Re:More backwards functions: Unevaluating polynomials
by j2kun on Wednesday September 25, 2013 @06:06PM
(#6447617)
One reason this is interesting is because polynomial interpolation is used for secret sharing, so this method constitutes an "attack" on a poorly implemented polynomial interpolation sharing scheme.
Luckily for crypto, the coefficients used in a properly implemented scheme are so large as to not be vulnerable to such an attack.
Luckily for crypto, the coefficients used in a properly implemented scheme are so large as to not be vulnerable to such an attack.