C语言语言 MD5的源码实例详解的源码实例详解
C语言语言 MD5源码源码
md5c.h:
/* POINTER defines a generic pointer type */
typedef unsigned char * POINTER;
/* UINT2 defines a two byte word */
//typedef unsigned short int UINT2;
/* UINT4 defines a four byte word */
typedef unsigned long int UINT4;
/* MD5 context. */
typedef struct {
UINT4 state[4]; /* state (ABCD) */
UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */
unsigned char buffer[64]; /* input buffer */
} MD5_CTX;
void MD5Init (MD5_CTX *context);
void MD5Update (MD5_CTX *context, unsigned char *input, unsigned int inputLen);
void MD5UpdaterString(MD5_CTX *context,const char *string);
int MD5FileUpdateFile (MD5_CTX *context,char *filename);
void MD5Final (unsigned char digest[16], MD5_CTX *context);
void MDString (char *string,unsigned char digest[16]);
int MD5File (char *filename,unsigned char digest[16]);
md5c.c:
/* MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm
*/
/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
rights reserved.
License to copy and use this software is granted provided that it
is identified as the "RSA Data Security, Inc. MD5 Message-Digest
Algorithm" in all material mentioning or referencing this software
or this function.
License is also granted to make and use derivative works provided
that such works are identified as "derived from the RSA Data
Security, Inc. MD5 Message-Digest Algorithm" in all material
mentioning or referencing the derived work.
RSA Data Security, Inc. makes no representations concerning either
the merchantability of this software or the suitability of this
software for any particular purpose. It is provided "as is"
without express or implied warranty of any kind.
These notices must be retained in any copies of any part of this
documentation and/or software.
*/
#include "md5c.h"
#include <string.h>
#include <stdio.h>
/* Constants for MD5Transform routine.
*/
#define S11 7
#define S12 12
#define S13 17
#define S14 22
#define S21 5
#define S22 9
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