xref: /freebsd/crypto/heimdal/appl/telnet/libtelnet/encrypt.h (revision 50d8893512e3c7160398bff7e3f9f056e1220fc1)
1 /*-
2  * Copyright (c) 1991, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  *	@(#)encrypt.h	8.1 (Berkeley) 6/4/93
34  *
35  *	@(#)encrypt.h	5.2 (Berkeley) 3/22/91
36  */
37 
38 /*
39  * Copyright (C) 1990 by the Massachusetts Institute of Technology
40  *
41  * Export of this software from the United States of America is assumed
42  * to require a specific license from the United States Government.
43  * It is the responsibility of any person or organization contemplating
44  * export to obtain such a license before exporting.
45  *
46  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
47  * distribute this software and its documentation for any purpose and
48  * without fee is hereby granted, provided that the above copyright
49  * notice appear in all copies and that both that copyright notice and
50  * this permission notice appear in supporting documentation, and that
51  * the name of M.I.T. not be used in advertising or publicity pertaining
52  * to distribution of the software without specific, written prior
53  * permission.  M.I.T. makes no representations about the suitability of
54  * this software for any purpose.  It is provided "as is" without express
55  * or implied warranty.
56  */
57 
58 /* $Id: encrypt.h,v 1.7 2001/08/22 20:30:22 assar Exp $ */
59 
60 #ifndef	__ENCRYPT__
61 #define	__ENCRYPT__
62 
63 #define	DIR_DECRYPT		1
64 #define	DIR_ENCRYPT		2
65 
66 #define	VALIDKEY(key)	( key[0] | key[1] | key[2] | key[3] | \
67 			  key[4] | key[5] | key[6] | key[7])
68 
69 #define	SAMEKEY(k1, k2)	(!memcmp(k1, k2, sizeof(des_cblock)))
70 
71 typedef	struct {
72 	short		type;
73 	int		length;
74 	unsigned char	*data;
75 } Session_Key;
76 
77 typedef struct {
78 	char	*name;
79 	int	type;
80 	void	(*output) (unsigned char *, int);
81 	int	(*input) (int);
82 	void	(*init) (int);
83 	int	(*start) (int, int);
84 	int	(*is) (unsigned char *, int);
85 	int	(*reply) (unsigned char *, int);
86 	void	(*session) (Session_Key *, int);
87 	int	(*keyid) (int, unsigned char *, int *);
88 	void	(*printsub) (unsigned char *, int, unsigned char *, int);
89 } Encryptions;
90 
91 #define	SK_DES		1	/* Matched Kerberos v5 KEYTYPE_DES */
92 
93 #ifdef HAVE_OPENSSL
94 #include <openssl/des.h>
95 #define des_new_random_key des_random_key
96 #else
97 #include <des.h>
98 #endif
99 
100 #include "enc-proto.h"
101 
102 extern int encrypt_debug_mode;
103 extern int (*decrypt_input) (int);
104 extern void (*encrypt_output) (unsigned char *, int);
105 #endif
106