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