On the Low Weight Polynomial Multiple Problem

Fuente: arXiv
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Autori principali: Ţiplea, Ferucio Laurenţiu, Lăzărescu, Simona-Maria
Natura: Preprint
Pubblicazione: 2024
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author Ţiplea, Ferucio Laurenţiu
Lăzărescu, Simona-Maria
author_facet Ţiplea, Ferucio Laurenţiu
Lăzărescu, Simona-Maria
contents Finding a low-weight multiple (LWPM) of a given polynomial is very useful in the cryptanalysis of stream ciphers and arithmetic in finite fields. There is no known deterministic polynomial time complexity algorithm for solving this problem, and the most efficient algorithms are based on a time/memory trade-off. The widespread perception is that this problem is difficult. In this paper, we establish a relationship between the LWPM problem and the MAX-SAT problem of determining an assignment that maximizes the number of valid clauses of a system of affine Boolean clauses. This relationship shows that any algorithm that can compute the optimum of a MAX-SAT instance can also compute the optimum of an equivalent LWPM instance. It also confirms the perception that the LWPM problem is difficult.
format Preprint
id arxiv_https___arxiv_org_abs_2410_10224
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On the Low Weight Polynomial Multiple Problem
Ţiplea, Ferucio Laurenţiu
Lăzărescu, Simona-Maria
Computational Complexity
68Q15, 68Q25, 14G50, 94A60
Finding a low-weight multiple (LWPM) of a given polynomial is very useful in the cryptanalysis of stream ciphers and arithmetic in finite fields. There is no known deterministic polynomial time complexity algorithm for solving this problem, and the most efficient algorithms are based on a time/memory trade-off. The widespread perception is that this problem is difficult. In this paper, we establish a relationship between the LWPM problem and the MAX-SAT problem of determining an assignment that maximizes the number of valid clauses of a system of affine Boolean clauses. This relationship shows that any algorithm that can compute the optimum of a MAX-SAT instance can also compute the optimum of an equivalent LWPM instance. It also confirms the perception that the LWPM problem is difficult.
title On the Low Weight Polynomial Multiple Problem
topic Computational Complexity
68Q15, 68Q25, 14G50, 94A60
url https://arxiv.org/abs/2410.10224