A Note on ``A Time-Sensitive Token-Based Anonymous Authentication and Dynamic Group Key Agreement Scheme for Industry 5.0''

Zhengjun Cao; Lihua Liu

Paper 2023/1629

A Note on ``A Time-Sensitive Token-Based Anonymous Authentication and Dynamic Group Key Agreement Scheme for Industry 5.0''

Zhengjun Cao

Lihua Liu

Abstract

We show that the Xu et al.'s authentication and key agreement scheme [IEEE Trans. Ind. Informatics, 18(10), 7118-7127, 2022] is flawed. (1) It confused some operations for bilinear maps and presented some inconsistent computations. (2) It failed to keep anonymity, not as claimed. The adversary can use any device's public key stored in the blockchain to test some verification equations so as to reveal the identity of a target device.

Metadata

Available format(s): PDF
Category: Attacks and cryptanalysis
Publication info: Preprint.
Keywords: Key agreement anonymity authentication blockchain
Contact author(s): caozhj @ shu edu cn
liulh @ shmtu edu cn
History: 2023-10-23: approved; 2023-10-20: received; See all versions
Short URL: https://ia.cr/2023/1629
License: CC0

BibTeX

@misc{cryptoeprint:2023/1629,
      author = {Zhengjun Cao and Lihua Liu},
      title = {A Note on ``A Time-Sensitive Token-Based Anonymous Authentication and Dynamic Group Key Agreement Scheme for Industry 5.0''},
      howpublished = {Cryptology {ePrint} Archive, Paper 2023/1629},
      year = {2023},
      url = {https://eprint.iacr.org/2023/1629}
}