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/* crypto/cast/cast.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#ifndef HEADER_CAST_H
# define HEADER_CAST_H
#ifdef __cplusplus
extern "C" {
#endif
# include <openssl/opensslconf.h>
# ifdef OPENSSL_NO_CAST
# error CAST is disabled.
# endif
# define CAST_ENCRYPT 1
# define CAST_DECRYPT 0
# define CAST_LONG unsigned int
# define CAST_BLOCK 8
# define CAST_KEY_LENGTH 16
typedef struct cast_key_st {
CAST_LONG data[32];
int short_key; /* Use reduced rounds for short key */
} CAST_KEY;
# ifdef OPENSSL_FIPS
void private_CAST_set_key(CAST_KEY *key, int len, const unsigned char *data);
# endif
void CAST_set_key(CAST_KEY *key, int len, const unsigned char *data);
void CAST_ecb_encrypt(const unsigned char *in, unsigned char *out,
const CAST_KEY *key, int enc);
void CAST_encrypt(CAST_LONG *data, const CAST_KEY *key);
void CAST_decrypt(CAST_LONG *data, const CAST_KEY *key);
void CAST_cbc_encrypt(const unsigned char *in, unsigned char *out,
long length, const CAST_KEY *ks, unsigned char *iv,
int enc);
void CAST_cfb64_encrypt(const unsigned char *in, unsigned char *out,
long length, const CAST_KEY *schedule,
unsigned char *ivec, int *num, int enc);
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
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