apt  0.9.7.9
md5.h
1 // -*- mode: cpp; mode: fold -*-
2 // Description /*{{{*/
3 // $Id: md5.h,v 1.6 2001/05/07 05:06:52 jgg Exp $
4 /* ######################################################################
5 
6  MD5SumValue - Storage for a MD5Sum
7  MD5Summation - MD5 Message Digest Algorithm.
8 
9  This is a C++ interface to a set of MD5Sum functions. The class can
10  store a MD5Sum in 16 bytes of memory.
11 
12  A MD5Sum is used to generate a (hopefully) unique 16 byte number for a
13  block of data. This can be used to gaurd against corruption of a file.
14  MD5 should not be used for tamper protection, use SHA or something more
15  secure.
16 
17  There are two classes because computing a MD5 is not a continual
18  operation unless 64 byte blocks are used. Also the summation requires an
19  extra 18*4 bytes to operate.
20 
21  ##################################################################### */
22  /*}}}*/
23 #ifndef APTPKG_MD5_H
24 #define APTPKG_MD5_H
25 
26 
27 #include <string>
28 #include <cstring>
29 #include <algorithm>
30 #include <stdint.h>
31 
32 #include "hashsum_template.h"
33 
34 #ifndef APT_8_CLEANER_HEADERS
35 using std::string;
36 using std::min;
37 #endif
38 
40 
42 {
43  uint32_t Buf[4];
44  unsigned char Bytes[2*4];
45  unsigned char In[16*4];
46  bool Done;
47 
48  public:
49 
50  bool Add(const unsigned char *inbuf, unsigned long long inlen);
51  using SummationImplementation::Add;
52 
53  MD5SumValue Result();
54 
55  MD5Summation();
56 };
57 
58 #endif