Paper 2011/224

Cryptanalysis and Improvement of an Efficient CCA Secure PKE Scheme

Xu An Wang, Liqiang Wu, Xiaoyuan Yang, and 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
Published elsewhere. Unknown where it was published
Contact author(s)
wangxahq @ yahoo com cn
History
2011-05-11: received
Short URL
https://ia.cr/2011/224
License
Creative Commons Attribution
CC BY

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}
}
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