Created newhope plugin implementing the New Hope key exchange algorithm

2016-08-10 14:22:00 +02:00
parent 1fddb0b92e
commit 393688aea0
15 changed files with 1353 additions and 2 deletions
@@ -0,0 +1,70 @@
+/*
+ * 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 newhope_reconciliation newhope_reconciliation
+ * @{ @ingroup newhope_p
+ */
+
+#ifndef NEWHOPE_RECONCILIATION_H_
+#define NEWHOPE_RECONCILIATION_H_
+
+typedef struct newhope_reconciliation_t newhope_reconciliation_t;
+
+#include <library.h>
+
+/**
+ * Class assisting the error reconciliation
+ * resulting in a key exchange error rate < 2^(-60)
+ */
+struct newhope_reconciliation_t {
+
+	/**
+	 * Generate reconciliation polynomial
+	 *
+	 * @param v			polynomial v
+	 * @param rbits		pseudo random bit array	
+	 * @return			return array with reconciliation polynomial
+	 */
+	uint8_t* (*help_reconcile)(newhope_reconciliation_t *this,
+							   uint32_t *v, uint8_t *rbits);
+
+	/**
+	 * Use reconciliation polynomial r to derive shared secret
+	 *
+	 * @param v			polynomial v or v'
+	 * @param r			reconciliation polynomial r
+	 * @return			Return shared secret
+	 */
+	chunk_t (*reconcile)(newhope_reconciliation_t *this,
+						uint32_t *v, uint8_t *r);
+
+	/**
+	 * Destroy a newhope_reconciliation_t object
+	 */
+	void (*destroy)(newhope_reconciliation_t *this);
+};
+
+/**
+ * Creates a new newhope_reconciliation_t object.
+ *
+ * @param n				array size
+ * @param q				prime modulus
+ * @return				newhope_reconciliation_t object
+ */
+newhope_reconciliation_t *newhope_reconciliation_create(int n, int32_t q);
+
+#endif /** NEWHOPE_RECONCILIATION_H_ @}*/
+