Cryptanalysis and Improvement of an Efficient CCA Secure PKE Scheme

Xu An Wang; Liqiang Wu; Xiaoyuan Yang; Huaqun Wang

Paper 2011/224 Original: eprint.iacr.org/2011/224 ↗

Cryptanalysis and Improvement of an Efficient CCA Secure PKE Scheme

Xu An Wang

Liqiang Wu

Xiaoyuan Yang

Huaqun Wang

Abstract

Recently in Chinese Journal of Computers, Kang et al. [12] proposed an efficient CCA secure public key encryption (PKE) scheme, and claimed that it is more efficient in the public/private keys than the famous CS98 and BMW05 CCA secure public key encryption scheme. However, in this paper we will show that their proposal is not secure at all. Furthermore, we improve their scheme to be a secure one and prove its security.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint.
History: 2011-05-11: last updated; 2011-05-11: published
Short URL: https://ia.cr/2011/224
License: https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2011/224,
      author = {Xu An Wang and Liqiang Wu and Xiaoyuan Yang and Huaqun Wang},
      title = {Cryptanalysis and Improvement of an Efficient CCA Secure PKE Scheme},
      howpublished = {Cryptology {ePrint} Archive, Paper 2011/224},
      year = {2011},
      url = {https://eprint.iacr.org/2011/224}
}