windows-server-2003/ds/published/inc/md5.w

#ifndef __MD5_H__
#define __MD5_H__

#ifndef RSA32API
#define RSA32API __stdcall
#endif

/*
 ***********************************************************************
 ** md5.h -- Header file for implementation of MD5                    **
 ** RSA Data Security, Inc. MD5 Message-Digest Algorithm              **
 ** Created: 2/17/90 RLR                                              **
 ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version               **
 ** Revised (for MD5): RLR 4/27/91                                    **
 **   -- G modified to have y&~z instead of y&z                       **
 **   -- FF, GG, HH modified to add in last register done             **
 **   -- Access pattern: round 2 works mod 5, round 3 works mod 3     **
 **   -- distinct additive constant for each step                     **
 **   -- round 4 added, working mod 7                                 **
 ***********************************************************************
 */

/*
 ***********************************************************************
 ** Copyright (C) 1990, RSA Data Security, Inc. 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.                                    **
 ***********************************************************************
 */

#ifdef __cplusplus
extern "C" {
#endif

/* Data structure for MD5 (Message-Digest) computation */
typedef struct {
  ULONG i[2];                          /* number of _bits_ handled mod 2^64 */
  ULONG buf[4];                                           /* scratch buffer */
  unsigned char in[64];                                     /* input buffer */
  unsigned char digest[16];            /* actual digest after MD5Final call */
} MD5_CTX;


#define MD5DIGESTLEN    16
#define MD5_LEN         MD5DIGESTLEN    // second def for WinNT source compatibility

#define PROTO_LIST(list)    list


/*
 * MTS: Each of these assumes MD5_CTX is locked against simultaneous use.
 */
void RSA32API MD5Init PROTO_LIST ((MD5_CTX *));
void RSA32API MD5Update PROTO_LIST ((MD5_CTX *, const unsigned char *, unsigned int));
void RSA32API MD5Final PROTO_LIST ((MD5_CTX *));

#ifdef __cplusplus
}
#endif

#endif // __MD5_H__