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<TITLE>Creating a New Key Pair and Self-Signed Certificate Using keytool (Java Developers Almanac Example)
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    <A HREF="../java.security.cert/pkg.html">java.security.cert</A><font color="#666666" class="xsmall-font">
        &nbsp;[9 examples]
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        <B><A HREF="../java.security.cert/pkg.html#Certificates">Certificates</A></B><font color="#666666" class="xsmall-font">
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  <h3>e223. Creating a New Key Pair and Self-Signed Certificate Using keytool</h3>

This example uses the <code>keytool</code> program to create a new key pair and
self-signed certificate for the principal <code>Duke</code>.  The example
generates a 1024-bit Digital Signature Algorithm (DSA) key pair.


<pre>    &gt; keytool -genkey -alias <font color="#0066ff"><i>alias</i></font> -keystore <font color="#0066ff"><i>.keystore</i></font>
    Enter keystore password: <font color="#0066ff"><i>password</i></font>
    What is your first and last name?
      [Unknown]: <font color="#0066ff"><i>Duke</i></font>
    What is the name of your organizational unit?
      [Unknown]: <font color="#0066ff"><i>JavaSoft</i></font>
    What is the name of your organization?
      [Unknown]: <font color="#0066ff"><i>Sun</i></font>
    What is the name of your City or Locality?
      [Unknown]: <font color="#0066ff"><i>Cupertino</i></font>
    What is the name of your State or Province?
      [Unknown]: <font color="#0066ff"><i>CA</i></font>
    What is the two-letter country code for this unit?
      [Unknown]: <font color="#0066ff"><i>US</i></font>
    Is &lt;CN=Duke, OU=JavaSoft, O=Sun, L=Cupertino, ST=CA, C=US&gt; correct?
      [no]: <font color="#0066ff"><i>yes</i></font>

</pre>
To create a 1024-bit RSA key:

<pre>    &gt; keytool -genkey -keyalg RSA -keysize 1024 -alias <font color="#0066ff"><i>alias</i></font> -keystore <font color="#0066ff"><i>.keystore</i></font>

</pre>
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            &nbsp;<b>Related Examples</b></font></td>
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e224. <a class="eglink" href="ExportCert.html?l=rel">
    Exporting a Certificate to a File
</a>
<br>

e225. <a class="eglink" href="ImportCert.html?l=rel">
    Importing a Certificate from a File
</a>
<br>

e226. <a class="eglink" href="ListCertFact.html?l=rel">
    Listing All Available Certificate Formats
</a>
<br>

e227. <a class="eglink" href="GetDn.html?l=rel">
    Getting the Subject and Issuer Distinguished Names of an X509 Certificate
</a>
<br>


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        See also: 
<a class="eglink" href="/egs/java.security.cert/pkg.html?l=rel#Certification%20Paths">
    Certification Paths
</a>&nbsp;&nbsp;

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