So I'm looking for a minimum cost transformation with _only_ the
following characteristic:
Given a set of m input bits X, produce a set of n output bits Y such
that knowledge of some subset of X and Y gives a minimum knowledge of
the remainder (of Y if that makes it simple, but of X would be
I recently saw a news story about a new kind of fiber optic cable from
Corning -- it has a much smaller bending radius. (See
http://money.cnn.com/magazines/fortune/fortune_archive/2007/08/06/100141306/index.htm?postversion=2007072303
and
Steven M. Bellovin wrote:
Does that mean that the new fiber is less tappable?
No change, notwithstanding anecdotal references on fiber bending
as used for tapping.
Tapping a fiber can be done without much notice by matching the
index of refraction outside the outer fiber layer, after abrasion
