hardware RNG

[Eugen Leitl]

On Tue, Sep 10, 2013 at 12:13:32AM -0700, Bill Stewart wrote:

> The other set of security people who want a large quantity of really
> good random numbers are people who use one-time pads.  Most of them
> are either hobbyists (who can wait), or actually
> military/spies/anti-government activists (who are going to ship keys
> around by courier, which is slow, so they should be willing to
> generate them in advance), or paranoids (who don't trust public-key
> crypto, or who don't trust their hardware not to have backdoors, so
> they've got lots of challenges.)  Using OTPs in a professional
> environment is operationally expensive; you should be willing to
> spend money on hardware if you're doing it.

Many cheap embeddes have hardware RNGs -- e.g. ALIX (Geode),
which can take e.g. HiFn 7955 on a mini-PCI, plus mixing in
some entropy from e.g. an USB device is not that expensive.
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