md5_mac.h

mobile ip 在linux下的一种实现

/* $Id: md5_mac.h,v 1.2 2001/07/12 14:38:09 jm Exp $
 * MD5 hash implementation and interface functions
 *
 * Dynamic hierarchial IP tunnel
 * Copyright (C) 1998-2001, Dynamics group
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation. See README and COPYING for
 * more details.
 */

#ifndef MD5_MAC_H
#define MD5_MAC_H

#include "owntypes.h"

#define MD5_MAC_LEN 16

struct MD5Context {
	u32 buf[4];
	u32 bits[2];
	unsigned char in[64];
};

void MD5Init(struct MD5Context *context);
void MD5Update(struct MD5Context *context, unsigned char const *buf,
	       unsigned len);
void MD5Final(unsigned char digest[16], struct MD5Context *context);
void MD5Transform(u32 buf[4], u32 const in[16]);

/*
 * This is needed to make RSAREF happy on some MS-DOS compilers.
 */
typedef struct MD5Context MD5_CTX;


void md5_mac(unsigned char *key, unsigned int key_len,
             unsigned char *data, unsigned int data_len,
             unsigned char *mac);
void hmac_md5(unsigned char *key, unsigned int key_len,
	      unsigned char *data, unsigned int data_len,
	      unsigned char *mac);

#endif