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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>ASN.1 Editor</title>
</head>
<body>
<div class="Section1">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
mso-outline-level:2"><b><span style="font-size:16.0pt;font-family:Verdana;
color:#FF9900">ASN.1 Editor<o:p>
</o:p>
</span></b></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="width:100.0%;
mso-cellspacing:0in;mso-padding-alt:0in 5.4pt 0in 5.4pt">
<tr>
<td width="100%" valign="top" style="width:100.0%;padding:.75pt .75pt .75pt .75pt">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
mso-outline-level:2"><b><span style="font-size:13.0pt;font-family:Verdana;
color:#FF9900">Introduction: <o:p>
</o:p>
</span></b></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:Verdana;color:black">ASN.1*
DER** encoded data is widely used in digital security protocols. The
encoded data is not readable by regular text editor. The ASN.1 Editor is
designed to allow user to view and modify the encoded data
easily. </span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.0pt; font-family: Verdana; color: black">Note:
</span><span style="font-size:10.0pt;font-family:Verdana;color:black">This editor doesn�t do any data verification and schema
checking. The user needs to make sure the edited data conform to certain
constrains. </span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.0pt; font-family: Verdana; color: black">*
</span><span style="font-size:10.0pt;font-family:Verdana;color:black">ASN.1:
Abstract Syntax Notation One</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size: 10.0pt; font-family: Verdana; color: black">**
DER: </span><span style="font-size:10.0pt;font-family:Verdana;color:black">Distinguished
Encoding Rules</span><span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:13.0pt;font-family:Verdana;color:#FF9900"><a name="Main View">Main
View</a>:</span></b><span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></p>
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<o:p>
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<img border="0" src="Introd1.jpg" width="716" height="535"></span>
</span></p>
<h2>Main Features:</h2>
<h3>1. Dump text data:</h3>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:Verdana;color:black">You
can view the selected node branch text dump by right click the
designated node and select �<a href="#Text Viewer">View Node Text</a>�.<o:p>
</o:p>
</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:13.0pt;font-family:Verdana;color:#FF9900"><a name="Text Viewer">Text
Viewer</a>:</span></b><span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:Verdana;color:black"><!--[if gte vml 1]><v:shape
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<o:p>
<span style="font-size:10.0pt;font-family:Verdana;
mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:black;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:
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stroked="f">
<v:stroke joinstyle="miter"/>
<v:formulas>
<v:f eqn="if lineDrawn pixelLineWidth 0"/>
<v:f eqn="sum @0 1 0"/>
<v:f eqn="sum 0 0 @1"/>
<v:f eqn="prod @2 1 2"/>
<v:f eqn="prod @3 21600 pixelWidth"/>
<v:f eqn="prod @3 21600 pixelHeight"/>
<v:f eqn="sum @0 0 1"/>
<v:f eqn="prod @6 1 2"/>
<v:f eqn="prod @7 21600 pixelWidth"/>
<v:f eqn="sum @8 21600 0"/>
<v:f eqn="prod @7 21600 pixelHeight"/>
<v:f eqn="sum @10 21600 0"/>
</v:formulas>
<v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/>
<o:lock v:ext="edit" aspectratio="t"/>
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o:title=""/>
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<img src="DerEdi3.jpg" v:shapes="_x0000_i1025" width="575" height="439"></span>
</span></p>
<h3>2. Atomically Parse �encapsulates� data</h3>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:Verdana;color:black">OCTET
and BITSTRING may encapsulates DER encoded data, for example:<o:p>
</o:p>
</span></p>
<p class="MsoNormal" style="mso-layout-grid-align: none; text-autospace: none; line-height: 100%"><span style="font-size:9.0pt;font-family:"Courier New""><img border="0" src="Introd1.gif" width="640" height="253"><o:p>
</o:p>
</span></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><span style="font-size:9.0pt;font-family:"Courier New""><![if !supportEmptyParas]>
</span><span style="font-size:10.0pt;font-family:Verdana;color:black">ASN.1 Editor
can automatically parse the data structure.<o:p>
</o:p>
</span></p>
<h3>3. Hex Data Viewer<o:p>
</o:p>
</h3>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:Verdana;color:black"><![if !supportEmptyParas]>
Click: View->Hex Viewer, you can view the binary data structure.</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:13.0pt;font-family:Verdana;color:#FF9900"><a name="Hex Viewer">Hex
Viewer</a>:</span></b><span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:Verdana;color:black"><!--[if gte vml 1]><v:shape
id="_x0000_i1167" type="#_x0000_t75" style='width:427.5pt;height:354.75pt'>
<v:imagedata src="HomePage_files/image003.png" o:title=""/>
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<![if !vml]>
<![endif]>
<o:p>
<span style="font-size:10.0pt;font-family:Verdana;
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<v:formulas>
<v:f eqn="if lineDrawn pixelLineWidth 0"/>
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<v:f eqn="sum 0 0 @1"/>
<v:f eqn="prod @2 1 2"/>
<v:f eqn="prod @3 21600 pixelWidth"/>
<v:f eqn="prod @3 21600 pixelHeight"/>
<v:f eqn="sum @0 0 1"/>
<v:f eqn="prod @6 1 2"/>
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<v:f eqn="sum @8 21600 0"/>
<v:f eqn="prod @7 21600 pixelHeight"/>
<v:f eqn="sum @10 21600 0"/>
