1/*
2 * @(#)des_crypt.h	2.1 88/08/11 4.0 RPCSRC;	from 1.4 88/02/08 (C) 1986 SMI
3 * $FreeBSD$
4 *
5 * des_crypt.h, des library routine interface
6 * Copyright (C) 1986, Sun Microsystems, Inc.
7 */
8/*-
9 * SPDX-License-Identifier: BSD-3-Clause
10 *
11 * Copyright (c) 2009, Sun Microsystems, Inc.
12 * All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are met:
16 * - Redistributions of source code must retain the above copyright notice,
17 *   this list of conditions and the following disclaimer.
18 * - Redistributions in binary form must reproduce the above copyright notice,
19 *   this list of conditions and the following disclaimer in the documentation
20 *   and/or other materials provided with the distribution.
21 * - Neither the name of Sun Microsystems, Inc. nor the names of its
22 *   contributors may be used to endorse or promote products derived
23 *   from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37/*
38 * Copyright (c) 1986 - 1991 by Sun Microsystems, Inc.
39 */
40
41/*
42 * des_crypt.h, des library routine interface
43 */
44
45#ifndef _DES_DES_CRYPT_H
46#define _DES_DES_CRYPT_H
47
48#include <sys/cdefs.h>
49#include <rpc/rpc.h>
50
51#define DES_MAXDATA 8192	/* max bytes encrypted in one call */
52#define DES_DIRMASK (1 << 0)
53#define DES_ENCRYPT (0*DES_DIRMASK)	/* Encrypt */
54#define DES_DECRYPT (1*DES_DIRMASK)	/* Decrypt */
55
56
57#define DES_DEVMASK (1 << 1)
58#define	DES_HW (0*DES_DEVMASK)	/* Use hardware device */
59#define DES_SW (1*DES_DEVMASK)	/* Use software device */
60
61
62#define DESERR_NONE 0	/* succeeded */
63#define DESERR_NOHWDEVICE 1	/* succeeded, but hw device not available */
64#define DESERR_HWERROR 2	/* failed, hardware/driver error */
65#define DESERR_BADPARAM 3	/* failed, bad parameter to call */
66
67#define DES_FAILED(err) \
68	((err) > DESERR_NOHWDEVICE)
69
70/*
71 * cbc_crypt()
72 * ecb_crypt()
73 *
74 * Encrypt (or decrypt) len bytes of a buffer buf.
75 * The length must be a multiple of eight.
76 * The key should have odd parity in the low bit of each byte.
77 * ivec is the input vector, and is updated to the new one (cbc only).
78 * The mode is created by oring together the appropriate parameters.
79 * DESERR_NOHWDEVICE is returned if DES_HW was specified but
80 * there was no hardware to do it on (the data will still be
81 * encrypted though, in software).
82 */
83
84
85/*
86 * Cipher Block Chaining mode
87 */
88__BEGIN_DECLS
89int cbc_crypt( char *, char *, unsigned int, unsigned int, char *);
90__END_DECLS
91
92/*
93 * Electronic Code Book mode
94 */
95__BEGIN_DECLS
96int ecb_crypt( char *, char *, unsigned int, unsigned int );
97__END_DECLS
98
99/*
100 * Set des parity for a key.
101 * DES parity is odd and in the low bit of each byte
102 */
103__BEGIN_DECLS
104void des_setparity( char *);
105__END_DECLS
106
107#endif  /* _DES_DES_CRYPT_H */
108