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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="#EXAMPLES">EXAMPLES</a></li>
  <li><a href="#NOTES">NOTES</a></li>
  <li><a href="#SEE-ALSO">SEE ALSO</a></li>
  <li><a href="#COPYRIGHT">COPYRIGHT</a></li>
</ul>

<h1 id="NAME">NAME</h1>

<p>openssl-crl2pkcs7, crl2pkcs7 - Create a PKCS#7 structure from a CRL and certificates</p>

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

<p><b>openssl</b> <b>crl2pkcs7</b> [<b>-help</b>] [<b>-inform PEM|DER</b>] [<b>-outform PEM|DER</b>] [<b>-in filename</b>] [<b>-out filename</b>] [<b>-certfile filename</b>] [<b>-nocrl</b>]</p>

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

<p>The <b>crl2pkcs7</b> command takes an optional CRL and one or more certificates and converts them into a PKCS#7 degenerate &quot;certificates only&quot; structure.</p>

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

<dl>

<dt id="help"><b>-help</b></dt>
<dd>

<p>Print out a usage message.</p>

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

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

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

<p>This specifies the PKCS#7 structure output format. <b>DER</b> format is DER encoded PKCS#7 structure.<b>PEM</b> (the default) is a base64 encoded version of the DER form with header and footer lines. The default format is PEM.</p>

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

<p>This specifies the input filename to read a CRL from or standard input if this option is not specified.</p>

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

<p>Specifies the output filename to write the PKCS#7 structure to or standard output by default.</p>

</dd>
<dt id="certfile-filename"><b>-certfile filename</b></dt>
<dd>

<p>Specifies a filename containing one or more certificates in <b>PEM</b> format. All certificates in the file will be added to the PKCS#7 structure. This option can be used more than once to read certificates from multiple files.</p>

</dd>
<dt id="nocrl"><b>-nocrl</b></dt>
<dd>

<p>Normally a CRL is included in the output file. With this option no CRL is included in the output file and a CRL is not read from the input file.</p>

</dd>
</dl>

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

<p>Create a PKCS#7 structure from a certificate and CRL:</p>

<pre><code> openssl crl2pkcs7 -in crl.pem -certfile cert.pem -out p7.pem</code></pre>

<p>Creates a PKCS#7 structure in DER format with no CRL from several different certificates:</p>

<pre><code> openssl crl2pkcs7 -nocrl -certfile newcert.pem
        -certfile demoCA/cacert.pem -outform DER -out p7.der</code></pre>

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

<p>The output file is a PKCS#7 signed data structure containing no signers and just certificates and an optional CRL.</p>

<p>This utility can be used to send certificates and CAs to Netscape as part of the certificate enrollment process. This involves sending the DER encoded output as MIME type application/x-x509-user-cert.</p>

<p>The <b>PEM</b> encoded form with the header and footer lines removed can be used to install user certificates and CAs in MSIE using the Xenroll control.</p>

<h1 id="SEE-ALSO">SEE ALSO</h1>

<p><a href="../man1/pkcs7.html">pkcs7(1)</a></p>

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

<p>Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.</p>

<p>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>.</p>


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