diff --git a/ChangeLog b/ChangeLog
index d9fbfb32bea3c3f32e163e6f6ee51f77f34794a6..c129b5e89dd77384f1e21d2322c136dca339d226 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2010-03-27  Niels M�ller  <nisse@lysator.liu.se>
+
+	* Makefile.in (nettle_SOURCES): Added hmac-sha224.c and
+	hmac-sha384.c.
+
+	* hmac.h: Added declarations of hmac-sha224 and hmac-sha384.
+
+	* hmac-sha224.c: New file.
+
 2010-03-26  Niels M�ller  <nisse@lysator.liu.se>
 
 	* testsuite/hmac-test.c (HMAC_TEST): New macro.
diff --git a/Makefile.in b/Makefile.in
index 9268eee388cdd91722a5a60e64df0ea5db115fbe..7315b2b301fa65787d07dd93bf83420933d2629c 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -60,7 +60,8 @@ nettle_SOURCES = aes-decrypt-internal.c aes-decrypt.c \
 		 cbc.c ctr.c \
 		 des.c \
 		 des3.c des-compat.c \
-		 hmac.c hmac-md5.c hmac-sha1.c hmac-sha256.c hmac-sha512.c \
+		 hmac.c hmac-md5.c hmac-sha1.c \
+		 hmac-sha224.c hmac-sha256.c hmac-sha384.c hmac-sha512.c \
 		 knuth-lfib.c \
 		 md2.c md2-meta.c md4.c md4-meta.c \
 		 md5.c md5-compress.c md5-compat.c md5-meta.c \
diff --git a/hmac-sha224.c b/hmac-sha224.c
new file mode 100644
index 0000000000000000000000000000000000000000..580509e0a7caecfc56c3c64b80ae097ce338b226
--- /dev/null
+++ b/hmac-sha224.c
@@ -0,0 +1,44 @@
+/* hmac-sha224.c
+ *
+ * HMAC-SHA224 message authentication code.
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2003, 2010 Niels M�ller
+ *  
+ * 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_sha224_set_key(struct hmac_sha224_ctx *ctx,
+		    unsigned key_length, const uint8_t *key)
+{
+  HMAC_SET_KEY(ctx, &nettle_sha224, key_length, key);
+}
+
+void
+hmac_sha224_digest(struct hmac_sha224_ctx *ctx,
+		   unsigned length, uint8_t *digest)
+{
+  HMAC_DIGEST(ctx, &nettle_sha224, length, digest);
+}
diff --git a/hmac.h b/hmac.h
index a413de7548be9153b80440d6c4671ad34479a63d..0142e6e378bdd041656ffc7c5a7542401e904b9d 100644
--- a/hmac.h
+++ b/hmac.h
@@ -45,9 +45,13 @@ extern "C" {
 #define hmac_sha1_set_key nettle_hmac_sha1_set_key
 #define hmac_sha1_update nettle_hmac_sha1_update
 #define hmac_sha1_digest nettle_hmac_sha1_digest
+#define hmac_sha224_set_key nettle_hmac_sha224_set_key
+#define hmac_sha224_digest nettle_hmac_sha224_digest
 #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_sha384_set_key nettle_hmac_sha384_set_key
+#define hmac_sha384_digest nettle_hmac_sha384_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
@@ -129,6 +133,19 @@ void
 hmac_sha256_digest(struct hmac_sha256_ctx *ctx,
 		   unsigned length, uint8_t *digest);
 
+/* hmac-sha224 */
+#define hmac_sha224_ctx hmac_sha256_ctx
+
+void
+hmac_sha224_set_key(struct hmac_sha224_ctx *ctx,
+		    unsigned key_length, const uint8_t *key);
+
+#define hmac_sha224_update nettle_hmac_sha256_update
+
+void
+hmac_sha224_digest(struct hmac_sha224_ctx *ctx,
+		   unsigned length, uint8_t *digest);
+
 /* hmac-sha512 */
 struct hmac_sha512_ctx HMAC_CTX(struct sha512_ctx);
 
@@ -151,7 +168,7 @@ void
 hmac_sha384_set_key(struct hmac_sha512_ctx *ctx,
 		    unsigned key_length, const uint8_t *key);
 
-#define hmac_sha384_update hmac_sha512_update
+#define hmac_sha384_update nettle_hmac_sha512_update
 
 void
 hmac_sha384_digest(struct hmac_sha512_ctx *ctx,