## CryptoDB

### Paper: Cryptanalysis of One Fair E-cash System

Authors: LiHua Liu Zhengjun Cao URL: http://eprint.iacr.org/2005/062 Search ePrint Search Google One fair e-cash system was proposed in [1]. In this paper, we show that the system is insecure. Besides, we point out that there are two drawbacks. One is that those integer intervals for $s_i (i=1, \cdots, 9)$ are unappropriate. The other is that the datum $s_3$ in signature data is redundant. Moreover, we give a minute description of the technique to shun the challenge in the scheme. We think the method is a little interesting.
##### BibTeX
@misc{eprint-2005-12399,
title={Cryptanalysis  of One Fair E-cash System},
booktitle={IACR Eprint archive},
keywords={cryptographic protocols / Group signature,  forgeability.},
url={http://eprint.iacr.org/2005/062},
note={ zjcamss@hotmail.com 12878 received 26 Feb 2005, withdrawn 5 Apr 2005},
author={LiHua Liu and Zhengjun Cao},
year=2005
}