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<ul id="index">
 <li><a href="#NAME">NAME</a></li>
 <li><a href="#SYNOPSIS">SYNOPSIS</a></li>
 <li><a href="#DESCRIPTION">DESCRIPTION</a></li>
 <li><a href="#OPTIONS">OPTIONS</a></li>
 <li><a href="#NOTES">NOTES</a></li>
 <li><a href="#EXAMPLES">EXAMPLES</a></li>
 <li><a href="#BUGS">BUGS</a></li>
 <li><a href="#SEE-ALSO">SEE ALSO</a></li>
 <li><a href="#COPYRIGHT">COPYRIGHT</a></li>
</ul>

openssl-crl, crl - CRL utility

<h1 id="SYNOPSIS">SYNOPSIS</h1>

openssl crl [-help] [-inform PEM|DER] [-outform PEM|DER] [-text] [-in filename] [-out filename] [-nameopt option] [-noout] [-hash] [-issuer] [-lastupdate] [-nextupdate] [-CAfile file] [-CApath dir]

<h1 id="DESCRIPTION">DESCRIPTION</h1>

The crl command processes CRL files in DER or PEM format.

<h1 id="OPTIONS">OPTIONS</h1>

<dl>

Print out a usage message.

</dd>
<dt id="inform-DER-PEM">-inform DER|PEM</dt>
<dd>

This specifies the input format. DER format is DER encoded CRL structure. PEM (the default) is a base64 encoded version of the DER form with header and footer lines.

</dd>
<dt id="outform-DER-PEM">-outform DER|PEM</dt>
<dd>

This specifies the output format, the options have the same meaning and default as the -inform option.

</dd>
<dt id="in-filename">-in filename</dt>
<dd>

This specifies the input filename to read from or standard input if this option is not specified.

</dd>
<dt id="out-filename">-out filename</dt>
<dd>

Specifies the output filename to write to or standard output by default.

</dd>
<dt id="text">-text</dt>
<dd>

Print out the CRL in text form.

</dd>
<dt id="nameopt-option">-nameopt option</dt>
<dd>

Option which determines how the subject or issuer names are displayed. See the description of -nameopt in <a href="../man1/x509.html">x509(1)</a>.

</dd>
<dt id="noout">-noout</dt>
<dd>

Don&#39;t output the encoded version of the CRL.

</dd>
<dt id="hash">-hash</dt>
<dd>

Output a hash of the issuer name. This can be use to lookup CRLs in a directory by issuer name.

</dd>
<dt id="hash_old">-hash_old</dt>
<dd>

Outputs the &quot;hash&quot; of the CRL issuer name using the older algorithm as used by OpenSSL before version 1.0.0.

</dd>
<dt id="issuer">-issuer</dt>
<dd>

Output the issuer name.

</dd>
<dt id="lastupdate">-lastupdate</dt>
<dd>

Output the lastUpdate field.

</dd>
<dt id="nextupdate">-nextupdate</dt>
<dd>

Output the nextUpdate field.

</dd>
<dt id="CAfile-file">-CAfile file</dt>
<dd>

Verify the signature on a CRL by looking up the issuing certificate in file.

</dd>
<dt id="CApath-dir">-CApath dir</dt>
<dd>

Verify the signature on a CRL by looking up the issuing certificate in dir. This directory must be a standard certificate directory: that is a hash of each subject name (using x509 -hash) should be linked to each certificate.

</dd>
</dl>

<h1 id="NOTES">NOTES</h1>

The PEM CRL format uses the header and footer lines:

<pre><code> -----BEGIN X509 CRL-----
 -----END X509 CRL-----</code></pre>

<h1 id="EXAMPLES">EXAMPLES</h1>

Convert a CRL file from PEM to DER:

<pre><code> openssl crl -in crl.pem -outform DER -out crl.der</code></pre>

Output the text form of a DER encoded certificate:

<pre><code> openssl crl -in crl.der -inform DER -text -noout</code></pre>

Ideally it should be possible to create a CRL using appropriate options and files too.

<h1 id="COPYRIGHT">COPYRIGHT</h1>

Licensed under the OpenSSL license (the &quot;License&quot;). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.

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