d3des.h

   1 /*
   2  * This is D3DES (V5.09) by Richard Outerbridge with the double and
   3  * triple-length support removed for use in VNC.
   4  *
   5  * These changes are:
   6  *  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
   7  *
   8  * This software is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  11  */
  12
  13 /* d3des.h -
  14  *
  15  *      Headers and defines for d3des.c
  16  *      Graven Imagery, 1992.
  17  *
  18  * Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge
  19  *      (GEnie : OUTER; CIS : [71755,204])
  20  */
  21
  22 #define EN0     0       /* MODE == encrypt */
  23 #define DE1     1       /* MODE == decrypt */
  24
  25 extern void deskey(unsigned char *, int);
  26 /*                    hexkey[8]     MODE
  27  * Sets the internal key register according to the hexadecimal
  28  * key contained in the 8 bytes of hexkey, according to the DES,
  29  * for encryption or decryption according to MODE.
  30  */
  31
  32 extern void usekey(unsigned long *);
  33 /*                  cookedkey[32]
  34  * Loads the internal key register with the data in cookedkey.
  35  */
  36
  37 extern void cpkey(unsigned long *);
  38 /*                 cookedkey[32]
  39  * Copies the contents of the internal key register into the storage
  40  * located at &cookedkey[0].
  41  */
  42
  43 extern void des(unsigned char *, unsigned char *);
  44 /*                  from[8]           to[8]
  45  * Encrypts/Decrypts (according to the key currently loaded in the
  46  * internal key register) one block of eight bytes at address 'from'
  47  * into the block at address 'to'.  They can be the same.
  48  */
  49
  50 /* d3des.h V5.09 rwo 9208.04 15:06 Graven Imagery
  51  ********************************************************************/