADER_CAST_H
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11 # define HEADER_CAST_H
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12
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13 # include <openssl/opensslconf.h>
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14
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15 # ifndef OPENSSL_NO_CAST
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16 # ifdef __cplusplus
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17 extern "C" {
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18 # endif
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19
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20 # define CAST_ENCRYPT 1
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21 # define CAST_DECRYPT 0
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22
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23 # define CAST_LONG unsigned int
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24
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25 # define CAST_BLOCK 8
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26 # define CAST_KEY_LENGTH 16
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27
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28 typedef struct cast_key_st {
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29 CAST_LONG data[32];
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30 int short_key; /* Use reduced rounds for short key */
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31 } CAST_KEY;
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32
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33 void CAST_set_key(CAST_KEY *key, int len, const unsigned char *data);
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34 void CAST_ecb_encrypt(const unsigned char *in, unsigned char *out,
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35 const CAST_KEY *key, int enc);
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36 void CAST_encrypt(CAST_LONG *data, const CAST_KEY *key);
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37 void CAST_decrypt(CAST_LONG *data, const CAST_KEY *key);
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38 void CAST_cbc_encrypt(const unsigned char *in, unsigned char *out,
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39 long length, const CAST_KEY *ks, unsigned char *iv,
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40 int enc);
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41 void CAST_cfb64_encrypt(const unsigned char *in, unsigned char *out,
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42 long length, const CAST_KEY *schedule,
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43 unsigned char *ivec, int *num, int enc);
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44 void CAST_ofb64_encrypt(const unsigned char *in, unsigned char *out,
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45 long length, const CAST_KEY *schedule,
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46 unsigned char *ivec, int *num);
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47
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48 # ifdef __cplusplus
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49 }
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50 # endif
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51 # endif
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52
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53 #endif
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