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Old 11-20-2007, 04:07 PM   #1
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Entropy Generator for Debian Etch

Looking for a device that'll generate significant amounts of entropy for the kernel.

Do the following processors have a hardware RNG?

Intel Core 2 Quad Q6600
AMD Turion 64 ML-34

If so, that'll do just nicely. If not, what can I use to either utilize existing hardware to generate entropy? What devices exist specifically to generate entropy?
Old 11-20-2007, 04:41 PM   #2
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Have you looked at the Wikipedia article?

I think if Intel/AMD included such a thing it would be publicised more. VIA CPUs have hardware rng and they feature it in their marketing. Anyway, the article discusses some alternatives.
Old 11-21-2007, 07:37 AM   #3
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I do know that both Intel and AMD implement HWRNGs in their chipsets (not processors, sorry, didn't ask the right question - it was very late for me.)

Meant to ask, what chipsets for those CPUs implement HWRNGs.

As for the Wikipedia article, I've already read it. I'm not looking for concepts - I'm looking for products. Something I can make, something I already have, or something I can buy.
Old 11-21-2007, 12:08 PM   #4
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I don’t know about AMD chipsets which have a tRNG, but the Intel ones are not made anymore (at least not that I know of).
Originally Posted by Asymmetry View Post
Something I can make
Well, if you are up to it, here is a small one which uses noise from the PN junction of a transistor. Here is the same circuit with a PIC driver which takes the random TTL bits and makes them available in RS232-readable form (i.e., suitable for use with a “serial port” or a USB-RS232 cable). Of course it is pretty easy to use AVR instead of PIC if that’s what you have lying around.

There are plenty other such circuits floating around on the intarwebs.


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