src/utils/lib/md4.h

   1 #ifndef MD4_H
   2 #define MD4_H
   3
   4 /* MD4C.C - RSA Data Security, Inc., MD4 message-digest algorithm
   5  */
   6
   7 /* Copyright (C) 1990-2, RSA Data Security, Inc. All rights reserved.
   8
   9    License to copy and use this software is granted provided that it
  10    is identified as the "RSA Data Security, Inc. MD4 Message-Digest
  11    Algorithm" in all material mentioning or referencing this software
  12    or this function.
  13
  14    License is also granted to make and use derivative works provided
  15    that such works are identified as "derived from the RSA Data
  16    Security, Inc. MD4 Message-Digest Algorithm" in all material
  17    mentioning or referencing the derived work.
  18
  19    RSA Data Security, Inc. makes no representations concerning either
  20    the merchantability of this software or the suitability of this
  21    software for any particular purpose. It is provided "as is"
  22    without express or implied warranty of any kind.
  23
  24    These notices must be retained in any copies of any part of this
  25    documentation and/or software.
  26  */
  27
  28 /* PROTOTYPES should be set to one if and only if the compiler supports
  29      function argument prototyping.
  30    The following makes PROTOTYPES default to 0 if it has not already
  31      been defined with C compiler flags.
  32  */
  33 #ifndef PROTOTYPES
  34 #define PROTOTYPES 0
  35 #endif
  36
  37 /* POINTER defines a generic pointer type */
  38 typedef unsigned char *POINTER;
  39
  40 /* UINT2 defines a two byte word */
  41 typedef unsigned short int UINT2;
  42
  43 /* UINT4 defines a four byte word */
  44 typedef unsigned int UINT4;
  45
  46 /* PROTO_LIST is defined depending on how PROTOTYPES is defined above.
  47    If using PROTOTYPES, then PROTO_LIST returns the list, otherwise it
  48      returns an empty list.
  49  */
  50
  51 #if PROTOTYPES
  52 #define PROTO_LIST(list) list
  53 #else
  54 #define PROTO_LIST(list) ()
  55 #endif
  56
  57 /* MD4 context. */
  58 typedef struct {
  59   UINT4 state[4];                                   /* state (ABCD) */
  60   UINT4 count[2];        /* number of bits, modulo 2^64 (lsb first) */
  61   unsigned char buffer[64];                         /* input buffer */
  62 } MD4_CTX;
  63
  64 void MD4Init PROTO_LIST ((MD4_CTX *));
  65 void MD4Update PROTO_LIST
  66   ((MD4_CTX *, unsigned char *, unsigned int));
  67 void MD4Final PROTO_LIST ((unsigned char [16], MD4_CTX *));
  68
  69 #define md4_init(contextp) Md4Init(contextp)
  70 #define md4_append(contextp,buffer,len) MD4Update(contextp,buffer,len)
  71 #define md4_finish(contextp,digest) MD4Final(digest, contextp)
  72
  73 #endif