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-rw-r--r--electronics/misc.page8
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diff --git a/electronics/misc.page b/electronics/misc.page
index a774608..d092bb5 100644
--- a/electronics/misc.page
+++ b/electronics/misc.page
@@ -12,3 +12,11 @@ actually prevent external discharges or shocks from harming ICs inside. If you
use a shielding bag, you still need to make sure all the materials inside will
not build up a charge.
+Random Number Generators
+----------------------------
+
+- `Wikipedia overview <http://en.wikipedia.org/wiki/Hardware_random_number_generator>`_
+- `Wikipedia comparison of devices <http://en.wikipedia.org/wiki/Comparison_of_hardware_random_number_generators>`_
+- `Entropy Key <http://www.entropykey.co.uk>`_: a $50 USB key using avalanche
+ noise from two P-N junctions; lots of support and features.
+