des_crypt.h revision 261046 
1/*
2 * @(#)des_crypt.h	2.1 88/08/11 4.0 RPCSRC;	from 1.4 88/02/08 (C) 1986 SMI
3 * $FreeBSD: stable/10/include/rpc/des_crypt.h 261046 2014-01-22 23:45:27Z mav $
4 *
5 * des_crypt.h, des library routine interface
6 * Copyright (C) 1986, Sun Microsystems, Inc.
7 */
8/*-
9 * Copyright (c) 2009, Sun Microsystems, Inc.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions are met:
14 * - Redistributions of source code must retain the above copyright notice,
15 *   this list of conditions and the following disclaimer.
16 * - Redistributions in binary form must reproduce the above copyright notice,
17 *   this list of conditions and the following disclaimer in the documentation
18 *   and/or other materials provided with the distribution.
19 * - Neither the name of Sun Microsystems, Inc. nor the names of its
20 *   contributors may be used to endorse or promote products derived
21 *   from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35/*
36 * Copyright (c) 1986 - 1991 by Sun Microsystems, Inc.
37 */
38
39/*
40 * des_crypt.h, des library routine interface
41 */
42
43#ifndef _DES_DES_CRYPT_H
44#define _DES_DES_CRYPT_H
45
46#include <sys/cdefs.h>
47#include <rpc/rpc.h>
48
49#define DES_MAXDATA 8192	/* max bytes encrypted in one call */
50#define DES_DIRMASK (1 << 0)
51#define DES_ENCRYPT (0*DES_DIRMASK)	/* Encrypt */
52#define DES_DECRYPT (1*DES_DIRMASK)	/* Decrypt */
53
54
55#define DES_DEVMASK (1 << 1)
56#define	DES_HW (0*DES_DEVMASK)	/* Use hardware device */
57#define DES_SW (1*DES_DEVMASK)	/* Use software device */
58
59
60#define DESERR_NONE 0	/* succeeded */
61#define DESERR_NOHWDEVICE 1	/* succeeded, but hw device not available */
62#define DESERR_HWERROR 2	/* failed, hardware/driver error */
63#define DESERR_BADPARAM 3	/* failed, bad parameter to call */
64
65#define DES_FAILED(err) \
66	((err) > DESERR_NOHWDEVICE)
67
68/*
69 * cbc_crypt()
70 * ecb_crypt()
71 *
72 * Encrypt (or decrypt) len bytes of a buffer buf.
73 * The length must be a multiple of eight.
74 * The key should have odd parity in the low bit of each byte.
75 * ivec is the input vector, and is updated to the new one (cbc only).
76 * The mode is created by oring together the appropriate parameters.
77 * DESERR_NOHWDEVICE is returned if DES_HW was specified but
78 * there was no hardware to do it on (the data will still be
79 * encrypted though, in software).
80 */
81
82
83/*
84 * Cipher Block Chaining mode
85 */
86__BEGIN_DECLS
87int cbc_crypt( char *, char *, unsigned int, unsigned int, char *);
88__END_DECLS
89
90/*
91 * Electronic Code Book mode
92 */
93__BEGIN_DECLS
94int ecb_crypt( char *, char *, unsigned int, unsigned int );
95__END_DECLS
96
97/*
98 * Set des parity for a key.
99 * DES parity is odd and in the low bit of each byte
100 */
101__BEGIN_DECLS
102void des_setparity( char *);
103__END_DECLS
104
105#endif  /* _DES_DES_CRYPT_H */
106