Perry E. Metzger wrote:
> An idea from some folks at MIT apparently where a physical token
> consisting of a bunch of spheres embedded in epoxy is used as an
> access device by shining a laser through it.
I can't dig up the memory, but I think I heard of a similar idea --
random structure in transparent solid, difficult to copy -- used in
some kind of tag or seal for nuclear security. Can anyone remind me
what this might have been?
--
Eli Brandt | [EMAIL PROTECTED] | http://www.cs.cmu.edu/~eli/
(finished Ph.D., woohoo; looking for good work in the Seattle area)
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