* hmac.h: Declare functions SHA-512-related functions.

* hmac-sha512.c (hmac_sha512_set_key): New file.

Rev: nettle/hmac-sha512.c:1.1
Rev: nettle/hmac.h:1.2

hmac-sha512.c

+/* hmac-sha512.c
+ *
+ * HMAC-SHA512 message authentication code.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2003, 2010 Niels Mller
+ *  
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ * 
+ * The nettle library 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 Lesser General Public
+ * License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "hmac.h"
+
+void
+hmac_sha512_set_key(struct hmac_sha512_ctx *ctx,
+		    unsigned key_length, const uint8_t *key)
+{
+  HMAC_SET_KEY(ctx, &nettle_sha512, key_length, key);
+}
+
+void
+hmac_sha512_update(struct hmac_sha512_ctx *ctx,
+		   unsigned length, const uint8_t *data)
+{
+  sha512_update(&ctx->state, length, data);
+}
+
+void
+hmac_sha512_digest(struct hmac_sha512_ctx *ctx,
+		   unsigned length, uint8_t *digest)
+{
+  HMAC_DIGEST(ctx, &nettle_sha512, length, digest);
+}

hmac.h

@@ -48,6 +48,9 @@ extern "C" {
 #define hmac_sha256_set_key nettle_hmac_sha256_set_key
 #define hmac_sha256_update nettle_hmac_sha256_update
 #define hmac_sha256_digest nettle_hmac_sha256_digest
+#define hmac_sha512_set_key nettle_hmac_sha512_set_key
+#define hmac_sha512_update nettle_hmac_sha512_update
+#define hmac_sha512_digest nettle_hmac_sha512_digest
 
 void
 hmac_set_key(void *outer, void *inner, void *state,
@@ -126,6 +129,21 @@ void
 hmac_sha256_digest(struct hmac_sha256_ctx *ctx,
 		   unsigned length, uint8_t *digest);
 
+/* hmac-sha512 */
+struct hmac_sha512_ctx HMAC_CTX(struct sha512_ctx);
+
+void
+hmac_sha512_set_key(struct hmac_sha512_ctx *ctx,
+		    unsigned key_length, const uint8_t *key);
+
+void
+hmac_sha512_update(struct hmac_sha512_ctx *ctx,
+		   unsigned length, const uint8_t *data);
+
+void
+hmac_sha512_digest(struct hmac_sha512_ctx *ctx,
+		   unsigned length, uint8_t *digest);
+
 #ifdef __cplusplus
 }
 #endif