Shamir secret sharing and information theoretic security
sbg at acw.com
sbg at acw.com
Mon Feb 23 13:05:47 EST 2009
Is it possible that the amount of information that the knowledge of a
sub-threshold number of Shamir fragments leaks in finite precision setting
depends on the finite precision implementation?
For example, if you know 2 of a 3 of 5 splitting and you also know that
the finite precision setting in which the fragments will be used is IEEE
32-bit floating point or GNU bignum can you narrow down the search for the
key relative to knowing no fragments and nothing about the finite
precision implementation?
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