Paper 2020/873 Original: eprint.iacr.org/2020/873 ↗
Post-Quantum Group Key Agreement Scheme
Abstract
Progress in quantum technologies forces the development of new cryptographic primitives that are resistant to attacks of an adversary with a quantum computer. A large number of key establishment schemes have been proposed for two participants, but the area of group post-quantum key establishment schemes has not been studied a lot. Not so long ago, an isogeny-based key agreement scheme was proposed for three participants, based on a gradual increase in the degree of the key. We propose another principle for establishing a key for a group of participants using a tree-structure. The proposed key establishment scheme for four participants uses isogeny of elliptic curves as a mathematical tool.
Metadata
- Available format(s)
PDF- Category
- Cryptographic protocols
- Publication info
- Preprint.
- History
- 2020-07-12: last updated
- 2020-07-12: published
- Short URL
- https://ia.cr/2020/873
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2020/873,
author = {Julia Bobrysheva and Sergey Zapechnikov},
title = {Post-Quantum Group Key Agreement Scheme},
howpublished = {Cryptology {ePrint} Archive, Paper 2020/873},
year = {2020},
url = {https://eprint.iacr.org/2020/873}
}