Paper 2026/1233

Implementation of Learning with Errors in Non-Commuting Multiplicative Groups

Aleksejus Mihalkovich, Kaunas University of Technology
Lina Dindiene, Kaunas University of Technology
Eligijus Sakalauskas, Kaunas University of Technology
Abstract

In this paper, we demonstrate a way to generalize learning with errors (LWE) to the family of so-called modular-maximal cyclic groups which are non-commuting. Since the group $\mathbb{M}_{2^t}$ has two cycles of maximal multiplicative order, we use this fact to construct an accurate criterion for restoring the message bit with overwhelming probability. Furthermore, we implement the original idea by O. Regev in the considered group to gain benefits from the non-commutativity of $\mathbb{M}_{2^t}$. Also we prove that using this approach we can achieve a level of security comparable to the original idea.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Published elsewhere. Minor revision. https://arxiv.org/pdf/2509.11237
Keywords
Learning with errorsMatrix power functionPublic key encryptionPost-quantum cryptography.
Contact author(s)
aleksejus michalkovic @ ktu lt
lina dindiene @ ktu lt
eligijus sakalauskas @ ktu lt
History
2026-06-11: approved
2026-06-10: received
See all versions
Short URL
https://ia.cr/2026/1233
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2026/1233,
      author = {Aleksejus Mihalkovich and Lina Dindiene and Eligijus Sakalauskas},
      title = {Implementation of Learning with Errors in Non-Commuting Multiplicative Groups},
      howpublished = {Cryptology {ePrint} Archive, Paper 2026/1233},
      year = {2026},
      url = {https://eprint.iacr.org/2026/1233}
}
Note: In order to protect the privacy of readers, eprint.iacr.org does not use cookies or embedded third party content.