headers/private/mail/des.h

   1 #ifndef ZOIDBERG_DES_H
   2 #define ZOIDBERG_DES_H
   3 /* DES - encryption algorithm, removed double and triple DES
   4 **
   5 ** Copyright 2001 Dr. Zoidberg Enterprises. All rights reserved.
   6 */
   7
   8 /* des.h - adapted from d3des.h:
   9  *
  10  *      Headers and defines for d3des.c
  11  *      Graven Imagery, 1992.
  12  *
  13  * Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge
  14  *      (GEnie : OUTER; CIS : [71755,204])
  15  */
  16
  17 #define DES_ENCRYPT     0       /* MODE == encrypt */
  18 #define DES_DECRYPT     1       /* MODE == decrypt */
  19
  20
  21 #ifdef __cplusplus
  22 extern "C" {
  23 #endif
  24
  25 extern void des_setkey(unsigned char *, short);
  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 des_usekey(unsigned long *);
  33 /*                  cookedkey[32]
  34  * Loads the internal key register with the data in cookedkey.
  35  */
  36
  37 extern void des_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_crypt(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 extern void des_encrypt(char *from,char *to);
  51 extern void des_decrypt(char *from,int fromLength,char *to);
  52
  53 #ifdef __cplusplus
  54 }
  55 #endif
  56
  57 #endif  /* ZOIDBERG_DES_H */