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0004: Creating a Self-Signed Public Key Infrastructure (PKI)

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i12bretro 2021-01-03 13:17:52 -05:00
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<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Creating a Self-Signed Public Key Infrastructure (PKI)</title>
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<h1>Creating a Self-Signed Public Key Infrastructure (PKI)</h1>
</div>
<div></div>
<div id="content">
<h2>
Getting Started</h2>
<ol>
<li>
Download X Certificate Key Manager<a href="https://hohnstaedt.de/xca/index.php/download" target="_blank"> Download</a></li>
<li>
Extract X Certificate Key Manager</li>
<li>
Launch xca.exe</li>
<li>
Select File &gt; Create Database</li>
<li>
Name your PKI database and click save</li>
<li>
Enter a password for you database</li>
<li>
Re-type to confirm and click OK</li>
</ol>
<h2>
Creating the Root Certificate Authority</h2>
<ol>
<li>
Navigate to the Certificates tab</li>
<li>
Click the New Certificate button</li>
<li>
Click the Subject tab</li>
<li>
Complete the Distinguished Name section<br />
<p>
internalName: i12bretro Root CA<br />
countryName: US<br />
stateOrProvinceName: Virginia<br />
localityName: Northern<br />
organizationName: i12bretro<br />
organizationUnitName: i12bretro Certificate Authority<br />
commonName: i12bretro Root CA</p>
</li>
<li>
Click the Generate a New Key button</li>
<li>
Enter a name and set the key size to at least 2048</li>
<li>
Click Create</li>
<li>
Click on the Extensions tab</li>
<li>
Select Certificate Authority from the type list</li>
<li>
Update the validity dates to fit your needs</li>
<li>
Click the Key Usage tab</li>
<li>
Under Key Usage select Digital Signature, Key Agreement and Certificate Sign</li>
<li>
Click OK to create the certificate</li>
</ol>
<h2>
Creating the Intermediate Certificate Authority</h2>
<ol>
<li>
From the Certificates tab, right click on your Root CA certificate</li>
<li>
Select New</li>
<li>
On the Source tab, make sure Use this Certificate for signing is selected</li>
<li>
Verify your Root CA certificate is selected from the drop down</li>
<li>
Click the Subject tab</li>
<li>
Complete the Distinguished Name section
<p>
internalName: i12bretro Intermediate CA<br />
countryName: US<br />
stateOrProvinceName: Virginia<br />
localityName: Northern<br />
organizationName: i12bretro<br />
organizationUnitName: i12bretro Certificate Authority<br />
commonName: i12bretro Intermediate CA</p>
</li>
<li>
Click the Generate a New Key button</li>
<li>
Enter a name and set the key size to at least 2048</li>
<li>
Click Create</li>
<li>
Click on the Extensions tab</li>
<li>
Select Certificate Authority from the type list</li>
<li>
Update the validity dates to fit your needs</li>
<li>
Click the Key Usage tab</li>
<li>
Under Key Usage select Digital Signature, Key Agreement and Certificate Sign</li>
<li>
Click OK to create the certificate</li>
<li>
From this point forward, use the intermediate certificate to create end entity certificates</li>
</ol>
</div>
</div>
</body>
</html>