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      1 /*	$NetBSD: encrypt.h,v 1.10 2024/10/29 13:10:06 kre Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1991, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	from: @(#)encrypt.h	8.1 (Berkeley) 6/4/93
     32  */
     33 
     34 /*
     35  * Copyright (C) 1990 by the Massachusetts Institute of Technology
     36  *
     37  * Export of this software from the United States of America is assumed
     38  * to require a specific license from the United States Government.
     39  * It is the responsibility of any person or organization contemplating
     40  * export to obtain such a license before exporting.
     41  *
     42  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
     43  * distribute this software and its documentation for any purpose and
     44  * without fee is hereby granted, provided that the above copyright
     45  * notice appear in all copies and that both that copyright notice and
     46  * this permission notice appear in supporting documentation, and that
     47  * the name of M.I.T. not be used in advertising or publicity pertaining
     48  * to distribution of the software without specific, written prior
     49  * permission.  M.I.T. makes no representations about the suitability of
     50  * this software for any purpose.  It is provided "as is" without express
     51  * or implied warranty.
     52  */
     53 
     54 #ifdef	ENCRYPTION
     55 #include <sys/cdefs.h>
     56 
     57 # ifndef __ENCRYPTION__
     58 # define __ENCRYPTION__
     59 
     60 #define	DIR_DECRYPT		1
     61 #define	DIR_ENCRYPT		2
     62 
     63 #define Block des_cblock
     64 typedef unsigned char *BlockT;
     65 #define Schedule des_key_schedule
     66 
     67 #define	VALIDKEY(key)	( key[0] | key[1] | key[2] | key[3] | \
     68 			  key[4] | key[5] | key[6] | key[7])
     69 
     70 #define	SAMEKEY(k1, k2)	(!bcmp((void *)k1, (void *)k2, sizeof(Block)))
     71 
     72 typedef	struct {
     73 	short		type;
     74 	int		length;
     75 	unsigned char	*data;
     76 } Session_Key;
     77 
     78 
     79 typedef struct {
     80 	const char	*name;
     81 	int	type;
     82 	void	(*output)(unsigned char *, int);
     83 	int	(*input)(int);
     84 	void	(*init)(int);
     85 	int	(*start)(int, int);
     86 	int	(*is)(unsigned char *, int);
     87 	int	(*reply)(unsigned char *, int);
     88 	void	(*session)(Session_Key *, int);
     89 	int	(*keyid)(int, unsigned char *, int *);
     90 	void	(*printsub)(unsigned char *, int, unsigned char *, int);
     91 } Encryptions;
     92 
     93 #define	SK_DES		1	/* Matched Kerberos v5 KEYTYPE_DES */
     94 
     95 #include "enc-proto.h"
     96 
     97 extern int (*decrypt_input)(int);
     98 extern void (*encrypt_output)(unsigned char *, int);
     99 # endif /* __ENCRYPTION__ */
    100 #endif /* ENCRYPTION */
    101