dist/ipf/md5.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  ***********************************************************************
   5  ** md5.h -- header file for implementation of MD5                    **
   6  ** RSA Data Security, Inc. MD5 Message-Digest Algorithm              **
   7  ** Created: 2/17/90 RLR                                              **
   8  ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version               **
   9  ** Revised (for MD5): RLR 4/27/91                                    **
  10  **   -- G modified to have y&~z instead of y&z                       **
  11  **   -- FF, GG, HH modified to add in last register done             **
  12  **   -- Access pattern: round 2 works mod 5, round 3 works mod 3     **
  13  **   -- distinct additive constant for each step                     **
  14  **   -- round 4 added, working mod 7                                 **
  15  ***********************************************************************
  16  */
  17
  18 /*
  19  ***********************************************************************
  20  ** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved.  **
  21  **                                                                   **
  22  ** License to copy and use this software is granted provided that    **
  23  ** it is identified as the "RSA Data Security, Inc. MD5 Message-     **
  24  ** Digest Algorithm" in all material mentioning or referencing this  **
  25  ** software or this function.                                        **
  26  **                                                                   **
  27  ** License is also granted to make and use derivative works          **
  28  ** provided that such works are identified as "derived from the RSA  **
  29  ** Data Security, Inc. MD5 Message-Digest Algorithm" in all          **
  30  ** material mentioning or referencing the derived work.              **
  31  **                                                                   **
  32  ** RSA Data Security, Inc. makes no representations concerning       **
  33  ** either the merchantability of this software or the suitability    **
  34  ** of this software for any particular purpose.  It is provided "as  **
  35  ** is" without express or implied warranty of any kind.              **
  36  **                                                                   **
  37  ** These notices must be retained in any copies of any part of this  **
  38  ** documentation and/or software.                                    **
  39  ***********************************************************************
  40  */
  41
  42 #if !defined(__MD5_INCLUDE__) && !defined(_SYS_MD5_H)
  43
  44 #ifndef __P
  45 # ifdef __STDC__
  46 #  define       __P(x)  x
  47 # else
  48 #  define       __P(x)  ()
  49 # endif
  50 #endif
  51 #ifndef __STDC__
  52 # undef         const
  53 # define        const
  54 #endif
  55
  56 /* typedef a 32-bit type */
  57 typedef unsigned int UINT4;
  58
  59 /* Data structure for MD5 (Message-Digest) computation */
  60 typedef struct {
  61   UINT4 i[2];                   /* number of _bits_ handled mod 2^64 */
  62   UINT4 buf[4];                                    /* scratch buffer */
  63   unsigned char in[64];                              /* input buffer */
  64   unsigned char digest[16];     /* actual digest after MD5Final call */
  65 } MD5_CTX;
  66
  67 extern void MD5Init __P((MD5_CTX *));
  68 extern void MD5Update __P((MD5_CTX *, unsigned char *, unsigned int));
  69 extern void MD5Final __P((unsigned char *, MD5_CTX *));
  70
  71 #define __MD5_INCLUDE__
  72 #endif /* __MD5_INCLUDE__ */