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:  ********************************************************************/