mgf1: Refactored MGF1 as an XOF

2016-09-21 06:40:52 +02:00
parent e9e643b240
commit 188b190a70
60 changed files with 966 additions and 644 deletions
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2016 Andreas Steffen
+ * HSR 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.
+ */
+
+/**
+ * @defgroup mgf1 mgf1
+ * @{ @ingroup crypto
+ */
+
+#ifndef MGF1_H_
+#define MGF1_H_
+
+typedef struct mgf1_t mgf1_t;
+
+#include "xof.h"
+
+/**
+ * Implements the PKCS#1 MGF1 Mask Generation Function based on a hash function
+ * defined in section 10.2.1 of RFC 2437
+ */
+struct mgf1_t {
+
+	/**
+	 * Generic xof_t interface for this Extended Output Function (XOF).
+	 */
+	xof_t xof_interface;
+
+	/**
+	 * Hash the seed before using it as a seed for MGF1
+	 * 
+	 * @param yes		TRUE if seed has to be hashed first
+	 */
+	void (*set_hash_seed)(mgf1_t *this, bool yes);
+};
+
+#endif /** MGF1_H_ @}*/