/* -*-c-*-
*
- * $Id: sha.h,v 1.3 1999/12/10 23:20:03 mdw Exp $
+ * $Id: sha.h,v 1.5 2000/10/15 19:09:20 mdw Exp $
*
* Implementation of the SHA-1 hash function
*
/*----- Revision history --------------------------------------------------*
*
* $Log: sha.h,v $
+ * Revision 1.5 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 1.4 2000/06/17 11:32:52 mdw
+ * Change buffer offset to be unsigned.
+ *
* Revision 1.3 1999/12/10 23:20:03 mdw
* New hash interface requirements.
*
#define SHA_BUFSZ 64
#define SHA_HASHSZ 20
+#define SHA_STATESZ 20
/*----- Data structures ---------------------------------------------------*/
typedef struct sha_ctx {
uint32 a, b, c, d, e; /* Chaining variables */
uint32 nl, nh; /* Byte count so far */
- int off; /* Offset into buffer */
+ unsigned off; /* Offset into buffer */
octet buf[SHA_BUFSZ]; /* Accumulation buffer */
} sha_ctx;