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30 lines
1.1 KiB
Text
30 lines
1.1 KiB
Text
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The BitBabbler is a hardware-based True Random Number generator
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(TRNG). It is offered in both "White" and "Black" varieties that are
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functionally almost identical apart from throughput and cost. This
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package installs the software necessary to control and perform basic
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health checks on connected BB devices.
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After installing the package, "groupadd bit-babbler", or adjust
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/etc/udev/rules.d/90-bit-babbler.rules to use an existing group (e.g.,
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wheel or adm) that will have permissions for the BB devices in your
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system.
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Typically, you'll probably want your BitBabbler device(s) to start
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feeding entropy to the kernel at boot. Include these lines in
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/etc/rc.d/rc.local:
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# Start BitBabbler TRNG.
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if [ -x /etc/rc.d/rc.seedd ]; then
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. /etc/rc.d/rc.seedd start
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fi
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It is also a good idea to stop your BB device from feeding entropy to
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the kernel before capturing the random number seed on shutdown/reboot.
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Put these lines in /etc/rc.d/rc.local_shutdown, which you'll need to
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create if it doesn't already exist:
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# Stop BitBabbler TRNG.
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if [ -x /etc/rc.d/rc.seedd ]; then
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. /etc/rc.d/rc.seedd stop
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fi
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