Add an internal-representation no-op function.

[u/mdw/catacomb] / md5.h

diff --git a/md5.h b/md5.h
index ca08dd1..5dc6c3b 100644 (file)
--- a/md5.h
+++ b/md5.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: md5.h,v 1.2 1999/12/10 23:20:03 mdw Exp $
+ * $Id: md5.h,v 1.4 2000/10/15 19:09:20 mdw Exp $
  *
  * The MD5 message digest function
  *
@@ -30,6 +30,13 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: md5.h,v $
+ * Revision 1.4  2000/10/15 19:09:20  mdw
+ * Support HMAC mode for hash functions which need to store more state than
+ * the hash output size.
+ *
+ * Revision 1.3  2000/06/17 11:32:52  mdw
+ * Change buffer offset to be unsigned.
+ *
  * Revision 1.2  1999/12/10 23:20:03  mdw
  * New hash interface requirements.
  *
@@ -67,13 +74,14 @@
 
 #define MD5_BUFSZ 64
 #define MD5_HASHSZ 16
+#define MD5_STATESZ 16
 
 /*----- Data structures ---------------------------------------------------*/
 
 typedef struct md5_ctx {
   uint32 a, b, c, d;                   /* Chaining variables */
   uint32 nl, nh;                       /* Byte count so far */
-  int off;                             /* Offset into buffer */
+  unsigned off;                                /* Offset into buffer */
   octet buf[MD5_BUFSZ];                        /* Accumulation buffer */
 } md5_ctx;