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  * 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  * Copyright (c) 1986 - 1991 by Sun Microsystems, Inc.
  39  */
  40
  41 /*
  42  * des_crypt.h, des library routine interface
  43  */
  44
  45 #ifndef _DES_DES_CRYPT_H
  46 #define _DES_DES_CRYPT_H
  47
  48 #include <sys/cdefs.h>
  49 #include <rpc/rpc.h>
  50
  51 #define DES_MAXDATA 8192        /* max bytes encrypted in one call */
  52 #define DES_DIRMASK (1 << 0)
  53 #define DES_ENCRYPT (0*DES_DIRMASK)     /* Encrypt */
  54 #define DES_DECRYPT (1*DES_DIRMASK)     /* Decrypt */
  55
  56
  57 #define DES_DEVMASK (1 << 1)
  58 #define DES_HW (0*DES_DEVMASK)  /* Use hardware device */
  59 #define DES_SW (1*DES_DEVMASK)  /* Use software device */
  60
  61
  62 #define DESERR_NONE 0   /* succeeded */
  63 #define DESERR_NOHWDEVICE 1     /* succeeded, but hw device not available */
  64 #define DESERR_HWERROR 2        /* failed, hardware/driver error */
  65 #define DESERR_BADPARAM 3       /* failed, bad parameter to call */
  66
  67 #define DES_FAILED(err) \
  68         ((err) > DESERR_NOHWDEVICE)
  69
  70 /*
  71  * cbc_crypt()
  72  * ecb_crypt()
  73  *
  74  * Encrypt (or decrypt) len bytes of a buffer buf.
  75  * The length must be a multiple of eight.
  76  * The key should have odd parity in the low bit of each byte.
  77  * ivec is the input vector, and is updated to the new one (cbc only).
  78  * The mode is created by oring together the appropriate parameters.
  79  * DESERR_NOHWDEVICE is returned if DES_HW was specified but
  80  * there was no hardware to do it on (the data will still be
  81  * encrypted though, in software).
  82  */
  83
  84
  85 /*
  86  * Cipher Block Chaining mode
  87  */
  88 __BEGIN_DECLS
  89 int cbc_crypt( char *, char *, unsigned int, unsigned int, char *);
  90 __END_DECLS
  91
  92 /*
  93  * Electronic Code Book mode
  94  */
  95 __BEGIN_DECLS
  96 int ecb_crypt( char *, char *, unsigned int, unsigned int );
  97 __END_DECLS
  98
  99 /*
 100  * Set des parity for a key.
 101  * DES parity is odd and in the low bit of each byte
 102  */
 103 __BEGIN_DECLS
 104 void des_setparity( char *);
 105 __END_DECLS
 106
 107 #endif  /* _DES_DES_CRYPT_H */