#include?“stdafx.h“
#include?“md5.h“
using?namespace?std;

/*?Constants?for?MD5Transform?routine.?*/
#define?S11?7
#define?S12?12
#define?S13?17
#define?S14?22
#define?S21?5
#define?S22?9
#define?S23?14
#define?S24?20
#define?S31?4
#define?S32?11
#define?S33?16
#define?S34?23
#define?S41?6
#define?S42?10
#define?S43?15
#define?S44?21


/*?F?G?H?and?I?are?basic?MD5?functions.
*/
#define?F（x?y?z）?（（（x）?&?（y））?|?（（~x）?&?（z）））
#define?G（x?y?z）?（（（x）?&?（z））?|?（（y）?&?（~z）））
#define?H（x?y?z）?（（x）?^?（y）?^?（z））
#define?I（x?y?z）?（（y）?^?（（x）?|?（~z）））

/*?ROTATE_LEFT?rotates?x?left?n?bits.
*/
#define?ROTATE_LEFT（x?n）?（（（x）?<>?（32-（n））））

/*?FF?GG?HH?and?II?transformations?for?rounds?1?2?3?and?4.
Rotation?is?separate?from?addition?to?prevent?recomputation.
*/
#define?FF（a?b?c?d?x?s?ac）?{?\
	（a）?+=?F?（（b）?（c）?（d））?+?（x）?+?ac;?\
	（a）?=?ROTATE_LEFT?（（a）?（s））;?\
	（a）?+=?（b）;?\
}
#define?GG（a?b?c?d?x?s?ac）?{?\
	（a）?+=?G?（（b）?（c）?（d））?+?（x）?+?ac;?\
	（a）?=?ROTATE_LEFT?（（a）?（s））;?\
	（a）?+=?（b）;?\
}
#define?HH（a?b?c?d?x?s?ac）?{?\
	（a）?+=?H?（（b）?（c）?（d））?+?（x）?+?ac;?\
	（a）?=?ROTATE_LEFT?（（a）?（s））;?\
	（a）?+=?（b）;?\
}
#define?II（a?b?c?d?x?s?ac）?{?\
	（a）?+=?I?（（b）?（c）?（d））?+?（x）?+?ac;?\
	（a）?=?ROTATE_LEFT?（（a）?（s））;?\
	（a）?+=?（b）;?\
}


const?byte?MD5::PADDING[64]?=?{?0x80?};
const?char?MD5::HEX[16]?=?{
	‘0‘?‘1‘?‘2‘?‘3‘
	‘4‘?‘5‘?‘6‘?‘7‘
	‘8‘?‘9‘?‘a(chǎn)‘?‘b‘
	‘c‘?‘d‘?‘e‘?‘f‘
};


/*?Default?construct.?*/
MD5::MD5（）?{
	reset（）;
}

/*?Construct?a?MD5?object?with?a?input?buffer.?*/
MD5::MD5（const?void*?input?size_t?length）?{
	reset（）;
	update（input?length）;
}

/*?Construct?a?MD5?object?with?a?string.?*/
MD5::MD5（const?string&?str）?{
	reset（）;
	update（str）;
}

/*?Construct?a?MD5?object?with?a?file.?*/
MD5::MD5（ifstream&?in）?{
	reset（）;
	update（in）;
}

/*?Return?the?message-digest?*/
const?byte*?MD5::digest（）?{

	if?（!_finished）?{
		_finished?=?true;
		final（）;
	}
	return?_digest;
}

/*?Reset?the?calculate?state?*/
void?MD5::reset（）?{

	_finished?=?false;
	/*?reset?number?of?bits.?*/
	_count[0]?=?_count[1]?=?0;
	/*?Load?magic?initialization?constants.?*/
	_state[0]?=?0x67452301;
	_state[1]?=?0xefcdab89;
	_state[2]?=?0x98badcfe;
	_state[3]?=?0x10325476;
}

/*?Updating?the?context?with?a?input?buffer.?*/
void?MD5::update（const?void*?input?size_t?length）?{
	update（（const?byte*）input?length）;
}

/*?Updating?the?context?with?a?string.?*/
void?MD5::update（const?string&?str）?{
	update（（const?byte*）str.c_str（）?str.length（））;
}

/*?Updating?the?context?with?a?file.?*/
void?MD5::update（ifstream&?in）?{

	if?（!in）?{
		return;
	}

	std::streamsize?length;
	char?buffer[BUFFER_SIZE];
	while?（!in.eof（））?{
		in.read（buffer?BUFFER_SIZE）;
		length?=?in.gcount（）;
		if?（length?>?0）?{
			update（buffer?length）;
		}
	}
	in.close（）;
}

/*?MD5?block?update?operation.?Continues?a

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-02-21?15:40??MD5Checker\
?????目錄???????????0??2014-02-21?15:40??MD5Checker\MD5Checker\
?????文件??????105436??2014-02-21?14:51??MD5Checker\MD5Checker\MD5Checker.aps
?????文件????????1705??2014-02-21?13:26??MD5Checker\MD5Checker\MD5Checker.cpp
?????文件?????????469??2014-02-21?13:26??MD5Checker\MD5Checker\MD5Checker.h
?????文件????????5485??2014-02-21?14:51??MD5Checker\MD5Checker\MD5Checker.rc
?????文件????????5628??2014-02-21?14:50??MD5Checker\MD5Checker\MD5Checker.vcproj
?????文件????????1423??2014-02-21?15:29??MD5Checker\MD5Checker\MD5Checker.vcproj.CORP.caizhiming.user
?????文件????????5020??2014-02-21?14:50??MD5Checker\MD5Checker\MD5CheckerDlg.cpp
?????文件?????????698??2014-02-21?14:47??MD5Checker\MD5Checker\MD5CheckerDlg.h
?????文件????????2923??2014-02-21?13:26??MD5Checker\MD5Checker\ReadMe.txt
?????文件????????9512??2014-02-21?13:50??MD5Checker\MD5Checker\md5.cpp
?????文件????????1298??2008-08-19?10:37??MD5Checker\MD5Checker\md5.h
?????目錄???????????0??2014-02-21?15:40??MD5Checker\MD5Checker\res\
?????文件???????67646??2014-02-21?15:27??MD5Checker\MD5Checker\res\MD5Checker.ico
?????文件?????????366??2014-02-21?13:26??MD5Checker\MD5Checker\res\MD5Checker.rc2
?????文件???????16958??2014-02-21?15:20??MD5Checker\MD5Checker\res\MD5Checker64.ico
?????文件?????????774??2014-02-21?14:04??MD5Checker\MD5Checker\resource.h
?????文件?????????143??2014-02-21?13:26??MD5Checker\MD5Checker\stdafx.cpp
?????文件????????1854??2014-02-21?13:26??MD5Checker\MD5Checker\stdafx.h
?????文件????????1030??2014-02-21?13:26??MD5Checker\MD5Checker\targetver.h
?????文件????23694336??2014-02-21?15:40??MD5Checker\MD5Checker.ncb
?????文件?????????896??2014-02-21?13:26??MD5Checker\MD5Checker.sln
?????文件???????13824??2014-02-21?15:29??MD5Checker\MD5Checker.suo