../svn-commit.tmp

Source/lib/crypto/prfs/hmac_prf.h

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+/**
+ * @file hmac_prf.h
+ * 
+ * @brief Interface of hmac_prf_t.
+ * 
+ */
+
+/*
+ * 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 <types.h>
+#include <crypto/prfs/prf.h>
+#include <crypto/hashers/hasher.h>
+
+typedef struct hmac_prf_t hmac_prf_t;
+
+/**
+ * @brief Implementation of prf_t interface using the
+ * HMAC algorithm.
+ * 
+ * This simply wraps a hmac_t in a prf_t. More a question of
+ * interface matching.
+ * 
+ * @b Constructors:
+ *  - hmac_prf_create()
+ * 
+ * @ingroup prfs
+ */
+struct hmac_prf_t {
+	
+	/**
+	 * Generic prf_t interface for this hmac_prf_t class.
+	 */
+	prf_t prf_interface;
+};
+
+/**
+ * @brief Creates a new hmac_prf_t object.
+ * 
+ * @param hash_algorithm	hmac's hash algorithm
+ * @return
+ * 							- hmac_prf_t object
+ * 							- NULL if hash not supported
+ * 
+ * @ingroup prfs
+ */
+hmac_prf_t *hmac_prf_create(hash_algorithm_t hash_algorithm);
+
+#endif /*PRF_HMAC_SHA1_H_*/