Home | History | Annotate | Line # | Download | only in libtelnet
encrypt.h revision 1.1 
      1 /*-
      2  * Copyright (c) 1991 The Regents of the University of California.
      3  * 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	5.2 (Berkeley) 3/22/91
     34  */
     35 
     36 /*
     37  * Copyright (C) 1990 by the Massachusetts Institute of Technology
     38  *
     39  * Export of this software from the United States of America is assumed
     40  * to require a specific license from the United States Government.
     41  * It is the responsibility of any person or organization contemplating
     42  * export to obtain such a license before exporting.
     43  *
     44  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
     45  * distribute this software and its documentation for any purpose and
     46  * without fee is hereby granted, provided that the above copyright
     47  * notice appear in all copies and that both that copyright notice and
     48  * this permission notice appear in supporting documentation, and that
     49  * the name of M.I.T. not be used in advertising or publicity pertaining
     50  * to distribution of the software without specific, written prior
     51  * permission.  M.I.T. makes no representations about the suitability of
     52  * this software for any purpose.  It is provided "as is" without express
     53  * or implied warranty.
     54  */
     55 
     56 #ifndef	__ENCRYPT__
     57 #define	__ENCRYPT__
     58 
     59 #define	DIR_DECRYPT		1
     60 #define	DIR_ENCRYPT		2
     61 
     62 typedef	unsigned char Block[8];
     63 typedef unsigned char *BlockT;
     64 typedef struct { Block _; } Schedule[16];
     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)	(!bcmp((void *)k1, (void *)k2, sizeof(Block)))
     70 
     71 typedef	struct {
     72 	short		type;
     73 	int		length;
     74 	unsigned char	*data;
     75 } Session_Key;
     76 
     77 #if	!defined(P)
     78 #ifdef	__STDC__
     79 #define P(x)	x
     80 #else
     81 #define P(x)	()
     82 #endif
     83 #endif
     84 
     85 typedef struct {
     86 	char	*name;
     87 	int	type;
     88 	void	(*output) P((unsigned char *, int));
     89 	int	(*input) P((int));
     90 	void	(*init) P((int));
     91 	int	(*start) P((int, int));
     92 	int	(*is) P((unsigned char *, int));
     93 	int	(*reply) P((unsigned char *, int));
     94 	void	(*session) P((Session_Key *, int));
     95 	int	(*keyid) P((int, unsigned char *, int *));
     96 	void	(*printsub) P((unsigned char *, int, unsigned char *, int));
     97 } Encryptions;
     98 
     99 #define	SK_DES		1	/* Matched Kerberos v5 KEYTYPE_DES */
    100 
    101 #include "enc-proto.h"
    102 
    103 extern int encrypt_debug_mode;
    104 extern int (*decrypt_input) P((int));
    105 extern void (*encrypt_output) P((unsigned char *, int));
    106 #endif
    107