pred@2142: // MD5.CC - source code for the C++/object oriented translation and 
pred@2142: //          modification of MD5.
pred@2142: 
pred@2142: // Translation and modification (c) 1995 by Mordechai T. Abzug 
pred@2142: 
pred@2142: // This translation/ modification is provided "as is," without express or 
pred@2142: // implied warranty of any kind.
pred@2142: 
pred@2142: // The translator/ modifier does not claim (1) that MD5 will do what you think 
pred@2142: // it does; (2) that this translation/ modification is accurate; or (3) that 
pred@2142: // this software is "merchantible."  (Language for this disclaimer partially 
pred@2142: // copied from the disclaimer below).
pred@2142: 
pred@2142: /* based on:
pred@2142: 
pred@2142:    MD5.H - header file for MD5C.C
pred@2142:    MDDRIVER.C - test driver for MD2, MD4 and MD5
pred@2142: 
pred@2142:    Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
pred@2142: rights reserved.
pred@2142: 
pred@2142: License to copy and use this software is granted provided that it
pred@2142: is identified as the "RSA Data Security, Inc. MD5 Message-Digest
pred@2142: Algorithm" in all material mentioning or referencing this software
pred@2142: or this function.
pred@2142: 
pred@2142: License is also granted to make and use derivative works provided
pred@2142: that such works are identified as "derived from the RSA Data
pred@2142: Security, Inc. MD5 Message-Digest Algorithm" in all material
pred@2142: mentioning or referencing the derived work.
pred@2142: 
pred@2142: RSA Data Security, Inc. makes no representations concerning either
pred@2142: the merchantability of this software or the suitability of this
pred@2142: software for any particular purpose. It is provided "as is"
pred@2142: without express or implied warranty of any kind.
pred@2142: 
pred@2142: These notices must be retained in any copies of any part of this
pred@2142: documentation and/or software.
pred@2142: 
pred@2142: */
pred@2142: 
pred@2142: #include <stdio.h>
pred@2142: //#include <fstream.h>
pred@2142: //#include <iostream.h>
pred@2142: 
pred@2142: class MD5 {
pred@2142: 
pred@2142: public:
pred@2142: // methods for controlled operation:
pred@2142:   MD5              ();  // simple initializer
pred@2142:   void  update     (unsigned char *input, unsigned int input_length);
pred@2142:   void  update     (FILE *file);
pred@2142:   void  finalize   ();
pred@2142: 
pred@2142: // constructors for special circumstances.  All these constructors finalize
pred@2142: // the MD5 context.
pred@2142:   MD5              (unsigned char *string); // digest string, finalize
pred@2142:   MD5              (FILE *file);            // digest file, close, finalize
pred@2142: 
pred@2142: // methods to acquire finalized result
pred@2142:   unsigned char    *raw_digest ();  // digest as a 16-byte binary array
pred@2142:   unsigned char		*raw_digest(unsigned char buffer[16]);
pred@2142:   char *            hex_digest ();  // digest as a 33-byte ascii-hex string
pred@2142:   char *			hex_digest (char buffer[33]); //same as above, passing buffer
pred@2142: 
pred@2142: 
pred@2142: 
pred@2142: private:
pred@2142: 
pred@2142: // first, some types:
pred@2142:   typedef unsigned       int uint4; // assumes integer is 4 words long
pred@2142:   typedef unsigned short int uint2; // assumes short integer is 2 words long
pred@2142:   typedef unsigned      char uint1; // assumes char is 1 word long
pred@2142: 
pred@2142: // next, the private data:
pred@2142:   uint4 state[4];
pred@2142:   uint4 count[2];     // number of *bits*, mod 2^64
pred@2142:   uint1 buffer[64];   // input buffer
pred@2142:   uint1 digest[16];
pred@2142:   uint1 finalized;
pred@2142: 
pred@2142: // last, the private methods, mostly static:
pred@2142:   void init             ();               // called by all constructors
pred@2142:   void transform        (uint1 *buffer);  // does the real update work.  Note 
pred@2142:                                           // that length is implied to be 64.
pred@2142: 
pred@2142:   static void encode    (uint1 *dest, uint4 *src, uint4 length);
pred@2142:   static void decode    (uint4 *dest, uint1 *src, uint4 length);
pred@2142:   static void memcpy    (uint1 *dest, uint1 *src, uint4 length);
pred@2142:   static void memset    (uint1 *start, uint1 val, uint4 length);
pred@2142: 
pred@2142:   static inline uint4  rotate_left (uint4 x, uint4 n);
pred@2142:   static inline uint4  F           (uint4 x, uint4 y, uint4 z);
pred@2142:   static inline uint4  G           (uint4 x, uint4 y, uint4 z);
pred@2142:   static inline uint4  H           (uint4 x, uint4 y, uint4 z);
pred@2142:   static inline uint4  I           (uint4 x, uint4 y, uint4 z);
pred@2142:   static inline void   FF  (uint4& a, uint4 b, uint4 c, uint4 d, uint4 x, 
pred@2142: 			    uint4 s, uint4 ac);
pred@2142:   static inline void   GG  (uint4& a, uint4 b, uint4 c, uint4 d, uint4 x, 
pred@2142: 			    uint4 s, uint4 ac);
pred@2142:   static inline void   HH  (uint4& a, uint4 b, uint4 c, uint4 d, uint4 x, 
pred@2142: 			    uint4 s, uint4 ac);
pred@2142:   static inline void   II  (uint4& a, uint4 b, uint4 c, uint4 d, uint4 x, 
pred@2142: 			    uint4 s, uint4 ac);
pred@2142: 
pred@2142: };