winutils/md5sum/index.html

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<p align="center"><b><font size="5">MD5 And CRC-32 Calculation Utilities For Windows (Similar To Unix
&quot;<i>md5sum
-b</i>&quot;)</font></b></p>
<hr>

One of the most common requests I receive is for a utility to calculate the MD5
message digest of a file on a Windows system.&nbsp; (Unix has a command to do
this, <i>md5sum</i>.)&nbsp; Usually the need for such a utility arises in
verifying a download (an ISO CD image, for example).
<p>Both the graphical and console-mode utilities supplied on this page are also
included in the <i>ESRG Tool Set</i> download, but it is far quicker and easier
to just grab one or both utilities here.</p>
<p>Both utilities were created using Microsoft Visual C++ 6.0, and have no
external dependencies (no .DLL dependencies, for example).&nbsp; They should run
on any Windows 95 or later system.</p>
<p>Both utilities calculate the MD5 message digest only in &quot;binary&quot;
mode (i.e. &quot;<i>md5sum -b</i>&quot; in Unix).&nbsp; This is the mode which
is used in calculating the MD5 message digest accompanying downloads.</p>
<p>The graphical version of the utility presents a graphical interface</p>
<p align="center"><img border="0" src="g_util_01.gif" width="533" height="136"></p>
<p>and one may then either select files using drag'n'drop or the <i>File</i>
manu.&nbsp; The utility will then calculate the MD5 message digest and CRC-32 of
the file(s) selected.&nbsp; The results may be copied and pasted for printing,
archiving, or other purposes.&nbsp;</p>
<p align="center"><img border="0" src="g_util_02.gif" width="533" height="136"></p>
<p>The console mode version of the utility, which is named md5.exe, operates
similarly, except it only calculates the MD5 (no CRC-32), and it will only
process one file at a time.&nbsp; There is also a separate CRC-32 utility
available.</p>
<p align="center"><img border="0" src="g_util_03.gif" width="620" height="131"></p>
<p>These standalone utilities can be downloaded from the links in the table
below.</p>
<table border="2" width="100%">
  <tr>
    <td width="21%"><b>Download Link</b></td>
    <td width="35%"><b>Description</b></td>
    <td width="44%"><b>File Size And MD5</b></td>
  </tr>
  <tr>
    <td width="21%"><a href="gfsw.exe">gfsw.exe</a></td>
    <td width="35%">Windows graphical MD5 and CRC-32 utility.</td>
    <td width="44%">Size:<br>
      <font face="Courier" size="2">65,536</font><br>
      MD-5<br>
      <font face="Courier" size="2">0c726ad4d87684a58d765540547b1f45</font></td>
  </tr>
  <tr>
    <td width="21%"><a href="md5.exe">md5.exe</a></td>
    <td width="35%">Windows console-mode MD5 utility.</td>
    <td width="44%">Size:<br>
      <font face="Courier" size="2">53,248</font><br>
        MD-5:<br>
      <font face="Courier" size="2">b6ced14d5488702906a3323b79aa42df</font></td>
  </tr>
  <tr>
    <td width="21%"><a href="crc32.exe">crc32.exe</a></td>
    <td width="35%">Windows console-mode CRC-32 utility.</td>
    <td width="44%">Size:<br>
      <font face="Courier" size="2">49,152</font><br>
        MD-5:<br>
      <font face="Courier" size="2">c9e98639ad3a3ade45cf21234fb6e1e0</font></td>
  </tr>
</table>
<p><b><u>Other notes:</u></b></p>
<ul>
  <li>In terms of speed, the utilities seem to be about 95% as fast (i.e. almost
    identical speed) as the Cygwin <i>md5sum</i> utility.</li>
  <li>The source code of these utilities is packaged with the <i>ESRG Tool Set</i>
    source code.</li>
  <li>The MD5 message digest is covered in <a href="../../docs/rfc1321.txt">RFC
    1321</a>.</li>
</ul>
<hr>
<p align="center" style="margin-top: -2; margin-bottom: -1"><font size="1">Sound
credit:&nbsp; George Carlin, <i>Parental Advisory</i>.<br>This page
maintained by <a href="mailto:dtashley@users.sourceforge.net"> David T. Ashley</a>.<br>
$Header: /cvsroot/esrg/sfesrg/esrgweba/htdocs/winutils/md5sum/index.html,v 1.2 2003/05/15 15:47:41 dtashley Exp $</font></p>
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8			"md5sum -b")</title>
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14
15			<p align="center"><b><font size="5">MD5 And CRC-32 Calculation Utilities For Windows (Similar To Unix
16			"<i>md5sum
17			-b</i>")</font></b></p>
18			<hr>
19
20			One of the most common requests I receive is for a utility to calculate the MD5
21			message digest of a file on a Windows system.  (Unix has a command to do
22			this, <i>md5sum</i>.)  Usually the need for such a utility arises in
23			verifying a download (an ISO CD image, for example).
