freebsd-nq/share/man/man4/rndtest.4

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.\"-
.\" Copyright (c) 2003 Sam Leffler, Errno Consulting
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.Dd March 11, 2003
.Dt RNDTEST 4
.Os
.Sh NAME
.Nm rndtest
.Nd FIPS 140-2 random number generator test monitor
.Sh SYNOPSIS
.Cd "device rndtest"
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.Sh DESCRIPTION
The
.Nm
driver
.Dq "hooks up"
to hardware crypto devices to monitor the
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entropy data passed to the
.Xr random 4
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
.Dq "good data"
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is received from the device.
Failures are optionally reported on the console.
.Sh SEE ALSO
.Xr crypto 4 ,
.Xr hifn 4 ,
.Xr random 4 ,
.Xr ubsec 4 ,
.Xr crypto 9
.Sh HISTORY
The idea for this and the original code came from
.An "Jason L. Wright" .
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The
.Nm
device driver first appeared in
.Fx 5.0 .
.Sh BUGS
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
.Xr random 4
subsystem where it can be used applied to devices that claim to supply
.Dq "pure entropy" .