X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/d03ab969116fe715d569304c1c474749b2f64529..20fa0f6976d598481208c0583d72b2ccef637be9:/rc5.c

diff --git a/rc5.c b/rc5.c
index 5d03be7..306b5ec 100644
--- a/rc5.c
+++ b/rc5.c
@@ -1,13 +1,13 @@
 /* -*-c-*-
  *
- * $Id: rc5.c,v 1.1 1999/09/03 08:41:12 mdw Exp $
+ * $Id: rc5.c,v 1.3 2004/04/08 01:36:15 mdw Exp $
  *
  * The RC5-32/12 block cipher
  *
  * (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: rc5.c,v $
- * Revision 1.1  1999/09/03 08:41:12  mdw
- * Initial import.
- *
- */
-
 /*----- Header files ------------------------------------------------------*/
 
 #include <assert.h>
@@ -44,12 +36,16 @@
 #include <mLib/alloc.h>
 #include <mLib/bits.h>
 
+#include "arena.h"
 #include "blkc.h"
+#include "gcipher.h"
 #include "rc5.h"
 
-/*----- Internal magical constants ----------------------------------------*/
+/*----- Global variables --------------------------------------------------*/
 
-#define RC5_ROUNDS 12
+const octet rc5_keysz[] = { KSZ_RANGE, RC5_KEYSZ, 1, 255, 1 };
+
+/*----- Internal magical constants ----------------------------------------*/
 
 #define T ((RC5_ROUNDS + 1) * 2)
 #define P 0xb7e15163
@@ -78,7 +74,7 @@ void rc5_init(rc5_ctx *k, const void *sbuf, size_t sz)
    * This is slightly unfortunately defined.
    */
 
-  assert(((void)"RC5 does not support zero-length keys", sz != 0));
+  KSZ_ASSERT(rc5, sz);
 
   {
     int i;
@@ -87,7 +83,7 @@ void rc5_init(rc5_ctx *k, const void *sbuf, size_t sz)
     /* --- Create the buffer --- */
 
     w = (sz + 3) / 4;
-    l = xmalloc(w * sizeof(uint32));
+    l = XS_ALLOC(w * sizeof(uint32));
 
     /* --- Extract the key material --- */
 
@@ -137,7 +133,8 @@ void rc5_init(rc5_ctx *k, const void *sbuf, size_t sz)
     }
   }
 
-  free(l);
+  memset(l, 0, w * sizeof(uint32));
+  XS_FREE(l);
 }
 
 /* --- @EROUND@, @DROUND@ --- */