> Keep the meta-root private key under very very high security (my
> recommendation was to embed it in the structural members of a
> skyscraper, such that anyone who tried to get it -- the legitimate
> owner or anyone else -- would have to make a lot of noise for an
> extended period, in a very public place).
You need to see more stage magic. The theft or copying would be done
before the steel was welded. To be fair, this bald assertion is
applicable to many schemes in which the complete secret exists
somewhere before it is divided or hidden.
Matt Crawford