Hard Instances of Discrete Logarithm Problem and Cryptographic Applications

Fuente: arXiv
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Main Authors: Battarbee, Christopher, Darbinyan, Arman, Kahrobaei, Delaram
Format: Preprint
Published: 2025
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_version_ 1866915638668165120
author Battarbee, Christopher
Darbinyan, Arman
Kahrobaei, Delaram
author_facet Battarbee, Christopher
Darbinyan, Arman
Kahrobaei, Delaram
contents Let f be an arbitrary positive integer valued function. The goal of this note is to show that one can construct a finitely generated group in which the discrete log problem is polynomially equivalent to computing the function f. In particular, we provide infinite, but finitely generated groups, in which the discrete logarithm problem is arbitrarily hard. As another application, we construct a family of two-generated groups that have polynomial time word problem and NP-complete discrete log problem. Additionally, using our framework, we propose a generic scheme of cryptographic protocols, which might be of independent interest.
format Preprint
id arxiv_https___arxiv_org_abs_2508_08823
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Hard Instances of Discrete Logarithm Problem and Cryptographic Applications
Battarbee, Christopher
Darbinyan, Arman
Kahrobaei, Delaram
Group Theory
20K15, 94A60, 03D15
Let f be an arbitrary positive integer valued function. The goal of this note is to show that one can construct a finitely generated group in which the discrete log problem is polynomially equivalent to computing the function f. In particular, we provide infinite, but finitely generated groups, in which the discrete logarithm problem is arbitrarily hard. As another application, we construct a family of two-generated groups that have polynomial time word problem and NP-complete discrete log problem. Additionally, using our framework, we propose a generic scheme of cryptographic protocols, which might be of independent interest.
title Hard Instances of Discrete Logarithm Problem and Cryptographic Applications
topic Group Theory
20K15, 94A60, 03D15
url https://arxiv.org/abs/2508.08823