- prf_hmac_sha1 is now a generig prf_hmac

- supports md5
2005-11-22 15:33:08 +00:00
parent c4253ff5cc
commit 74ced9e249
3 changed files with 31 additions and 27 deletions
@@ -0,0 +1,56 @@
+/**
+ * @file prf_hmac.h
+ * 
+ * @brief Implementation of prf_t interface using the
+ * a HMAC algorithm. This simply wraps a hmac in a prf.
+ * 
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+#ifndef PRF_HMAC_H_
+#define PRF_HMAC_H_
+
+#include "prf.h"
+
+#include "../../types.h"
+#include "../hashers/hasher.h"
+
+/**
+ * Object representing a prf using HMAC
+ * 
+ */
+typedef struct prf_hmac_s prf_hmac_t;
+
+struct prf_hmac_s {
+	
+	/**
+	 * generic prf_t interface for this prf
+	 */
+	prf_t prf_interface;
+};
+
+/**
+ * Creates a new prf_hmac_t object
+ * 
+ * @param hash_algorithm			hmac's hash algorithm
+ * @return
+ * 									- prf_hmac_t if successfully
+ * 									- NULL if out of ressources
+ */
+prf_hmac_t *prf_hmac_create(hash_algorithm_t hash_algorithm);
+
+#endif /*PRF_HMAC_SHA1_H_*/