usr/src/lib/libbc/inc/include/des/des_crypt.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 /*
  23  * Copyright 2000 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 /*
  31  * Portions of this source code were derived from Berkeley 4.3 BSD
  32  * under license from the Regents of the University of California.
  33  */
  34
  35 #pragma ident   "%Z%%M% %I%     %E% SMI"
  36
  37 /*
  38  * des_crypt.h, des library routine interface
  39  */
  40
  41 #define DES_MAXDATA 8192        /* max bytes encrypted in one call */
  42 #define DES_DIRMASK (1 << 0)
  43 #define DES_ENCRYPT (0*DES_DIRMASK)     /* Encrypt */
  44 #define DES_DECRYPT (1*DES_DIRMASK)     /* Decrypt */
  45
  46
  47 #define DES_DEVMASK (1 << 1)
  48 #define DES_HW (0*DES_DEVMASK)  /* Use hardware device */
  49 #define DES_SW (1*DES_DEVMASK)  /* Use software device */
  50
  51
  52 #define DESERR_NONE 0   /* succeeded */
  53 #define DESERR_NOHWDEVICE 1     /* succeeded, but hw device not available */
  54 #define DESERR_HWERROR 2        /* failed, hardware/driver error */
  55 #define DESERR_BADPARAM 3       /* failed, bad parameter to call */
  56
  57 #define DES_FAILED(err) \
  58         ((err) > DESERR_NOHWDEVICE)
  59
  60 /*
  61  * cbc_crypt()
  62  * ecb_crypt()
  63  *
  64  * Encrypt (or decrypt) len bytes of a buffer buf.
  65  * The length must be a multiple of eight.
  66  * The key should have odd parity in the low bit of each byte.
  67  * ivec is the input vector, and is updated to the new one (cbc only).
  68  * The mode is created by oring together the appropriate parameters.
  69  * DESERR_NOHWDEVICE is returned if DES_HW was specified but
  70  * there was no hardware to do it on (the data will still be
  71  * encrypted though, in software).
  72  */
  73
  74
  75 /*
  76  * Cipher Block Chaining mode
  77  */
  78 int
  79 cbc_crypt(/* key, buf, len, mode, ivec */); /*
  80         char *key;
  81         char *buf;
  82         unsigned len;
  83         unsigned mode;
  84         char *ivec;
  85 */
  86
  87
  88 /*
  89  * Electronic Code Book mode
  90  */
  91 int
  92 ecb_crypt(/* key, buf, len, mode */); /*
  93         char *key;
  94         char *buf;
  95         unsigned len;
  96         unsigned mode;
  97 */
  98
  99
 100 #ifndef KERNEL
 101 /*
 102  * Set des parity for a key.
 103  * DES parity is odd and in the low bit of each byte
 104  */
 105 void
 106 des_setparity(/* key */); /*
 107         char *key;
 108 */
 109 #endif