181 lines
6.0 KiB
HTML
181 lines
6.0 KiB
HTML
<?xml version="1.0" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>dsaparam</title>
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<meta http-equiv="content-type" content="text/html; charset=utf-8" />
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<link rev="made" href="mailto:root@localhost" />
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</head>
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<body style="background-color: white">
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<!-- INDEX BEGIN -->
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<div name="index">
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<p><a name="__index__"></a></p>
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<ul>
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<li><a href="#name">NAME</a></li>
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<li><a href="#synopsis">SYNOPSIS</a></li>
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<li><a href="#description">DESCRIPTION</a></li>
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<li><a href="#options">OPTIONS</a></li>
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<li><a href="#notes">NOTES</a></li>
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<li><a href="#see_also">SEE ALSO</a></li>
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<li><a href="#copyright">COPYRIGHT</a></li>
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</ul>
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<hr name="index" />
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</div>
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<!-- INDEX END -->
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<p>
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</p>
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<hr />
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<h1><a name="name">NAME</a></h1>
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<p>openssl-dsaparam,
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dsaparam - DSA parameter manipulation and generation</p>
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<p>
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</p>
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<hr />
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<h1><a name="synopsis">SYNOPSIS</a></h1>
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<p><strong>openssl dsaparam</strong>
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[<strong>-help</strong>]
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[<strong>-inform DER|PEM</strong>]
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[<strong>-outform DER|PEM</strong>]
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[<strong>-in filename</strong>]
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[<strong>-out filename</strong>]
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[<strong>-noout</strong>]
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[<strong>-text</strong>]
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[<strong>-C</strong>]
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[<strong>-rand file...</strong>]
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[<strong>-writerand file</strong>]
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[<strong>-genkey</strong>]
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[<strong>-engine id</strong>]
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[<strong>numbits</strong>]</p>
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<p>
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</p>
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<hr />
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<h1><a name="description">DESCRIPTION</a></h1>
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<p>This command is used to manipulate or generate DSA parameter files.</p>
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<p>
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</p>
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<hr />
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<h1><a name="options">OPTIONS</a></h1>
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<dl>
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<dt><strong><a name="help" class="item"><strong>-help</strong></a></strong></dt>
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<dd>
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<p>Print out a usage message.</p>
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</dd>
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<dt><strong><a name="inform_der_pem" class="item"><strong>-inform DER|PEM</strong></a></strong></dt>
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<dd>
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<p>This specifies the input format. The <strong>DER</strong> option uses an ASN1 DER encoded
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form compatible with <a href="http://www.ietf.org/rfc/rfc2459.txt" class="rfc">RFC2459</a> (PKIX) DSS-Parms that is a SEQUENCE consisting
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of p, q and g respectively. The PEM form is the default format: it consists
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of the <strong>DER</strong> format base64 encoded with additional header and footer lines.</p>
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</dd>
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<dt><strong><a name="outform_der_pem" class="item"><strong>-outform DER|PEM</strong></a></strong></dt>
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<dd>
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<p>This specifies the output format, the options have the same meaning and default
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as the <strong>-inform</strong> option.</p>
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</dd>
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<dt><strong><a name="in_filename" class="item"><strong>-in filename</strong></a></strong></dt>
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<dd>
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<p>This specifies the input filename to read parameters from or standard input if
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this option is not specified. If the <strong>numbits</strong> parameter is included then
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this option will be ignored.</p>
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</dd>
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<dt><strong><a name="out_filename" class="item"><strong>-out filename</strong></a></strong></dt>
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<dd>
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<p>This specifies the output filename parameters to. Standard output is used
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if this option is not present. The output filename should <strong>not</strong> be the same
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as the input filename.</p>
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</dd>
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<dt><strong><a name="noout" class="item"><strong>-noout</strong></a></strong></dt>
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<dd>
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<p>This option inhibits the output of the encoded version of the parameters.</p>
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</dd>
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<dt><strong><a name="text" class="item"><strong>-text</strong></a></strong></dt>
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<dd>
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<p>This option prints out the DSA parameters in human readable form.</p>
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</dd>
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<dt><strong><a name="c" class="item"><strong>-C</strong></a></strong></dt>
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<dd>
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<p>This option converts the parameters into C code. The parameters can then
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be loaded by calling the <code>get_dsaXXX()</code> function.</p>
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</dd>
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<dt><strong><a name="genkey" class="item"><strong>-genkey</strong></a></strong></dt>
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<dd>
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<p>This option will generate a DSA either using the specified or generated
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parameters.</p>
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</dd>
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<dt><strong><a name="rand_file" class="item"><strong>-rand file...</strong></a></strong></dt>
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<dd>
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<p>A file or files containing random data used to seed the random number
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generator.
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Multiple files can be specified separated by an OS-dependent character.
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The separator is <strong>;</strong> for MS-Windows, <strong>,</strong> for OpenVMS, and <strong>:</strong> for
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all others.</p>
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</dd>
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<dt><strong><a name="writerand_file" class="item">[<strong>-writerand file</strong>]</a></strong></dt>
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<dd>
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<p>Writes random data to the specified <em>file</em> upon exit.
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This can be used with a subsequent <strong>-rand</strong> flag.</p>
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</dd>
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<dt><strong><a name="numbits" class="item"><strong>numbits</strong></a></strong></dt>
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<dd>
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<p>This option specifies that a parameter set should be generated of size
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<strong>numbits</strong>. It must be the last option. If this option is included then
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the input file (if any) is ignored.</p>
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</dd>
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<dt><strong><a name="engine_id" class="item"><strong>-engine id</strong></a></strong></dt>
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<dd>
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<p>Specifying an engine (by its unique <strong>id</strong> string) will cause <strong>dsaparam</strong>
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to attempt to obtain a functional reference to the specified engine,
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thus initialising it if needed. The engine will then be set as the default
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for all available algorithms.</p>
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</dd>
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</dl>
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<p>
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</p>
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<hr />
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<h1><a name="notes">NOTES</a></h1>
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<p>PEM format DSA parameters use the header and footer lines:</p>
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<pre>
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-----BEGIN DSA PARAMETERS-----
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-----END DSA PARAMETERS-----</pre>
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<p>DSA parameter generation is a slow process and as a result the same set of
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DSA parameters is often used to generate several distinct keys.</p>
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<p>
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</p>
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<hr />
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<h1><a name="see_also">SEE ALSO</a></h1>
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<p><em>gendsa(1)</em>, <em>dsa(1)</em>, <em>genrsa(1)</em>,
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<em>rsa(1)</em></p>
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<p>
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</p>
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<hr />
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<h1><a name="copyright">COPYRIGHT</a></h1>
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<p>Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.</p>
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<p>Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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<a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p>
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</body>
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</html>
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