include/rpc/des_crypt.h

   1 /*
   2  * @(#)des_crypt.h      2.1 88/08/11 4.0 RPCSRC;        from 1.4 88/02/08 (C) 1986 SMI
   3  * $FreeBSD: src/include/rpc/des_crypt.h,v 1.4 2002/03/23 17:24:55 imp Exp $
   4  * $DragonFly: src/include/rpc/des_crypt.h,v 1.3 2003/11/14 01:01:50 dillon Exp $
   5  *
   6  * des_crypt.h, des library routine interface
   7  * Copyright (C) 1986, Sun Microsystems, Inc.
   8  */
   9 /*-
  10  * Copyright (c) 2009, Sun Microsystems, Inc.
  11  * All rights reserved.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions are met:
  15  * - Redistributions of source code must retain the above copyright notice,
  16  *   this list of conditions and the following disclaimer.
  17  * - Redistributions in binary form must reproduce the above copyright notice,
  18  *   this list of conditions and the following disclaimer in the documentation
  19  *   and/or other materials provided with the distribution.
  20  * - Neither the name of Sun Microsystems, Inc. nor the names of its
  21  *   contributors may be used to endorse or promote products derived
  22  *   from this software without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  34  * POSSIBILITY OF SUCH DAMAGE.
  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
  88 int cbc_crypt( char *, char *, unsigned int, unsigned int, char *);
  89 __END_DECLS
  90
  91 /*
  92  * Electronic Code Book mode
  93  */
  94 __BEGIN_DECLS
  95 int 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
 103 void des_setparity( char *);
 104 __END_DECLS
 105
 106 #endif  /* _DES_DES_CRYPT_H */