// -*- mode: cpp; mode: fold -*- // Description /*{{{*/ // $Id: md5.h,v 1.6 2001/05/07 05:06:52 jgg Exp $ /* ###################################################################### MD5SumValue - Storage for a MD5Sum MD5Summation - MD5 Message Digest Algorithm. This is a C++ interface to a set of MD5Sum functions. The class can store a MD5Sum in 16 bytes of memory. A MD5Sum is used to generate a (hopefully) unique 16 byte number for a block of data. This can be used to guard against corruption of a file. MD5 should not be used for tamper protection, use SHA or something more secure. There are two classes because computing a MD5 is not a continual operation unless 64 byte blocks are used. Also the summation requires an extra 18*4 bytes to operate. ##################################################################### */ /*}}}*/ #ifndef APTPKG_MD5_H #define APTPKG_MD5_H #include <stdint.h> #include "hashsum_template.h" #ifndef APT_10_CLEANER_HEADERS #include <string> #include <cstring> #include <algorithm> #endif #ifndef APT_8_CLEANER_HEADERS using std::string; using std::min; #endif typedef HashSumValue<128> MD5SumValue; class MD5Summation : public SummationImplementation { uint32_t Buf[4]; unsigned char Bytes[2*4]; unsigned char In[16*4]; bool Done; public: bool Add(const unsigned char *inbuf, unsigned long long inlen) APT_OVERRIDE APT_NONNULL(2); using SummationImplementation::Add; MD5SumValue Result(); MD5Summation(); }; #endif