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<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>pkeyparam</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:root@localhost" /> </head> <body> <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-pkeyparam, pkeyparam - public key algorithm parameter processing tool</p> <h1 id="SYNOPSIS">SYNOPSIS</h1> <p><b>openssl</b> <b>pkeyparam</b> [<b>-help</b>] [<b>-in filename</b>] [<b>-out filename</b>] [<b>-text</b>] [<b>-noout</b>] [<b>-engine id</b>] [<b>-check</b>]</p> <h1 id="DESCRIPTION">DESCRIPTION</h1> <p>The <b>pkeyparam</b> command processes public key algorithm parameters. They can be checked for correctness and their components printed out.</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="in-filename"><b>-in filename</b></dt> <dd> <p>This specifies the input filename to read parameters from or standard input if this option is not specified.</p> </dd> <dt id="out-filename"><b>-out filename</b></dt> <dd> <p>This specifies the output filename to write parameters to or standard output if this option is not specified.</p> </dd> <dt id="text"><b>-text</b></dt> <dd> <p>Prints out the parameters in plain text in addition to the encoded version.</p> </dd> <dt id="noout"><b>-noout</b></dt> <dd> <p>Do not output the encoded version of the parameters.</p> </dd> <dt id="engine-id"><b>-engine id</b></dt> <dd> <p>Specifying an engine (by its unique <b>id</b> string) will cause <b>pkeyparam</b> 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.</p> </dd> <dt id="check"><b>-check</b></dt> <dd> <p>This option checks the correctness of parameters.</p> </dd> </dl> <h1 id="EXAMPLES">EXAMPLES</h1> <p>Print out text version of parameters:</p> <pre><code> openssl pkeyparam -in param.pem -text</code></pre> <h1 id="NOTES">NOTES</h1> <p>There are no <b>-inform</b> or <b>-outform</b> options for this command because only PEM format is supported because the key type is determined by the PEM headers.</p> <h1 id="SEE-ALSO">SEE ALSO</h1> <p><a href="../man1/genpkey.html">genpkey(1)</a>, <a href="../man1/rsa.html">rsa(1)</a>, <a href="../man1/pkcs8.html">pkcs8(1)</a>, <a href="../man1/dsa.html">dsa(1)</a>, <a href="../man1/genrsa.html">genrsa(1)</a>, <a href="../man1/gendsa.html">gendsa(1)</a></p> <h1 id="COPYRIGHT">COPYRIGHT</h1> <p>Copyright 2006-2019 The OpenSSL Project Authors. All Rights Reserved.</p> <p>Licensed under the OpenSSL license (the "License"). 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> </body> </html>