pppd/md5.h

   1 /*
   2  ***********************************************************************
   3  ** md5.h -- header file for implementation of MD5                    **
   4  ** RSA Data Security, Inc. MD5 Message-Digest Algorithm              **
   5  ** Created: 2/17/90 RLR                                              **
   6  ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version               **
   7  ** Revised (for MD5): RLR 4/27/91                                    **
   8  **   -- G modified to have y&~z instead of y&z                       **
   9  **   -- FF, GG, HH modified to add in last register done             **
  10  **   -- Access pattern: round 2 works mod 5, round 3 works mod 3     **
  11  **   -- distinct additive constant for each step                     **
  12  **   -- round 4 added, working mod 7                                 **
  13  ***********************************************************************
  14  */
  15
  16 /*
  17  ***********************************************************************
  18  ** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved.  **
  19  **                                                                   **
  20  ** License to copy and use this software is granted provided that    **
  21  ** it is identified as the "RSA Data Security, Inc. MD5 Message-     **
  22  ** Digest Algorithm" in all material mentioning or referencing this  **
  23  ** software or this function.                                        **
  24  **                                                                   **
  25  ** License is also granted to make and use derivative works          **
  26  ** provided that such works are identified as "derived from the RSA  **
  27  ** Data Security, Inc. MD5 Message-Digest Algorithm" in all          **
  28  ** material mentioning or referencing the derived work.              **
  29  **                                                                   **
  30  ** RSA Data Security, Inc. makes no representations concerning       **
  31  ** either the merchantability of this software or the suitability    **
  32  ** of this software for any particular purpose.  It is provided "as  **
  33  ** is" without express or implied warranty of any kind.              **
  34  **                                                                   **
  35  ** These notices must be retained in any copies of any part of this  **
  36  ** documentation and/or software.                                    **
  37  ***********************************************************************
  38  */
  39
  40 #ifndef __MD5_INCLUDE__
  41
  42 /* typedef a 32-bit type */
  43 typedef unsigned int UINT4;
  44
  45 /* Data structure for MD5 (Message-Digest) computation */
  46 typedef struct {
  47   UINT4 i[2];                   /* number of _bits_ handled mod 2^64 */
  48   UINT4 buf[4];                                    /* scratch buffer */
  49   unsigned char in[64];                              /* input buffer */
  50   unsigned char digest[16];     /* actual digest after MD5Final call */
  51 } MD5_CTX;
  52
  53 void MD5Init ();
  54 void MD5Update ();
  55 void MD5Final ();
  56
  57 #define __MD5_INCLUDE__
  58 #endif /* __MD5_INCLUDE__ */