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+<table class="head">
+ <tr>
+ <td class="head-ltitle">RNDTEST(4)</td>
+ <td class="head-vol">Device Drivers Manual</td>
+ <td class="head-rtitle">RNDTEST(4)</td>
+ </tr>
+</table>
+<div class="manual-text">
+<section class="Sh">
+<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
+<p class="Pp"><code class="Nm">rndtest</code> &#x2014; <span class="Nd">FIPS
+ 140-2 random number generator test monitor</span></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
+<p class="Pp"><code class="Cd">device rndtest</code></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<p class="Pp">The <code class="Nm">rndtest</code> driver &#x201C;hooks
+ up&#x201D; to hardware crypto devices to monitor the entropy data passed to
+ the <a class="Xr">random(4)</a> subsystem. This data is periodically tested
+ for FIPS 140-2 compliance and statistics are collected. If the harvested
+ entropy fails any of the FIPS test suite, then it is discarded and testing
+ is continuously applied until &#x201C;good data&#x201D; is received from the
+ device. Failures are optionally reported on the console.</p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
+ ALSO</a></h1>
+<p class="Pp"><a class="Xr">crypto(4)</a>, <a class="Xr">random(4)</a>,
+ <a class="Xr">safe(4)</a>, <a class="Xr">crypto(9)</a></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
+<p class="Pp">The idea for this and the original code came from
+ <span class="An">Jason L. Wright</span>. The <code class="Nm">rndtest</code>
+ device driver first appeared in <span class="Ux">FreeBSD 5.0</span>.</p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1>
+<p class="Pp">Crypto device drivers must be compiled specially to make use of
+ this driver; this should not be necessary. This feature might better be
+ integrated into the <a class="Xr">random(4)</a> subsystem where it can be
+ applied to devices that claim to supply &#x201C;pure entropy&#x201D;.</p>
+</section>
+</div>
+<table class="foot">
+ <tr>
+ <td class="foot-date">May 11, 2020</td>
+ <td class="foot-os">FreeBSD 15.0</td>
+ </tr>
+</table>