openssl-prebuild/linux_amd64/ssl/share/doc/openssl/html/man1/openssl-dsaparam.html

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<title>openssl-dsaparam</title>
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<ul>
<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="#see_also">SEE ALSO</a></li>
<li><a href="#history">HISTORY</a></li>
<li><a href="#copyright">COPYRIGHT</a></li>
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<h1><a name="name">NAME</a></h1>
<p>openssl-dsaparam - DSA parameter manipulation and generation</p>
<p>
</p>
<hr />
<h1><a name="synopsis">SYNOPSIS</a></h1>
<p><strong>openssl dsaparam</strong>
[<strong>-help</strong>]
[<strong>-inform</strong> <strong>DER</strong>|<strong>PEM</strong>]
[<strong>-outform</strong> <strong>DER</strong>|<strong>PEM</strong>]
[<strong>-in</strong> <em>filename</em>]
[<strong>-out</strong> <em>filename</em>]
[<strong>-noout</strong>]
[<strong>-text</strong>]
[<strong>-C</strong>]
[<strong>-genkey</strong>]
[<strong>-verbose</strong>]
[<strong>-rand</strong> <em>files</em>]
[<strong>-writerand</strong> <em>file</em>]
[<strong>-engine</strong> <em>id</em>]
[<em>numbits</em>]</p>
<p>
</p>
<hr />
<h1><a name="description">DESCRIPTION</a></h1>
<p>This command has been deprecated.
The <em>openssl-pkeyparam(1)</em> command should be used instead.</p>
<p>This command is used to manipulate or generate DSA parameter files.</p>
<p>DSA parameter generation can be a slow process and as a result the same set of
DSA parameters is often used to generate several distinct keys.</p>
<p>
</p>
<hr />
<h1><a name="options">OPTIONS</a></h1>
<dl>
<dt><strong><a name="help" class="item"><strong>-help</strong></a></strong></dt>
<dd>
<p>Print out a usage message.</p>
</dd>
<dt><strong><a name="inform_der_pem_outform_der_pem" class="item"><strong>-inform</strong> <strong>DER</strong>|<strong>PEM</strong>, <strong>-outform</strong> <strong>DER</strong>|<strong>PEM</strong></a></strong></dt>
<dd>
<p>The input and formats; the default is <strong>PEM</strong>.
See <em>openssl(1)/Format Options</em> for details.</p>
<p>Parameters are a sequence of <strong>ASN.1 INTEGER</strong>s: <strong>p</strong>, <strong>q</strong>, and <strong>g</strong>.
This is compatible with <a href="http://www.ietf.org/rfc/rfc2459.txt" class="rfc">RFC 2459</a> <strong>DSS-Parms</strong> structure.</p>
</dd>
<dt><strong><a name="in_filename" class="item"><strong>-in</strong> <em>filename</em></a></strong></dt>
<dd>
<p>This specifies the input filename to read parameters from or standard input if
this option is not specified. If the <em>numbits</em> parameter is included then
this option will be ignored.</p>
</dd>
<dt><strong><a name="out_filename" class="item"><strong>-out</strong> <em>filename</em></a></strong></dt>
<dd>
<p>This specifies the output filename parameters to. Standard output is used
if this option is not present. The output filename should <strong>not</strong> be the same
as the input filename.</p>
</dd>
<dt><strong><a name="noout" class="item"><strong>-noout</strong></a></strong></dt>
<dd>
<p>This option inhibits the output of the encoded version of the parameters.</p>
</dd>
<dt><strong><a name="text" class="item"><strong>-text</strong></a></strong></dt>
<dd>
<p>This option prints out the DSA parameters in human readable form.</p>
</dd>
<dt><strong><a name="c" class="item"><strong>-C</strong></a></strong></dt>
<dd>
<p>This option converts the parameters into C code. The parameters can then
be loaded by calling the <code>get_dsaXXX()</code> function.</p>
</dd>
<dt><strong><a name="genkey" class="item"><strong>-genkey</strong></a></strong></dt>
<dd>
<p>This option will generate a DSA either using the specified or generated
parameters.</p>
</dd>
<dt><strong><a name="verbose" class="item"><strong>-verbose</strong></a></strong></dt>
<dd>
<p>Print extra details about the operations being performed.</p>
</dd>
<dt><strong><a name="rand_files_writerand_file" class="item"><strong>-rand</strong> <em>files</em>, <strong>-writerand</strong> <em>file</em></a></strong></dt>
<dd>
<p>See <em>openssl(1)/Random State Options</em> for details.</p>
</dd>
<dt><strong><a name="engine_id" class="item"><strong>-engine</strong> <em>id</em></a></strong></dt>
<dd>
<p>See <em>openssl(1)/Engine Options</em>.</p>
</dd>
<dt><strong><a name="numbits" class="item"><em>numbits</em></a></strong></dt>
<dd>
<p>This option specifies that a parameter set should be generated of size
<em>numbits</em>. It must be the last option. If this option is included then
the input file (if any) is ignored.</p>
</dd>
</dl>
<p>
</p>
<hr />
<h1><a name="see_also">SEE ALSO</a></h1>
<p><em>openssl(1)</em>,
<em>openssl-pkeyparam(1)</em>,
<em>openssl-gendsa(1)</em>,
<em>openssl-dsa(1)</em>,
<em>openssl-genrsa(1)</em>,
<em>openssl-rsa(1)</em></p>
<p>
</p>
<hr />
<h1><a name="history">HISTORY</a></h1>
<p>This command was deprecated in OpenSSL 3.0.</p>
<p>
</p>
<hr />
<h1><a name="copyright">COPYRIGHT</a></h1>
<p>Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.</p>
<p>Licensed under the Apache License 2.0 (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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