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				/* crypto/md4/md4.h */
				/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
				 * All rights reserved.
				 *
				 * This package is an SSL implementation written
				 * by Eric Young (eay@cryptsoft.com).
				 * The implementation was written so as to conform with Netscapes SSL.
				 * 
				 * This library is free for commercial and non-commercial use as long as
				 * the following conditions are aheared to.  The following conditions
				 * apply to all code found in this distribution, be it the RC4, RSA,
				 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
				 * included with this distribution is covered by the same copyright terms
				 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
				 * 
				 * Copyright remains Eric Young's, and as such any Copyright notices in
				 * the code are not to be removed.
				 * If this package is used in a product, Eric Young should be given attribution
				 * as the author of the parts of the library used.
				 * This can be in the form of a textual message at program startup or
				 * in documentation (online or textual) provided with the package.
				 * 
				 * Redistribution and use in source and binary forms, with or without
				 * modification, are permitted provided that the following conditions
				 * are met:
				 * 1. Redistributions of source code must retain the copyright
				 *    notice, this list of conditions and the following disclaimer.
				 * 2. Redistributions in binary form must reproduce the above copyright
				 *    notice, this list of conditions and the following disclaimer in the
				 *    documentation and/or other materials provided with the distribution.
				 * 3. All advertising materials mentioning features or use of this software
				 *    must display the following acknowledgement:
				 *    "This product includes cryptographic software written by
				 *     Eric Young (eay@cryptsoft.com)"
				 *    The word 'cryptographic' can be left out if the rouines from the library
				 *    being used are not cryptographic related :-).
				 * 4. If you include any Windows specific code (or a derivative thereof) from 
				 *    the apps directory (application code) you must include an acknowledgement:
				 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
				 * 
				 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
				 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
				 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
				 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
				 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
				 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
				 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
				 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
				 * SUCH DAMAGE.
				 * 
				 * The licence and distribution terms for any publically available version or
				 * derivative of this code cannot be changed.  i.e. this code cannot simply be
				 * copied and put under another distribution licence
				 * [including the GNU Public Licence.]
				 */
				
				#ifndef HEADER_MD4_H
				#define HEADER_MD4_H
				
				#include 
				#include 
				
				#ifdef  __cplusplus
				extern "C" {
				#endif
				
				#ifdef OPENSSL_NO_MD4
				#error MD4 is disabled.
				#endif
				
				/*
				 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
				 * ! MD4_LONG has to be at least 32 bits wide. If it's wider, then !
				 * ! MD4_LONG_LOG2 has to be defined along.			   !
				 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
				 */
				
				#if defined(OPENSSL_SYS_WIN16) || defined(__LP32__)
				#define MD4_LONG unsigned long
				#elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
				#define MD4_LONG unsigned long
				#define MD4_LONG_LOG2 3
				/*
				 * _CRAY note. I could declare short, but I have no idea what impact
				 * does it have on performance on none-T3E machines. I could declare
				 * int, but at least on C90 sizeof(int) can be chosen at compile time.
				 * So I've chosen long...
				 *					
				 */
				#else
				#define MD4_LONG unsigned int
				#endif
				
				#define MD4_CBLOCK	64
				#define MD4_LBLOCK	(MD4_CBLOCK/4)
				#define MD4_DIGEST_LENGTH 16
				
				typedef struct MD4state_st
					{
					MD4_LONG A,B,C,D;
					MD4_LONG Nl,Nh;
					MD4_LONG data[MD4_LBLOCK];
					unsigned int num;
					} MD4_CTX;
				
				int MD4_Init(MD4_CTX *c);
				int MD4_Update(MD4_CTX *c, const void *data, size_t len);
				int MD4_Final(unsigned char *md, MD4_CTX *c);
				unsigned char *MD4(const unsigned char *d, size_t n, unsigned char *md);
				void MD4_Transform(MD4_CTX *c, const unsigned char *b);
				#ifdef  __cplusplus
				}
				#endif
				
				#endif
							

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