--- /dev/null
+/* hmac-md5.h */
+/*
+ This file is part of the AVR-Crypto-Lib.
+ Copyright (C) 2009 Daniel Otte (daniel.otte@rub.de)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifndef HMACMD5_H_
+#define HMACMD5_H_
+
+#include "md5.h"
+
+#define HMAC_MD5_BITS MD5_HASH_BITS
+#define HMAC_MD5_BYTES MD5_HASH_BYTES
+#define HMAC_MD5_BLOCK_BITS MD5_BLOCK_BITS
+#define HMAC_MD5_BLOCK_BYTES MD5_BLOCK_BYTES
+
+typedef struct{
+ md5_ctx_t a,b;
+} hmac_md5_ctx_t;
+
+
+void hmac_md5_init(hmac_md5_ctx_t *s, void* key, uint16_t keylength_b);
+void hmac_md5_nextBlock(hmac_md5_ctx_t *s, const void* block);
+void hmac_md5_lastBlock(hmac_md5_ctx_t *s, const void* block, uint16_t length_b);
+void hmac_md5_final(void* dest, hmac_md5_ctx_t *s);
+
+void hmac_md5(void* dest, void* key, uint16_t keylength_b, void* msg, uint32_t msglength_b);
+
+
+#endif /*HMACMD5_H_*/