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 1.2 1999/12/29 05:00:42 peter 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  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  11  * unrestricted use provided that this legend is included on all tape
  12  * media and as a part of the software program in whole or part.  Users
  13  * may copy or modify Sun RPC without charge, but are not authorized
  14  * to license or distribute it to anyone else except as part of a product or
  15  * program developed by the user.
  16  *
  17  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  18  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  20  *
  21  * Sun RPC is provided with no support and without any obligation on the
  22  * part of Sun Microsystems, Inc. to assist in its use, correction,
  23  * modification or enhancement.
  24  *
  25  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  26  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  27  * OR ANY PART THEREOF.
  28  *
  29  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  30  * or profits or other special, indirect and consequential damages, even if
  31  * Sun has been advised of the possibility of such damages.
  32  *
  33  * Sun Microsystems, Inc.
  34  * 2550 Garcia Avenue
  35  * Mountain View, California  94043
  36  */
  37
  38 #include <sys/cdefs.h>
  39 #include <rpc/rpc.h>
  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 __BEGIN_DECLS
  79 #ifdef __STDC__
  80 int cbc_crypt ( char *, char *, unsigned int, unsigned int, char *);
  81 #else
  82 cbc_crypt(/* key, buf, len, mode, ivec */); /*
  83         char *key;
  84         char *buf;
  85         unsigned len;
  86         unsigned mode;
  87         char *ivec;
  88 */
  89 #endif
  90
  91 /*
  92  * Electronic Code Book mode
  93  */
  94 #ifdef __STDC__
  95 int ecb_crypt ( char *, char *, unsigned int, unsigned int );
  96 #else
  97 ecb_crypt(/* key, buf, len, mode */); /*
  98         char *key;
  99         char *buf;
 100         unsigned len;
 101         unsigned mode;
 102 */
 103 #endif
 104 __END_DECLS
 105
 106 #ifndef _KERNEL
 107 /*
 108  * Set des parity for a key.
 109  * DES parity is odd and in the low bit of each byte
 110  */
 111 __BEGIN_DECLS
 112 #ifdef __STDC__
 113 void des_setparity ( char *);
 114 #else
 115 void
 116 des_setparity(/* key */); /*
 117         char *key;
 118 */
 119 #endif
 120 __END_DECLS
 121 #endif