mirror of https://github.com/lianthony/NT4.0
120 lines
4.7 KiB
120 lines
4.7 KiB
#ifndef _MD4_H_
|
|
#define _MD4_H_
|
|
|
|
/* MD4.H - header file for MD4C.C
|
|
*/
|
|
|
|
/* 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. MD4 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. MD4 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.
|
|
*/
|
|
|
|
/* This code differs from the MD4 implementation contained in Internet
|
|
RFC-1320 in the following respects:
|
|
|
|
1. "global.h" is no longer needed.
|
|
|
|
2. PROTO_LIST was removed from the function prototypes.
|
|
|
|
3. Comments on the use of the main calls added to aid developers.
|
|
*/
|
|
|
|
/* ---------------------------------------------------------------------
|
|
* The procedure for using the following function calls to compute a
|
|
* digest is as follows:
|
|
*
|
|
* MD4_CTX context;
|
|
* // create a storage context that persistes between calls.
|
|
*
|
|
* MD4_Init (&context);
|
|
* // initialize context's initial digest and byte-count
|
|
*
|
|
* MD4Update (&context, inputString, inputLength);
|
|
* // input first or only block of data to be digested.
|
|
*
|
|
* MD4Update (&context, inputString, inputLength);
|
|
* // input subsequent blocks or last block of data to be digested.
|
|
*
|
|
* MD4Final (digest, &context);
|
|
* // compute and return final 16-byte digest
|
|
*
|
|
* --------------------------------------------------------------------- */
|
|
|
|
typedef unsigned long UINT4;
|
|
|
|
/* POINTER defines a generic pointer type */
|
|
typedef unsigned char *POINTER;
|
|
|
|
/* MD4 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 */
|
|
} MD4_CTX;
|
|
|
|
/* ---------------------------------------------------------------------
|
|
* This function initializes the context for the message digest.
|
|
* It must be called as the first step and before processing input data.
|
|
* --------------------------------------------------------------------- */
|
|
|
|
void MD4Init ( MD4_CTX *context ) ; /* context */
|
|
|
|
/* ---------------------------------------------------------------------
|
|
* This function accepts input data of length "inputLen" and digests it.
|
|
* All data to be digested is input via this function and no other.
|
|
* The running byte count and any fragment of undigested data is stored
|
|
* in the context for retention between calls.
|
|
* --------------------------------------------------------------------- */
|
|
|
|
void MD4Update ( MD4_CTX *context, /* context */
|
|
POINTER input, /* input block */
|
|
unsigned int inputLen ) ; /* length of input block */
|
|
|
|
/* ---------------------------------------------------------------------
|
|
* This function accepts not data, but finishes up the digest and
|
|
* returns the 16 byte resulting message digest. Finishing up includes
|
|
* taking any undigested fragment stored in the context, padding the
|
|
* message, appending the length and then digesting the resulting string.
|
|
* --------------------------------------------------------------------- */
|
|
|
|
void MD4Final ( unsigned char *digest, /* 16-byte message digest */
|
|
MD4_CTX *context ) ; /* context */
|
|
|
|
/* ---------------------------------------------------------------------
|
|
|
|
The MD4 test suite results, contained in appendix A.5 of RFC-1320,
|
|
are as listed below. They are printed by the "mddriver.c" test
|
|
driver contained in appendix A.4 of RFC-1320.
|
|
|
|
MD4 test suite:
|
|
MD4 ("") = 31d6cfe0d16ae931b73c59d7e0c089c0
|
|
MD4 ("a") = bde52cb31de33e46245e05fbdbd6fb24
|
|
MD4 ("abc") = a448017aaf21d8525fc10ae87aa6729d
|
|
MD4 ("message digest") = d9130a8164549fe818874806e1c7014b
|
|
MD4 ("abcdefghijklmnopqrstuvwxyz") = d79e1c308aa5bbcdeea8ed63df412da9
|
|
MD4 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
|
|
= 043f8582f241db351ce627e153e7f0e4
|
|
MD4 ("123456789012345678901234567890123456789012345678901234567890123
|
|
45678901234567890") = e33b4ddc9c38f2199c3e7b164fcc0536
|
|
|
|
* --------------------------------------------------------------------- */
|
|
|
|
#endif
|
|
|