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<o:lock v:ext="edit" aspectratio="t"/>
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<img src="DerEdi2.jpg" v:shapes="_x0000_i1025" width="570" height="473"></span>
</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
<h3>4. Extensible OID table<span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></h3>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">OID.txt
file is installed in the same directory as Asn1Editor.EXE. </p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Here
is the sample records:</p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">0.9.2342.19200300.100.1.25, domainComponent<br>
1.2.36.68980861.1.1.10, Signet pilot<br>
1.2.36.68980861.1.1.11, Signet intraNet<br>
1.2.36.68980861.1.1.2, Signet personal<br>
1.2.36.68980861.1.1.20, Signet securityPolicy</p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">OID
and the description are comma separated. It can be extend in
order to add in additional OIDs.</p>
<h3>5. Change node content<span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></h3>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Double
click the selected node you can see the "<a href="#Node Content Editor">Node
Content Editor</a>". </p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:13.0pt;font-family:Verdana;color:#FF9900"><a name="Node Content Editor">Node
Content Editor</a>:</span></b><span style="font-size:10.0pt;font-family:Verdana;
color:black"><o:p>
</o:p>
</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:Verdana;color:black"><!--[if gte vml 1]><v:shape
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<![if !vml]>
<![endif]>
<o:p>
<span style="font-size:10.0pt;font-family:Verdana;
mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
color:black;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:
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<v:f eqn="sum 0 0 @1"/>
<v:f eqn="prod @2 1 2"/>
<v:f eqn="prod @3 21600 pixelWidth"/>
<v:f eqn="prod @3 21600 pixelHeight"/>
<v:f eqn="sum @0 0 1"/>
<v:f eqn="prod @6 1 2"/>
<v:f eqn="prod @7 21600 pixelWidth"/>
<v:f eqn="sum @8 21600 0"/>
<v:f eqn="prod @7 21600 pixelHeight"/>
<v:f eqn="sum @10 21600 0"/>
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<img src="DerEdi4.jpg" v:shapes="_x0000_i1025" width="561" height="345"></span>
</span></p>
<h3>6. Save selected node data<span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></h3>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">You
can save designated node data into a file by right click the node and
select "Save selected node as...".</p>
<h3>7. Copy selected node data into clipboard<span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></h3>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Right
click the node and select "Copy".</p>
<h3>8. Paste node from clipboard<span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></h3>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Right
click the insert point node and select "Paste as last child
node", "Paste before current node", or "Paste after
current node" to perform the insert operation.</p>
<h3>9. Binary/Hex/Base64 data converter<span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></h3>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:Verdana;color:black"><![if !supportEmptyParas]>
<![endif]>
<o:p>
</o:p>
Converting the data format between Hex, Base64, and PEM by the
"<a href="#Data Converter">Data Converter</a>".</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:13.0pt;font-family:Verdana;color:#FF9900"><a name="Data Converter">Data
Converter</a>:</span></b><span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></p>
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<![if !vml]>
<![endif]>
<o:p>
<span style="font-size:10.0pt;font-family:Verdana;
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<v:f eqn="if lineDrawn pixelLineWidth 0"/>
<v:f eqn="sum @0 1 0"/>
<v:f eqn="sum 0 0 @1"/>
<v:f eqn="prod @2 1 2"/>
<v:f eqn="prod @3 21600 pixelWidth"/>
<v:f eqn="prod @3 21600 pixelHeight"/>
<v:f eqn="sum @0 0 1"/>
<v:f eqn="prod @6 1 2"/>
<v:f eqn="prod @7 21600 pixelWidth"/>
<v:f eqn="sum @8 21600 0"/>
<v:f eqn="prod @7 21600 pixelHeight"/>
<v:f eqn="sum @10 21600 0"/>
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<v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/>
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o:title=""/>
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<img src="DerEdi5.jpg" v:shapes="_x0000_i1025" width="574" height="431"></span></o:p>
</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:Verdana;color:black"><![if !supportEmptyParas]>
<![endif]>
<o:p>
</span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
<p class="MsoNormal"><b>Author: Liping Dai</b></p>
<p class="MsoNormal"><b>Web: <a href="http://www.lipingshare.com">www.lipingshare.com</a></b></p>
<p class="MsoNormal"><b>Email: <a href="mailto:LipingShare@yahoo.com">LipingShare@yahoo.com</a></b></p>
<p class="MsoNormal"><b>August, 2003</b></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><![if !supportEmptyParas]>
<![endif]>
<span style="font-size:10.0pt;font-family:Verdana;color:black"><o:p>
</o:p>
</span></p>
</td>
</tr>
</table>
<p class="MsoNormal"> </p>
</div>
</body>
</html>
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Liping Dai has worked in IT industry more than 17 years. He moved to Canada in 1996. After worked in Toronto for 4 years, he relocated to Silicon Valley. He has strong passion in the area of Multi-core/Multi thread programming, Parallel Computing, Image Reorganization, Secure Communication, and Mobile Device development.
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