Paper 2026/445
Implementation of a post-quantum hybrid group key exchange protocol
, Slovak University of Technology in Bratislava, Slovak University of Technology in BratislavaAbstract
Post-quantum cryptography focuses on research of cryptographic primitives, including public key encryption and signatures, that can resist the attacks mounted by an adversary with an access to a quantum computer. An alternative is to employ quantum cryptography to protect communication links by employing principles of quantum physics to protect security of the key exchange. Recently, a group key establishment protocol that combines these approaches in a secure way was presented by Steinwandt and Gonzales Vasco. We have successfully imple- mented and employed this protocol in a prototype application. In this article we describe the overall architecture and specific details of the implementation that can be of interest for scientific community. We conclude with a discussion of specific challenges, options and open problems that can accompany similar imple- mentation task.
Metadata
- Available format(s)
-
PDF
- Category
- Implementation
- Publication info
- Preprint.
- Keywords
- Post-quantum cryptographygroup key ex- changequantum cryptography
- Contact author(s)
- pavol zajac @ stuba sk
- History
- 2026-03-05: approved
- 2026-03-04: received
- See all versions
- Short URL
- https://ia.cr/2026/445
- License
-
CC BY-NC-SA
BibTeX
@misc{cryptoeprint:2026/445,
author = {Tomáš Fabšič and Samuel Klement and Zoltán Raffay and Pavol Zajac},
title = {Implementation of a post-quantum hybrid group key exchange protocol},
howpublished = {Cryptology {ePrint} Archive, Paper 2026/445},
year = {2026},
url = {https://eprint.iacr.org/2026/445}
}
