On Thu, Oct 17, 2013 at 12:56:01PM -0400, grarpamp wrote:
Problem is, apparently no one is solving it, so round and round it goes... physical entropy, rdrand, reboot state, prng code. I'd guess that with good sources, today's prng code is sufficiently strong and at least some unix systems do save state across reboot. Now if someone would just sell a completely open discrete logic serial port hw entropy source for under $50... that would end
There's an ARM system in there: http://www.entropykey.co.uk/ but in principle you can resurrect something like that, or wait until the company sees fit to sell that product again.
a lot of the talk. Even with a more costly radiation source rather
You don't need radiation. 12 USD USB SDR can sample 1.5 Msamples/s at 8 bit, and http://www.maximintegrated.com/app-notes/index.mvp/id/3469 is as simple as it gets, and is amplifies effectively quantum noise. I'm not sure how complex http://www.realtek.com.tw/products/productsView.aspx?Langid=1&PFid=35&Level=4&Conn=3&ProdID=257 is, but you can certainly decap a representative sample from each lot to validate it.
than other phenomena you'd still likely make good profit in quantity from China at that price. Sell other/cheaper/slower phenomena for a little less and make even more profit. Seal some up in a pretty wrapper and call it the corporate version for $1500.
Seems like a decent business idea.