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      1 /*
      2  * Copyright 2002 Sun Microsystems, Inc.  All rights reserved.
      3  * Use is subject to license terms.
      4  */
      5 
      6 /*
      7  * Copyright (c) 1991, 1993
      8  *	The Regents of the University of California.  All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	@(#)encrypt.h	8.1 (Berkeley) 6/4/93
     39  */
     40 
     41 /*
     42  * Copyright (C) 1990 by the Massachusetts Institute of Technology
     43  *
     44  * Export of this software from the United States of America may
     45  * require a specific license from the United States Government.
     46  * It is the responsibility of any person or organization contemplating
     47  * export to obtain such a license before exporting.
     48  *
     49  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
     50  * distribute this software and its documentation for any purpose and
     51  * without fee is hereby granted, provided that the above copyright
     52  * notice appear in all copies and that both that copyright notice and
     53  * this permission notice appear in supporting documentation, and that
     54  * the name of M.I.T. not be used in advertising or publicity pertaining
     55  * to distribution of the software without specific, written prior
     56  * permission.  Furthermore if you modify this software you must label
     57  * your software as modified software and not distribute it in such a
     58  * fashion that it might be confused with the original M.I.T. software.
     59  * M.I.T. makes no representations about the suitability of
     60  * this software for any purpose.  It is provided "as is" without express
     61  * or implied warranty.
     62  */
     63 
     64 #ifndef	_ENCRYPT_H
     65 #define	_ENCRYPT_H
     66 
     67 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     68 
     69 #ifdef	__cplusplus
     70 extern "C" {
     71 #endif
     72 
     73 #define	ENCR_LBUF_BUFSIZ	32	  /* short temporary buffer */
     74 #define	SAMEKEY(k1, k2)	(!memcmp((void *)k1, (void *)k2, sizeof (Block))
     75 
     76 #include <arpa/telnet.h>
     77 
     78 typedef struct {
     79 	char	*name;
     80 	int	type;
     81 	void	(*output)(unsigned char *, int);
     82 	int	(*input)(int);
     83 	void	(*init)();
     84 	int	(*start)(int);
     85 	int	(*is)(unsigned char *, int);
     86 	int	(*reply)(unsigned char *, int);
     87 	void	(*session)(Session_Key *);
     88 	int	(*keyid)(int, unsigned char *, int *);
     89 	void	(*printsub)(unsigned char *, int, unsigned char *, int);
     90 } Encryptions;
     91 
     92 #define	SK_DES		1	/* Matched Kerberos v5 ENCTYPE_DES */
     93 
     94 void	encrypt_support(uchar_t *, int);
     95 void	encrypt_init(char *);
     96 void	encrypt_send_supprt(void);
     97 void	encrypt_auto(int);
     98 void	decrypt_auto(int);
     99 void	encrypt_is(unsigned char *, int);
    100 void	encrypt_reply(unsigned char *, int);
    101 void	encrypt_start(uchar_t *, int);
    102 void	encrypt_start_input(int);
    103 void	encrypt_session_key(Session_Key *);
    104 void	encrypt_end(void);
    105 void	encrypt_request_end(void);
    106 void	encrypt_request_start(uchar_t *, int);
    107 void	encrypt_enc_keyid(uchar_t *, int);
    108 void	encrypt_dec_keyid(uchar_t *, int);
    109 void	encrypt_end_input(void);
    110 void	encrypt_end_output(void);
    111 boolean_t	encrypt_is_encrypting(void);
    112 void	encrypt_send_support(void);
    113 void	encrypt_send_keyid(int, unsigned char *, int, int);
    114 void	encrypt_display(void);
    115 void	encrypt_printsub(uchar_t *, int,  uchar_t *, int);
    116 
    117 void	cfb64_encrypt(unsigned char *, int);
    118 int	cfb64_decrypt(int);
    119 void	cfb64_init(void);
    120 int	cfb64_start(int);
    121 int	cfb64_is(unsigned char *, int);
    122 int	cfb64_reply(unsigned char *, int);
    123 void	cfb64_session(Session_Key *);
    124 int	cfb64_keyid(int, unsigned char *, int *);
    125 void	cfb64_printsub(unsigned char *, int, unsigned char *, int);
    126 
    127 extern boolean_t	encrypt_debug_mode;
    128 extern int	(*decrypt_input)(int);
    129 extern void	(*encrypt_output)(unsigned char *, int);
    130 
    131 int	key_file_exists(void);
    132 void	key_lookup(unsigned char *, Block);
    133 void	key_stream_init(Block, Block, int);
    134 unsigned char	key_stream(int, int);
    135 
    136 int	EncryptStatus(void);
    137 int	EncryptEnable(char *, char *);
    138 int	EncryptDisable(char *, char *);
    139 int	EncryptType(char *, char *);
    140 int	EncryptStart(char *);
    141 int	EncryptStartInput(void);
    142 int	EncryptStartOutput(void);
    143 int	EncryptStop(char *);
    144 int	EncryptStopInput(void);
    145 int	EncryptStopOutput(void);
    146 int	EncryptDebug(int);
    147 int	EncryptVerbose(int);
    148 int	EncryptAutoEnc(int);
    149 int	EncryptAutoDec(int);
    150 
    151 #ifdef	__cplusplus
    152 }
    153 #endif
    154 
    155 #endif	/* _ENCRYPT_H */
    156