des_crypt.h revision 259065 
1/*
2 * @(#)des_crypt.h	2.1 88/08/11 4.0 RPCSRC;	from 1.4 88/02/08 (C) 1986 SMI
3 * $FreeBSD: releng/10.0/include/rpc/des_crypt.h 240062 2012-09-02 22:23:23Z pfg $
4 *
5 * des_crypt.h, des library routine interface
6 * Copyright (C) 1986, Sun Microsystems, Inc.
7 */
8/*
9 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
10 * unrestricted use provided that this legend is included on all tape
11 * media and as a part of the software program in whole or part.  Users
12 * may copy or modify Sun RPC without charge, but are not authorized
13 * to license or distribute it to anyone else except as part of a product or
14 * program developed by the user.
15 *
16 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
17 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
19 *
20 * Sun RPC is provided with no support and without any obligation on the
21 * part of Sun Microsystems, Inc. to assist in its use, correction,
22 * modification or enhancement.
23 *
24 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
25 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
26 * OR ANY PART THEREOF.
27 *
28 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
29 * or profits or other special, indirect and consequential damages, even if
30 * Sun has been advised of the possibility of such damages.
31 *
32 * Sun Microsystems, Inc.
33 * 2550 Garcia Avenue
34 * Mountain View, California  94043
35 */
36/*
37 * Copyright (c) 1986 - 1991 by Sun Microsystems, Inc.
38 */
39
40/*
41 * des_crypt.h, des library routine interface
42 */
43
44#ifndef _DES_DES_CRYPT_H
45#define _DES_DES_CRYPT_H
46
47#include <sys/cdefs.h>
48#include <rpc/rpc.h>
49
50#define DES_MAXDATA 8192	/* max bytes encrypted in one call */
51#define DES_DIRMASK (1 << 0)
52#define DES_ENCRYPT (0*DES_DIRMASK)	/* Encrypt */
53#define DES_DECRYPT (1*DES_DIRMASK)	/* Decrypt */
54
55
56#define DES_DEVMASK (1 << 1)
57#define	DES_HW (0*DES_DEVMASK)	/* Use hardware device */
58#define DES_SW (1*DES_DEVMASK)	/* Use software device */
59
60
61#define DESERR_NONE 0	/* succeeded */
62#define DESERR_NOHWDEVICE 1	/* succeeded, but hw device not available */
63#define DESERR_HWERROR 2	/* failed, hardware/driver error */
64#define DESERR_BADPARAM 3	/* failed, bad parameter to call */
65
66#define DES_FAILED(err) \
67	((err) > DESERR_NOHWDEVICE)
68
69/*
70 * cbc_crypt()
71 * ecb_crypt()
72 *
73 * Encrypt (or decrypt) len bytes of a buffer buf.
74 * The length must be a multiple of eight.
75 * The key should have odd parity in the low bit of each byte.
76 * ivec is the input vector, and is updated to the new one (cbc only).
77 * The mode is created by oring together the appropriate parameters.
78 * DESERR_NOHWDEVICE is returned if DES_HW was specified but
79 * there was no hardware to do it on (the data will still be
80 * encrypted though, in software).
81 */
82
83
84/*
85 * Cipher Block Chaining mode
86 */
87__BEGIN_DECLS
88int cbc_crypt( char *, char *, unsigned int, unsigned int, char *);
89__END_DECLS
90
91/*
92 * Electronic Code Book mode
93 */
94__BEGIN_DECLS
95int ecb_crypt( char *, char *, unsigned int, unsigned int );
96__END_DECLS
97
98/*
99 * Set des parity for a key.
100 * DES parity is odd and in the low bit of each byte
101 */
102__BEGIN_DECLS
103void des_setparity( char *);
104__END_DECLS
105
106#endif  /* _DES_DES_CRYPT_H */
107