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<page xmlns="http://projectmallard.org/1.0/"
xmlns:its="http://www.w3.org/2005/11/its"
type="topic" style="task"
id="pgp-expired">
<info>
<link type="guide" xref="index#pgp-keys"/>
<revision version="0.1" date="2011-10-23" status="stub"/>
<revision pkgversion="3.9" version="0.1" date="2013-07-03" status="review"/>
<include href="legal.xml" xmlns="http://www.w3.org/2001/XInclude"/>
<credit type="author copyright">
<name>Aruna Sankaranarayanan</name>
<email its:translate="no">aruna.evam@gmail.com</email>
<years>2013</years>
</credit>
<desc>Can I still use it? Can expiration dates be changed?</desc>
</info>
<title>What happens if my key expires?</title>
<p>When your key expires, it becomes invalid. This means:</p>
<list>
<item>
<p>It can no longer be used to encrypt and decrypt messages.</p>
</item>
<item>
<p>It cannot sign other keys or receive signatures from other
keys.</p>
</item>
</list>
<p>Depending on how long you want your key to be valid, you can
<link xref="pgp-create#advanced">set an expiration date</link> for
it. By default, <app>Passwords and Keys</app> sets all keys to be valid
forever. That is, the keys never expire.</p>
<p>The expiration date on a key can be
<link xref="pgp-expiration-change">changed</link> anytime, even after
the key has expired. However, if you want to stop using the expired key, you
should <link xref="pgp-delete">delete</link> or
<link xref="subkeys-revoke">revoke</link> it.</p>
<note style="info">
<p>If you have any messages encrypted with an expired key, you must change
the expiration date on the key to decrypt such messages before deleting or
revoking it.</p>
</note>
</page>