/* -*-c-*-
*
- * $Id: hmac.h,v 1.3 2000/06/17 11:23:57 mdw Exp $
+ * $Id: hmac.h,v 1.7 2004/04/08 01:36:15 mdw Exp $
*
* Generic code for HMAC and NMAC
*
* MA 02111-1307, USA.
*/
-/*----- Revision history --------------------------------------------------*
- *
- * $Log: hmac.h,v $
- * Revision 1.3 2000/06/17 11:23:57 mdw
- * New key size interface.
- *
- * Revision 1.2 1999/12/10 23:17:39 mdw
- * Split mode macros into interface and implementation.
- *
- * Revision 1.1 1999/09/03 08:41:12 mdw
- * Initial import.
- *
- */
-
/*----- Notes on the HMAC and NMAC constructions --------------------------*
*
* Designed by Mihir Bellare, Ran Canetti and Hugo Krawczyk, NMAC is a method
/* --- An HMAC or NMAC key --- */ \
\
typedef struct pre##_mackey { \
- octet ochain[PRE##_HASHSZ]; /* Chaining for outer hash */ \
+ octet ochain[PRE##_STATESZ]; /* Chaining for outer hash */ \
unsigned ocount; /* Byte count for outer hash */ \
- octet ichain[PRE##_HASHSZ]; /* Chaining for inner hash */ \
+ octet ichain[PRE##_STATESZ]; /* Chaining for inner hash */ \
unsigned icount; /* Byte count for inner hash */ \
} pre##_mackey; \
\
\
typedef struct pre##_macctx { \
pre##_ctx ctx; /* Context for main hashing */ \
- octet chain[PRE##_HASHSZ]; /* Chaining for outer hash */ \
+ octet chain[PRE##_STATESZ]; /* Chaining for outer hash */ \
unsigned count; /* Byte count for outer hash */ \
} pre##_macctx; \
\
/* --- Other useful constants --- */ \
\
-extern const octet pre##_mackeysz[]; \
+extern const octet pre##_hmackeysz[]; \
+extern const octet pre##_nmackeysz[]; \
+extern const octet pre##_sslmackeysz[]; \
\
/* --- @pre_nmacinit@ --- * \
* \
extern void pre##_hmacinit(pre##_mackey */*key*/, \
const void */*k*/, size_t /*sz*/); \
\
+/* --- @pre_sslmacinit@ --- * \
+ * \
+ * Arguments: @pre_mackey *key@ = pointer to MAC key object \
+ * @const void *k@ = pointer to key to use \
+ * @size_t sz@ = size of key data \
+ * \
+ * Returns: --- \
+ * \
+ * Use: Initializes a MAC key for doing hasing using the SSL3 \
+ * variant of HMAC. \
+ */ \
+ \
+extern void pre##_sslmacinit(pre##_mackey */*key*/, \
+ const void */*k*/, size_t /*sz*/); \
+ \
/* --- @pre_macinit@ --- * \
* \
* Arguments: @pre_macctx *ctx@ = pointer to MAC context block \
\
/* --- Generic MAC interface --- */ \
\
-extern const gcmac pre##_hmac;
+extern const gcmac pre##_hmac; \
+extern const gcmac pre##_nmac; \
+extern const gcmac pre##_sslmac;
/*----- That's all, folks -------------------------------------------------*/