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 * $FreeBSD: src/crypto/telnet/libtelnet/encrypt.h,v 1.4.2.1 2002/04/13 10:59:07 markm Exp $
35 */
36
37/*
38 * Copyright (C) 1990 by the Massachusetts Institute of Technology
39 *
40 * Export of this software from the United States of America is assumed
41 * to require a specific license from the United States Government.
42 * It is the responsibility of any person or organization contemplating
43 * export to obtain such a license before exporting.
44 *
45 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
46 * distribute this software and its documentation for any purpose and
47 * without fee is hereby granted, provided that the above copyright
48 * notice appear in all copies and that both that copyright notice and
49 * this permission notice appear in supporting documentation, and that
50 * the name of M.I.T. not be used in advertising or publicity pertaining
51 * to distribution of the software without specific, written prior
52 * permission.  M.I.T. makes no representations about the suitability of
53 * this software for any purpose.  It is provided "as is" without express
54 * or implied warranty.
55 */
56
57#ifdef	ENCRYPTION
58# ifndef __ENCRYPTION__
59# define __ENCRYPTION__
60
61#define	DIR_DECRYPT		1
62#define	DIR_ENCRYPT		2
63
64#include <des.h>
65typedef	unsigned char Block[8];
66typedef unsigned char *BlockT;
67#if 0
68typedef struct { Block __; } Schedule[16];
69#else
70#define Schedule des_key_schedule
71#endif
72
73#define	VALIDKEY(key)	( key[0] | key[1] | key[2] | key[3] | \
74			  key[4] | key[5] | key[6] | key[7])
75
76#define	SAMEKEY(k1, k2)	(!bcmp((void *)k1, (void *)k2, sizeof(Block)))
77
78typedef	struct {
79	short		type;
80	int		length;
81	unsigned char	*data;
82} Session_Key;
83
84typedef struct {
85	const char *name;
86	int	type;
87	void	(*output)(unsigned char *, int);
88	int	(*input)(int);
89	void	(*init)(int);
90	int	(*start)(int, int);
91	int	(*is)(unsigned char *, int);
92	int	(*reply)(unsigned char *, int);
93	void	(*session)(Session_Key *, int);
94	int	(*keyid)(int, unsigned char *, int *);
95	void	(*printsub)(unsigned char *, int, unsigned char *, int);
96} Encryptions;
97
98#define	SK_DES		1	/* Matched Kerberos v5 KEYTYPE_DES */
99
100#include "enc-proto.h"
101
102extern int encrypt_debug_mode;
103extern int (*decrypt_input)(int);
104extern void (*encrypt_output)(unsigned char *, int);
105# endif /* __ENCRYPTION__ */
106#endif /* ENCRYPTION */
107