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Paper: Security Weaknesses in Two Certificateless Signcryption Schemes

Authors:
S.Sharmila Deva Selvi
S.Sree Vivek
C.Pandu Rangan
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URL: http://eprint.iacr.org/2010/092
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Abstract: Recently, a certificateless signcryption scheme in the standard model was proposed by Liu et al. in \cite{LiuHZM10}. Another certificateless signcryption scheme in the standard model was proposed by Xie et al. in \cite{WZ09}. Here, we show that the scheme in \cite{LiuHZM10} and \cite{WZ09} are not secure against Type-I adversary.
BibTeX
@misc{eprint-2010-22993,
  title={Security Weaknesses in Two Certificateless Signcryption  Schemes},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography /},
  url={http://eprint.iacr.org/2010/092},
  note={ sharmioshin@gmail.com, ssreevivek@gmail.com 14660 received 20 Feb 2010},
  author={S.Sharmila Deva Selvi and S.Sree Vivek and C.Pandu Rangan},
  year=2010
}