/*      $NetBSD: encrypt.h,v 1.10 2024/10/29 13:10:06 kre Exp $ */

/*-
* 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. 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.
*
*      from: @(#)encrypt.h     8.1 (Berkeley) 6/4/93
*/

/*
* 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
#include <sys/cdefs.h>

# ifndef __ENCRYPTION__
# define __ENCRYPTION__

#define DIR_DECRYPT             1
#define DIR_ENCRYPT             2

#define Block des_cblock
typedef unsigned char *BlockT;
#define Schedule des_key_schedule

#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;


typedef struct {
       const char      *name;
       int     type;
       void    (*output)(unsigned char *, int);
       int     (*input)(int);
       void    (*init)(int);
       int     (*start)(int, int);
       int     (*is)(unsigned char *, int);
       int     (*reply)(unsigned char *, int);
       void    (*session)(Session_Key *, int);
       int     (*keyid)(int, unsigned char *, int *);
       void    (*printsub)(unsigned char *, int, unsigned char *, int);
} Encryptions;

#define SK_DES          1       /* Matched Kerberos v5 KEYTYPE_DES */

#include "enc-proto.h"

extern int (*decrypt_input)(int);
extern void (*encrypt_output)(unsigned char *, int);
# endif /* __ENCRYPTION__ */
#endif /* ENCRYPTION */