Revisiting Approximate Polynomial Common Divisor Problem and Noisy Multipolynomial Reconstruction

摘要

In this paper, we present a polynomial lattice method to solve the approximate polynomial common divisor problem. This problem is the polynomial version of the well known approximate integer common divisor problem introduced by Howgrave-Graham (Calc 2001). Our idea can be applied directly to solve the noisy multipolynomial reconstruction problem in the field of error-correcting codes. Compared to the method proposed by Devet, Goldberg and Heninger in USENIX 2012, our approach is faster.