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hardware RNG

On Mon, Sep 9, 2013 at 12:32 PM, Juan Garofalo <[email protected]> wrote:
> ...
> Wouldn't it be possible to build a RNG using something like a zener diode and a $2 microcontroller?

there's good discussion of true hardware random number generator
design in "Cryptography Engineering"[0].

obviously getting a stream of biased bits is just the first step in
usable entropy...

0. "Cryptographic Engineering" (2009)
 or https://play.google.com/store/books/details/%C3%87etin_K_Ko%C3%A7_Cryptographic_Engineering?id=nErZY4vYHIoC