telnetd/libtelnet/encrypt.h
2000-02-24 19:28:31 +00:00

115 lines
4.1 KiB
C

/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* 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 above 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 software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS 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.
*
* @(#)encrypt.h 8.1 (Berkeley) 6/4/93
* $FreeBSD$
*/
/*
* Copyright (C) 1990 by the Massachusetts Institute of Technology
*
* Export of this software from the United States of America is assumed
* to require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#ifdef ENCRYPTION
# ifndef __ENCRYPTION__
# define __ENCRYPTION__
#define DIR_DECRYPT 1
#define DIR_ENCRYPT 2
#include <openssl/des.h>
typedef unsigned char Block[8];
typedef unsigned char *BlockT;
#if 0
typedef struct { Block __; } Schedule[16];
#else
#define Schedule des_key_schedule
#endif
#define VALIDKEY(key) ( key[0] | key[1] | key[2] | key[3] | \
key[4] | key[5] | key[6] | key[7])
#define SAMEKEY(k1, k2) (!bcmp((void *)k1, (void *)k2, sizeof(Block)))
typedef struct {
short type;
int length;
unsigned char *data;
} Session_Key;
# if !defined(P)
# ifdef __STDC__
# define P(x) x
# else
# define P(x) ()
# endif
# endif
typedef struct {
char *name;
int type;
void (*output) P((unsigned char *, int));
int (*input) P((int));
void (*init) P((int));
int (*start) P((int, int));
int (*is) P((unsigned char *, int));
int (*reply) P((unsigned char *, int));
void (*session) P((Session_Key *, int));
int (*keyid) P((int, unsigned char *, int *));
void (*printsub) P((unsigned char *, int, unsigned char *, int));
} Encryptions;
#define SK_DES 1 /* Matched Kerberos v5 KEYTYPE_DES */
#include "enc-proto.h"
extern int encrypt_debug_mode;
extern int (*decrypt_input) P((int));
extern void (*encrypt_output) P((unsigned char *, int));
# endif /* __ENCRYPTION__ */
#endif /* ENCRYPTION */