| 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 | |
| 39 | typedef HashSumValue<128> MD5SumValue; |
| 40 | |
| 41 | class MD5Summation : public SummationImplementation |
| 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 |