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diff --git a/Source/lib/crypto/diffie_hellman.h b/Source/lib/crypto/diffie_hellman.h
deleted file mode 100644
index 48a165557..000000000
--- a/Source/lib/crypto/diffie_hellman.h
+++ /dev/null
@@ -1,149 +0,0 @@
-/**
- * @file diffie_hellman.h
- * 
- * @brief Interface of diffie_hellman_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 DIFFIE_HELLMAN_H_
-#define DIFFIE_HELLMAN_H_
-
-#include <types.h>
-
-
-typedef enum diffie_hellman_group_t diffie_hellman_group_t;
-
-/** 
- * @brief Diffie-Hellman group.
- * 
- * The modulus (or group) to use for a Diffie-Hellman calculation.
- * 
- * See IKEv2 RFC 3.3.2 and RFC 3526.
- * 
- * @ingroup transforms
- */
-enum diffie_hellman_group_t {
-	MODP_UNDEFINED = 1024,
-	MODP_768_BIT = 1,
-	MODP_1024_BIT = 2,
-	MODP_1536_BIT = 5,
-	MODP_2048_BIT = 14,
-	MODP_3072_BIT = 15,
-	MODP_4096_BIT = 16,
-	MODP_6144_BIT = 17,
-	MODP_8192_BIT = 18
-};
-
-/** 
- * String mappings for diffie_hellman_group_t.
- */
-extern mapping_t diffie_hellman_group_m[];
-
-
-typedef struct diffie_hellman_t diffie_hellman_t;
-
-/**
- * @brief Implementation of the widely used Diffie-Hellman algorithm.
- * 
- * @b Constructors:
- *  - diffie_hellman_create()
- * 
- * @ingroup transforms
- */
-struct diffie_hellman_t {
-		
-	/**
-	 * @brief Returns the shared secret of this diffie hellman exchange.
-	 * 	
-	 * @warning Space for returned secret is allocated and must be 
-	 * freed by the caller.
-	 * 
-	 * @param this 			calling diffie_hellman_t object
-	 * @param[out] secret 	shared secret will be written into this chunk
-	 * @return 				
-	 * 						- SUCCESS
-	 * 						- FAILED if not both DH values are set
-	 */
-	status_t (*get_shared_secret) (diffie_hellman_t *this, chunk_t *secret);
-	
-	/**
-	 * @brief Sets the public value of partner.
-	 * 	
-	 * chunk gets cloned and can be destroyed afterwards.
-	 * 
-	 * @param this 			calling diffie_hellman_t object
-	 * @param public_value 	public value of partner
-	 */
-	void (*set_other_public_value) (diffie_hellman_t *this, chunk_t public_value);
-	
-	/**
-	 * @brief Gets the public value of partner.
-	 * 	
-	 * @warning Space for returned chunk is allocated and must be 
-	 * freed by the caller.
-	 * 
-	 * @param this 				calling diffie_hellman_t object
-	 * @param[out] public_value public value of partner is stored at this location
-	 * @return 				
-	 * 							- SUCCESS
-	 * 							- FAILED if other public value not set
-	 */
-	status_t (*get_other_public_value) (diffie_hellman_t *this, chunk_t *public_value);
-	
-	/**
-	 * @brief Gets the public value of caller
-	 * 	
-	 * @warning Space for returned chunk is allocated and must be 
-	 * freed by the caller.
-	 * 
-	 * @param this 				calling diffie_hellman_t object
-	 * @param[out] 				public_value public value of caller is stored at this location
-	 */
-	void (*get_my_public_value) (diffie_hellman_t *this, chunk_t *public_value);
-	
-	/**
-	 * @brief Get the DH group used.
-	 * 
-	 * @param this 				calling diffie_hellman_t object
-	 * @return					DH group set in construction
-	 */
-	diffie_hellman_group_t (*get_dh_group) (diffie_hellman_t *this);
-
-	/**
-	 * @brief Destroys an diffie_hellman_t object.
-	 *
-	 * @param this 				diffie_hellman_t object to destroy
-	 */
-	void (*destroy) (diffie_hellman_t *this);
-};
-
-/**
- * @brief Creates a new diffie_hellman_t object.
- * 
- * The first diffie hellman public value gets automatically created.
- * 
- * @param dh_group_number	Diffie Hellman group number to use
- * @return
- * 							- diffie_hellman_t object
- * 							- NULL if dh group not supported
- * 
- * @ingroup transforms
- */
-diffie_hellman_t *diffie_hellman_create(diffie_hellman_group_t dh_group_number);
-
-#endif /*DIFFIE_HELLMAN_H_*/