Paper 2020/873
Post-Quantum Group Key Agreement Scheme
Julia Bobrysheva and Sergey Zapechnikov
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. MINOR revision.
- Keywords
- group key agreementisogeniespost-quantum scheme
- Contact author(s)
-
julia @ epage ru
svzapechnikov @ mephi ru - History
- 2020-07-12: received
- Short URL
- https://ia.cr/2020/873
- License
-
CC BY
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}
}
