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1 | // -*- mode: cpp; mode: fold -*- |
2 | // Description /*{{{*/ | |
233b185f | 3 | // $Id: md5.h,v 1.6 2001/05/07 05:06:52 jgg Exp $ |
17a10bf5 AL |
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 | |
1e3f4083 | 13 | block of data. This can be used to guard against corruption of a file. |
6e52073f AL |
14 | MD5 should not be used for tamper protection, use SHA or something more |
15 | secure. | |
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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 | ||
aa97e2e3 | 26 | #include <stdint.h> |
17a10bf5 | 27 | |
7ac56f8f | 28 | #include "hashsum_template.h" |
17a10bf5 | 29 | |
453b82a3 DK |
30 | #ifndef APT_10_CLEANER_HEADERS |
31 | #include <string> | |
32 | #include <cstring> | |
33 | #include <algorithm> | |
34 | #endif | |
a4f6bdc8 DK |
35 | #ifndef APT_8_CLEANER_HEADERS |
36 | using std::string; | |
37 | using std::min; | |
38 | #endif | |
39 | ||
7ac56f8f | 40 | typedef HashSumValue<128> MD5SumValue; |
17a10bf5 | 41 | |
c31c1dde | 42 | class MD5Summation : public SummationImplementation |
17a10bf5 | 43 | { |
ed478d8c | 44 | uint32_t Buf[4]; |
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45 | unsigned char Bytes[2*4]; |
46 | unsigned char In[16*4]; | |
47 | bool Done; | |
c31c1dde | 48 | |
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49 | public: |
50 | ||
644478e8 | 51 | bool Add(const unsigned char *inbuf, unsigned long long inlen) APT_OVERRIDE APT_NONNULL(2); |
c31c1dde DK |
52 | using SummationImplementation::Add; |
53 | ||
17a10bf5 | 54 | MD5SumValue Result(); |
c31c1dde | 55 | |
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56 | MD5Summation(); |
57 | }; | |
58 | ||
59 | #endif |