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   1 /* -*-c-*-
   2  *
   3  * $Id: gmac.h,v 1.2 2000/06/17 11:22:46 mdw Exp $
   4  *
   5  * Generic MAC function interface
   6  *
   7  * (c) 1999 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of Catacomb.
  13  *
  14  * Catacomb is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU Library General Public License as
  16  * published by the Free Software Foundation; either version 2 of the
  17  * License, or (at your option) any later version.
  18  *
  19  * Catacomb is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Library General Public
  25  * License along with Catacomb; if not, write to the Free
  26  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  27  * MA 02111-1307, USA.
  28  */
  29
  30 /*----- Revision history --------------------------------------------------*
  31  *
  32  * $Log: gmac.h,v $
  33  * Revision 1.2  2000/06/17 11:22:46  mdw
  34  * Minor changes in the generic hash and MAC interfaces.
  35  *
  36  * Revision 1.1  1999/12/10 23:16:01  mdw
  37  * Generic interface.
  38  *
  39  */
  40
  41 #ifndef CATACOMB_GMAC_H
  42 #define CATACOMB_GMAC_H
  43
  44 #ifdef __cplusplus
  45   extern "C" {
  46 #endif
  47
  48 /*----- Header files ------------------------------------------------------*/
  49
  50 #include <stddef.h>
  51
  52 #ifndef CATACOMB_GCIPHER_H
  53 #  include "gcipher.h"
  54 #endif
  55
  56 #ifndef CATACOMB_GHASH_H
  57 #  include "ghash.h"
  58 #endif
  59
  60 /*----- Generic MAC function interface ------------------------------------*/
  61
  62 typedef struct gmac {
  63   const struct gmac_ops *ops;           /* Pointer to MAC operations */
  64 } gmac;
  65
  66 typedef struct gmac_ops {
  67   const struct gcmac *c;                /* Pointer to MAC class */
  68   ghash *(*init)(gmac */*m*/);          /* Create keyed hash instance */
  69   void (*destroy)(gmac */*m*/);         /* Destroy MAC key block */
  70 } gmac_ops;
  71
  72 typedef struct gcmac {
  73   const char *name;                     /* Name of the MAC function */
  74   size_t hashsz;                        /* Size of output hash */
  75   const octet *keysz;                   /* Key size options */
  76   gmac *(*key)(const void */*k*/, size_t /*sz*/); /* Create key */
  77 } gcmac;
  78
  79 /*----- That's all, folks -------------------------------------------------*/
  80
  81 #ifdef __cplusplus
  82   }
  83 #endif
  84
  85 #endif