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. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	@(#)encrypt.h	8.1 (Berkeley) 6/4/93
30 * $FreeBSD: stable/11/contrib/telnet/libtelnet/encrypt.h 351432 2019-08-23 17:40:47Z emaste $
31 */
32
33/*
34 * Copyright (C) 1990 by the Massachusetts Institute of Technology
35 *
36 * Export of this software from the United States of America is assumed
37 * to require a specific license from the United States Government.
38 * It is the responsibility of any person or organization contemplating
39 * export to obtain such a license before exporting.
40 *
41 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
42 * distribute this software and its documentation for any purpose and
43 * without fee is hereby granted, provided that the above copyright
44 * notice appear in all copies and that both that copyright notice and
45 * this permission notice appear in supporting documentation, and that
46 * the name of M.I.T. not be used in advertising or publicity pertaining
47 * to distribution of the software without specific, written prior
48 * permission.  M.I.T. makes no representations about the suitability of
49 * this software for any purpose.  It is provided "as is" without express
50 * or implied warranty.
51 */
52
53#ifdef	ENCRYPTION
54# ifndef __ENCRYPTION__
55# define __ENCRYPTION__
56
57#define	DIR_DECRYPT		1
58#define	DIR_ENCRYPT		2
59
60#include <openssl/des.h>
61typedef	unsigned char Block[8];
62typedef unsigned char *BlockT;
63#if 0
64typedef struct { Block __; } Schedule[16];
65#else
66#define Schedule des_key_schedule
67#endif
68
69#define	VALIDKEY(key)	( key[0] | key[1] | key[2] | key[3] | \
70			  key[4] | key[5] | key[6] | key[7])
71
72#define	SAMEKEY(k1, k2)	(!bcmp((void *)k1, (void *)k2, sizeof(Block)))
73
74typedef	struct {
75	short		type;
76	int		length;
77	unsigned char	*data;
78} Session_Key;
79
80typedef struct {
81	const char *name;
82	int	type;
83	void	(*output)(unsigned char *, int);
84	int	(*input)(int);
85	void	(*init)(int);
86	int	(*start)(int, int);
87	int	(*is)(unsigned char *, int);
88	int	(*reply)(unsigned char *, int);
89	void	(*session)(Session_Key *, int);
90	int	(*keyid)(int, unsigned char *, int *);
91	void	(*printsub)(unsigned char *, int, unsigned char *, int);
92} Encryptions;
93
94#define	SK_DES		1	/* Matched Kerberos v5 KEYTYPE_DES */
95
96#include "enc-proto.h"
97
98extern int encrypt_debug_mode;
99extern int (*decrypt_input)(int);
100extern void (*encrypt_output)(unsigned char *, int);
101# endif /* __ENCRYPTION__ */
102#endif /* ENCRYPTION */
103