On security of a certificateless signcryption scheme

Authors

Songqin Miao, Nanjing Normal UniversityFollow
Futai Zhang, Nanjing Normal UniversityFollow
Sujuan Li, Nanjing Normal University
Yi Mu, University of WollongongFollow

RIS ID

76819

Publication Details

Miao, S., Zhang, F., Li, S. & Mu, Y. (2013). On security of a certificateless signcryption scheme. Information Sciences, 232 475-481.

Abstract

It would be interesting if a signcryption scheme in the standard model could be made certificateless. One of the interesting attempts is due to Liu et al. [Z. Liu, Y. Hu, X. Zhang, H. Ma, Certificateless signcryption scheme in the standard model, Information Sciences 180 (3) (2010) 452-464]. In this paper, we provide a cryptanalysis on this scheme by depicting two kinds of subtle public key replacement attacks against it. Our analysis reveals that it does not meet the basic requirements of confidentiality and non-repudiation.