24			<p>Both the graphical and console-mode utilities supplied on this page are also
25			included in the <i>ESRG Tool Set</i> download, but it is far quicker and easier
26			to just grab one or both utilities here.</p>
27			<p>Both utilities were created using Microsoft Visual C++ 6.0, and have no
28			external dependencies (no .DLL dependencies, for example).  They should run
29			on any Windows 95 or later system.</p>
30			<p>Both utilities calculate the MD5 message digest only in "binary"
31			mode (i.e. "<i>md5sum -b</i>" in Unix).  This is the mode which
32			is used in calculating the MD5 message digest accompanying downloads.</p>
33			<p>The graphical version of the utility presents a graphical interface</p>
34			<p align="center"><img border="0" src="g_util_01.gif" width="533" height="136"></p>
35			<p>and one may then either select files using drag'n'drop or the <i>File</i>
36			manu.  The utility will then calculate the MD5 message digest and CRC-32 of
37			the file(s) selected.  The results may be copied and pasted for printing,
38			archiving, or other purposes. </p>
39			<p align="center"><img border="0" src="g_util_02.gif" width="533" height="136"></p>
40			<p>The console mode version of the utility, which is named md5.exe, operates
41			similarly, except it only calculates the MD5 (no CRC-32), and it will only
42			process one file at a time.  There is also a separate CRC-32 utility
43			available.</p>
44			<p align="center"><img border="0" src="g_util_03.gif" width="620" height="131"></p>
45			<p>These standalone utilities can be downloaded from the links in the table
46			below.</p>
47			<table border="2" width="100%">
48			<tr>
49			<td width="21%"><b>Download Link</b></td>
50			<td width="35%"><b>Description</b></td>
51			<td width="44%"><b>File Size And MD5</b></td>
52			</tr>
53			<tr>
54			<td width="21%"><a href="gfsw.exe">gfsw.exe</a></td>
55			<td width="35%">Windows graphical MD5 and CRC-32 utility.</td>
56			<td width="44%">Size:<br>
57			<font face="Courier" size="2">65,536</font><br>
58			MD-5<br>
59			<font face="Courier" size="2">0c726ad4d87684a58d765540547b1f45</font></td>
60			</tr>
61			<tr>
62			<td width="21%"><a href="md5.exe">md5.exe</a></td>
63			<td width="35%">Windows console-mode MD5 utility.</td>
64			<td width="44%">Size:<br>
65			<font face="Courier" size="2">53,248</font><br>
66			MD-5:<br>
67			<font face="Courier" size="2">b6ced14d5488702906a3323b79aa42df</font></td>
68			</tr>
69			<tr>
70			<td width="21%"><a href="crc32.exe">crc32.exe</a></td>
71			<td width="35%">Windows console-mode CRC-32 utility.</td>
72			<td width="44%">Size:<br>
73			<font face="Courier" size="2">49,152</font><br>
74			MD-5:<br>
75			<font face="Courier" size="2">c9e98639ad3a3ade45cf21234fb6e1e0</font></td>
76			</tr>
77			</table>
78			<p><b><u>Other notes:</u></b></p>
79			<ul>
80			<li>In terms of speed, the utilities seem to be about 95% as fast (i.e. almost
81			identical speed) as the Cygwin <i>md5sum</i> utility.</li>
82			<li>The source code of these utilities is packaged with the <i>ESRG Tool Set</i>
83			source code.</li>
84			<li>The MD5 message digest is covered in <a href="../../docs/rfc1321.txt">RFC
85			1321</a>.</li>
86			</ul>
87			<hr>
88			<p align="center" style="margin-top: -2; margin-bottom: -1"><font size="1">Sound
89			credit:  George Carlin, <i>Parental Advisory</i>.<br>This page
90			maintained by <a href="mailto:dtashley@users.sourceforge.net"> David T. Ashley</a>.<br>
91			$Header: /cvsroot/esrg/sfesrg/esrgweba/htdocs/winutils/md5sum/index.html,v 1.2 2003/05/15 15:47:41 dtashley Exp $</font></p>
92			<hr noshade size="5">
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