Paper 2024/1641 Original: eprint.iacr.org/2024/1641 ↗
Simplification Issues of An Authentication and Key Agreement Scheme for Smart Grid
Abstract
Key agreement and public key encryption are two elementary cryptographic primitives, suitable for different scenarios. But their differences are still not familiar to some researchers. In this note, we show that the Safkhani et al.'s key agreement scheme [Peer-to-Peer Netw. Appl. 15(3), 1595-1616, 2022] is a public key encryption in disguise. We stress that the ultimate use of key agreement is to establish a shared key for some symmetric key encryption. We also present a simplification of the scheme by removing some repetitive computations. To the best of our knowledge, it is the first time to clarify the fundamental differences between the two primitives. The techniques developed in this note will be helpful for the future works on designing such schemes.
Metadata
- Available format(s)
PDF- Category
- Attacks and cryptanalysis
- Publication info
- Preprint.
- History
- 2024-10-12: last updated
- 2024-10-12: published
- Short URL
- https://ia.cr/2024/1641
- License
- https://creativecommons.org/publicdomain/zero/1.0/
BibTeX
@misc{cryptoeprint:2024/1641,
author = {Zhengjun Cao and Lihua Liu},
title = {Simplification Issues of An Authentication and Key Agreement Scheme for Smart Grid},
howpublished = {Cryptology {ePrint} Archive, Paper 2024/1641},
year = {2024},
url = {https://eprint.iacr.org/2024/1641}
}