On the Anonymity in "A Practical Lightweight Anonymous Authentication and Key Establishment Scheme for Resource-Asymmetric Smart Environments"

Zhengjun Cao; Lihua Liu

Paper 2025/529

On the Anonymity in "A Practical Lightweight Anonymous Authentication and Key Establishment Scheme for Resource-Asymmetric Smart Environments"

Zhengjun Cao

Lihua Liu

Abstract

We show that the anonymous authentication and key establishment scheme [IEEE TDSC, 20(4), 3535-3545, 2023] fails to keep user anonymity, not as claimed. We also suggest a method to fix it.

Metadata

Available format(s): PDF
Category: Attacks and cryptanalysis
Publication info: Preprint.
Keywords: Mutual authentication Key agreement Rabin cryptosystem User anonymity
Contact author(s): liulh @ shmtu edu cn
History: 2025-03-23: approved; 2025-03-21: received; See all versions
Short URL: https://ia.cr/2025/529
License: CC0

BibTeX

@misc{cryptoeprint:2025/529,
      author = {Zhengjun Cao and Lihua Liu},
      title = {On the Anonymity in "A Practical Lightweight Anonymous Authentication and Key Establishment Scheme for Resource-Asymmetric Smart Environments"},
      howpublished = {Cryptology {ePrint} Archive, Paper 2025/529},
      year = {2025},
      url = {https://eprint.iacr.org/2025/529}
}