1 /* $OpenBSD: cast.h,v 1.12 2014/07/10 22:45:56 jsing Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as core.stdc.config.c_long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 module libressl_d.openssl.cast_;
59 
60 
61 private static import core.stdc.config;
62 public import libressl_d.openssl.opensslconf;
63 
64 extern (C):
65 nothrow @nogc:
66 
67 version (OPENSSL_NO_CAST) {
68 	static assert(false, "CAST is disabled.");
69 }
70 
71 enum CAST_ENCRYPT = 1;
72 enum CAST_DECRYPT = 0;
73 
74 alias CAST_LONG = uint;
75 
76 enum CAST_BLOCK = 8;
77 enum CAST_KEY_LENGTH = 16;
78 
79 struct cast_key_st
80 {
81 	.CAST_LONG[32] data;
82 
83 	/**
84 	 * Use reduced rounds for short key
85 	 */
86 	int short_key;
87 }
88 
89 alias CAST_KEY = .cast_key_st;
90 
91 void CAST_set_key(.CAST_KEY* key, int len, const (ubyte)* data);
92 void CAST_ecb_encrypt(const (ubyte)* in_, ubyte* out_, const (.CAST_KEY)* key, int enc);
93 void CAST_encrypt(.CAST_LONG* data, const (.CAST_KEY)* key);
94 void CAST_decrypt(.CAST_LONG* data, const (.CAST_KEY)* key);
95 void CAST_cbc_encrypt(const (ubyte)* in_, ubyte* out_, core.stdc.config.c_long length_, const (.CAST_KEY)* ks, ubyte* iv, int enc);
96 void CAST_cfb64_encrypt(const (ubyte)* in_, ubyte* out_, core.stdc.config.c_long length_, const (.CAST_KEY)* schedule, ubyte* ivec, int* num, int enc);
97 void CAST_ofb64_encrypt(const (ubyte)* in_, ubyte* out_, core.stdc.config.c_long length_, const (.CAST_KEY)* schedule, ubyte* ivec, int* num);