system/bit-babbler: Added (Hardware True Random Number generator).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

1 files changed, 29 insertions, 0 deletions

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