3 * $Id: gmac.h,v 1.4 2004/04/08 01:36:15 mdw Exp $
5 * Generic MAC function interface
7 * (c) 1999 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of Catacomb.
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.
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.
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,
30 #ifndef CATACOMB_GMAC_H
31 #define CATACOMB_GMAC_H
37 /*----- Header files ------------------------------------------------------*/
41 #ifndef CATACOMB_GCIPHER_H
45 #ifndef CATACOMB_GHASH_H
49 /*----- Generic MAC function interface ------------------------------------*/
52 const struct gmac_ops
*ops
; /* Pointer to MAC operations */
55 typedef struct gmac_ops
{
56 const struct gcmac
*c
; /* Pointer to MAC class */
57 ghash
*(*init
)(gmac */
*m*/
); /* Create keyed hash instance */
58 void (*destroy
)(gmac */
*m*/
); /* Destroy MAC key block */
61 typedef struct gcmac
{
62 const char *name
; /* Name of the MAC function */
63 size_t hashsz
; /* Size of output hash */
64 const octet
*keysz
; /* Key size options */
65 gmac
*(*key
)(const void */
*k*/
, size_t /*sz*/); /* Create key */
68 #define GM_KEY(cm, k, ksz) (cm)->key((k), (ksz))
69 #define GM_CLASS(km) (km)->ops->c
70 #define GM_INIT(km) (km)->ops->init((km))
71 #define GM_DESTROY(km) (km)->ops->destroy((km))
73 /*----- Tables ------------------------------------------------------------*/
75 extern const gcmac
*const gmactab
[];
77 /* --- @gmac_byname@ --- *
79 * Arguments: @const char *p@ = pointer to name string
81 * Returns: The named cipher class, or null.
84 extern const gcmac
*gmac_byname(const char */
*p*/
);
86 /*----- That's all, folks -------------------------------------------------*/