Paper 2025/755
A Note on "CB-DA: Lightweight and Escrow-Free Certificate-Based Data Aggregation for Smart Grid"
Abstract
We show that the data aggregation scheme [IEEE TDSC, 2023, 20(3), 2011-2024] is flawed, because the signer only signs a part of data, not the whole data. An adversary can replace the unsigned component to cheat the verifier. To frustrate this attack, all components of the target data should be concatenated together and then be hashed and signed, so as to ensure that the signature verification can prove the whole message integrity.
Metadata
- Available format(s)
-
PDF
- Category
- Attacks and cryptanalysis
- Publication info
- Preprint.
- Keywords
- Data aggregationsignaturemessage integritysigning algorithmverification algorithm
- Contact author(s)
- liulh @ shmtu edu cn
- History
- 2025-04-30: approved
- 2025-04-28: received
- See all versions
- Short URL
- https://ia.cr/2025/755
- License
-
CC0
BibTeX
@misc{cryptoeprint:2025/755,
author = {Zhengjun Cao and Lihua Liu},
title = {A Note on "{CB}-{DA}: Lightweight and Escrow-Free Certificate-Based Data Aggregation for Smart Grid"},
howpublished = {Cryptology {ePrint} Archive, Paper 2025/755},
year = {2025},
url = {https://eprint.iacr.org/2025/755}
}
