Paper 2023/1296
A note on ``blockchain-assisted authentication and key agreement scheme for fog-based smart grid''
Abstract
We show that the scheme [Clust. Comput. 25(1): 451-468, 2022] fails to keep anonymity, not as claimed. The scheme simply acknowledges that user anonymity is equivalent to protecting the target user's identity against exposure, while its long-term pseudo-identity can be exposed. We want to clarify that the true anonymity means that an adversary cannot attribute different sessions to different target users, even though the adversary cannot recover the true identifier from the long-term pseudo-identifier. We also clarify some misunderstandings in the scheme.
Metadata
- Available format(s)
-
PDF
- Category
- Attacks and cryptanalysis
- Publication info
- Preprint.
- Keywords
- AuthenticationKey agreementFog-based smart gridAnonymityPublic ledger
- Contact author(s)
- liulh @ shmtu edu cn
- History
- 2023-09-02: approved
- 2023-08-31: received
- See all versions
- Short URL
- https://ia.cr/2023/1296
- License
-
CC0
BibTeX
@misc{cryptoeprint:2023/1296,
author = {Zhengjun Cao and Lihua Liu},
title = {A note on ``blockchain-assisted authentication and key agreement scheme for fog-based smart grid''},
howpublished = {Cryptology {ePrint} Archive, Paper 2023/1296},
year = {2023},
url = {https://eprint.iacr.org/2023/1296}
}
