of the derived key. This field is required.</p>

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

<p>Filename to output to, or standard output by default.</p>

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

<p>Output the derived key in binary form. Uses hexadecimal text format if not specified.</p>

</dd>
<dt id="cipher-name"><b>-cipher</b> <i>name</i></dt>
<dd>

<p>Specify the cipher to be used by the KDF. Not all KDFs require a cipher and it is an error to use this option in such cases.