Uranium Ore for a random number generator (for strong SSH key generation). This is from the Mi Vida mines in Utah. Very hot little rock!
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Yes it is. I had ordered it a while back but it took a long time to mail since it isn't allowed on planes.
This paper gives a couple of techniques on how to create random data from radioactive decay (great paper!): citeseerx.ist.psu.edu/viewdoc/downlo
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