[Resource Topic] 2007/088: An Algorithm for Finding Small Roots of Multivariate Polynomials over the Integers

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Title:
An Algorithm for Finding Small Roots of Multivariate Polynomials over the Integers

Authors: Domingo Gomez, Jaime Gutierrez, Alvar Ibeas

Abstract:

In this paper we present a new algorithm for finding small roots of a system of multivariate polynomials over the integers based on lattice reduction techniques. Our simpler heuristic method is inspired in algorithms for predicting pseudorandom numbers, and it can be considered as another variant of Coppersmith’s method for finding small solutions of integer bivariate polynomials. We also apply the method to the well known problem of factoring an integer when we know the high-order bits of one of the factors.

ePrint: https://eprint.iacr.org/2007/088

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