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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="#RESTRICTIONS">RESTRICTIONS</a></li>
 <li><a href="#SEE-ALSO">SEE ALSO</a></li>
 <li><a href="#COPYRIGHT">COPYRIGHT</a></li>
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openssl-pkcs7, pkcs7 - PKCS#7 utility

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

openssl pkcs7 [-help] [-inform PEM|DER] [-outform PEM|DER] [-in filename] [-out filename] [-print_certs] [-text] [-noout] [-engine id]

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

The pkcs7 command processes PKCS#7 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 PKCS#7 v1.5 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="print_certs">-print_certs</dt>
<dd>

Prints out any certificates or CRLs contained in the file. They are preceded by their subject and issuer names in one line format.

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

Prints out certificates details in full rather than just subject and issuer names.

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

Don&#39;t output the encoded version of the PKCS#7 structure (or certificates is -print_certs is set).

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

Specifying an engine (by its unique id string) will cause pkcs7 to attempt to obtain a functional reference to the specified engine, thus initialising it if needed. The engine will then be set as the default for all available algorithms.

</dd>
</dl>

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

Convert a PKCS#7 file from PEM to DER:

<pre><code> openssl pkcs7 -in file.pem -outform DER -out file.der</code></pre>

Output all certificates in a file:

<pre><code> openssl pkcs7 -in file.pem -print_certs -out certs.pem</code></pre>

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

The PEM PKCS#7 format uses the header and footer lines:

<pre><code> -----BEGIN PKCS7-----
 -----END PKCS7-----</code></pre>

For compatibility with some CAs it will also accept:

<pre><code> -----BEGIN CERTIFICATE-----
 -----END CERTIFICATE-----</code></pre>

<h1 id="RESTRICTIONS">RESTRICTIONS</h1>

There is no option to print out all the fields of a PKCS#7 file.

This PKCS#7 routines only understand PKCS#7 v 1.5 as specified in RFC2315 they cannot currently parse, for example, the new CMS as described in RFC2630.

<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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