usr/src/uts/common/des/softdes.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  *
  22  * Copyright 1998 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
  27 /*        All Rights Reserved   */
  28
  29 /*
  30  * Portions of this source code were derived from Berkeley 4.3 BSD
  31  * under license from the Regents of the University of California.
  32  */
  33
  34 #ifndef _SYS_SOFTDES_H
  35 #define _SYS_SOFTDES_H
  36
  37 #ifdef  __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 /*
  42  * softdes.h,  Data types and definition for software DES
  43  */
  44
  45 /*
  46  * A chunk is an area of storage used in three different ways
  47  * - As a 64 bit quantity (in high endian notation)
  48  * - As a 48 bit quantity (6 low order bits per byte)
  49  * - As a 32 bit quantity (first 4 bytes)
  50  */
  51 typedef union {
  52         struct {
  53 /*
  54  * This (and the one farther down) looks awfully backwards???
  55  */
  56 #ifdef _LONG_LONG_LTOH
  57                 uint32_t        _long1;
  58                 uint32_t        _long0;
  59 #else
  60                 uint32_t        _long0;
  61                 uint32_t        _long1;
  62 #endif
  63         } _longs;
  64
  65 #define long0   _longs._long0
  66 #define long1   _longs._long1
  67         struct {
  68 #ifdef _LONG_LONG_LTOH
  69                 uchar_t _byte7;
  70                 uchar_t _byte6;
  71                 uchar_t _byte5;
  72                 uchar_t _byte4;
  73                 uchar_t _byte3;
  74                 uchar_t _byte2;
  75                 uchar_t _byte1;
  76                 uchar_t _byte0;
  77 #else
  78                 uchar_t _byte0;
  79                 uchar_t _byte1;
  80                 uchar_t _byte2;
  81                 uchar_t _byte3;
  82                 uchar_t _byte4;
  83                 uchar_t _byte5;
  84                 uchar_t _byte6;
  85                 uchar_t _byte7;
  86 #endif
  87         } _bytes;
  88 #define byte0   _bytes._byte0
  89 #define byte1   _bytes._byte1
  90 #define byte2   _bytes._byte2
  91 #define byte3   _bytes._byte3
  92 #define byte4   _bytes._byte4
  93 #define byte5   _bytes._byte5
  94 #define byte6   _bytes._byte6
  95 #define byte7   _bytes._byte7
  96 } chunk_t;
  97
  98 /*
  99  * Intermediate key storage
 100  * Created by des_setkey, used by des_encrypt and des_decrypt
 101  * 16 48 bit values
 102  */
 103 struct deskeydata {
 104         chunk_t keyval[16];
 105 };
 106
 107 #ifdef  __cplusplus
 108 }
 109 #endif
 110
 111 #endif  /* _SYS_SOFTDES_H */