1a89be942d1bdb514aec16bccb3b066b47588def
[u/mdw/catacomb] / gmac.h
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