X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/aa1082f28ddd05f3b946ca1a9c6bfaa17d18aca5..e74e12bc7c899a47d3f0e28420f6502b8f70a5a9:/gmac.h

diff --git a/gmac.h b/gmac.h
index 9471308..096c36d 100644
--- a/gmac.h
+++ b/gmac.h
@@ -1,13 +1,13 @@
 /* -*-c-*-
  *
- * $Id: gmac.h,v 1.1 1999/12/10 23:16:01 mdw Exp $
+ * $Id: gmac.h,v 1.4 2004/04/08 01:36:15 mdw Exp $
  *
  * Generic MAC function interface
  *
  * (c) 1999 Straylight/Edgeware
  */
 
-/*----- Licensing notice --------------------------------------------------* 
+/*----- Licensing notice --------------------------------------------------*
  *
  * This file is part of Catacomb.
  *
@@ -15,26 +15,18 @@
  * it under the terms of the GNU Library General Public License as
  * published by the Free Software Foundation; either version 2 of the
  * License, or (at your option) any later version.
- * 
+ *
  * Catacomb is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU Library General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Library General Public
  * License along with Catacomb; if not, write to the Free
  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
- *
- * $Log: gmac.h,v $
- * Revision 1.1  1999/12/10 23:16:01  mdw
- * Generic interface.
- *
- */
-
 #ifndef CATACOMB_GMAC_H
 #define CATACOMB_GMAC_H
 
@@ -46,6 +38,10 @@
 
 #include <stddef.h>
 
+#ifndef CATACOMB_GCIPHER_H
+#  include "gcipher.h"
+#endif
+
 #ifndef CATACOMB_GHASH_H
 #  include "ghash.h"
 #endif
@@ -57,16 +53,36 @@ typedef struct gmac {
 } gmac;
 
 typedef struct gmac_ops {
-  const struct gchash_base *b;		/* Pointer to basic information */
+  const struct gcmac *c;		/* Pointer to MAC class */
   ghash *(*init)(gmac */*m*/);		/* Create keyed hash instance */
   void (*destroy)(gmac */*m*/);		/* Destroy MAC key block */
 } gmac_ops;
 
 typedef struct gcmac {
-  gchash_base b;			/* Basic information */
+  const char *name;			/* Name of the MAC function */
+  size_t hashsz;			/* Size of output hash */
+  const octet *keysz;			/* Key size options */
   gmac *(*key)(const void */*k*/, size_t /*sz*/); /* Create key */
 } gcmac;
 
+#define GM_KEY(cm, k, ksz)	(cm)->key((k), (ksz))
+#define GM_CLASS(km)		(km)->ops->c
+#define GM_INIT(km)		(km)->ops->init((km))
+#define GM_DESTROY(km)		(km)->ops->destroy((km))
+
+/*----- Tables ------------------------------------------------------------*/
+
+extern const gcmac *const gmactab[];
+
+/* --- @gmac_byname@ --- *
+ *
+ * Arguments:	@const char *p@ = pointer to name string
+ *
+ * Returns:	The named cipher class, or null.
+ */
+
+extern const gcmac *gmac_byname(const char */*p*/);
+
 /*----- That's all, folks -------------------------------------------------*/
 
 #ifdef __cplusplus