Security Weaknesses in Two Certificateless Signcryption  Schemes

S. Sharmila Deva Selvi; S. Sree Vivek; C. Pandu Rangan

Paper 2010/092 Original: eprint.iacr.org/2010/092 ↗

Security Weaknesses in Two Certificateless Signcryption Schemes

S. Sharmila Deva Selvi

S. Sree Vivek

C. Pandu Rangan

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.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint.
History: 2010-02-22: last updated; 2010-02-22: published
Short URL: https://ia.cr/2010/092
License: https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2010/092,
      author = {S. Sharmila Deva Selvi and S. Sree Vivek and C. Pandu Rangan},
      title = {Security Weaknesses in Two Certificateless Signcryption  Schemes},
      howpublished = {Cryptology {ePrint} Archive, Paper 2010/092},
      year = {2010},
      url = {https://eprint.iacr.org/2010/092}
}