Cryptanalysis on 'An efficient identity-based proxy signcryption using lattice'

Zi-Yuan Liu; Yi-Fan Tseng; Raylin Tso

Paper 2021/359

Cryptanalysis on 'An efficient identity-based proxy signcryption using lattice'

Zi-Yuan Liu, Yi-Fan Tseng, and Raylin Tso

Abstract

In this note, we conduct a cryptanalysis of the paper published by Zhu et al. on Future Generation Computer Systems in 2021. We demonstrate that their quantum-resistant identity-based proxy signcryption scheme cannot achieve the confidentiality as they claimed.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint. MINOR revision.
Keywords: Cryptanalysis Identity-based Proxy signcryption Lattice-based cryptosystem
Contact author(s): zyliu @ cs nccu eud tw
History: 2021-03-18: received
Short URL: https://ia.cr/2021/359
License: CC BY

BibTeX

@misc{cryptoeprint:2021/359,
      author = {Zi-Yuan Liu and Yi-Fan Tseng and Raylin Tso},
      title = {Cryptanalysis on 'An efficient identity-based proxy signcryption using lattice'},
      howpublished = {Cryptology {ePrint} Archive, Paper 2021/359},
      year = {2021},
      url = {https://eprint.iacr.org/2021/359}
}