Paper 2025/1461
Hard Instances of Discrete Logarithm Problem and Cryptographic Applications
Abstract
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.
Metadata
- Available format(s)
-
PDF
- Category
- Foundations
- Publication info
- Preprint.
- Keywords
- discrete logarithm probleminfinite groupscomplexity theory
- Contact author(s)
-
kit battarbee @ ed ac uk
a darbinyan @ soton ac uk
delaram kahrobaei @ qc cuny edu - History
- 2025-11-28: revised
- 2025-08-12: received
- See all versions
- Short URL
- https://ia.cr/2025/1461
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2025/1461,
author = {Christopher Battarbee and Arman Darbinyan and Delaram Kahrobaei},
title = {Hard Instances of Discrete Logarithm Problem and Cryptographic Applications},
howpublished = {Cryptology {ePrint} Archive, Paper 2025/1461},
year = {2025},
url = {https://eprint.iacr.org/2025/1461}
}
