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Cryptanalysis of One Fair E-cash System
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Abstract: | 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forgeability.}, url={http://eprint.iacr.org/2005/062}, note={ zjcamss@hotmail.com 12878 received 26 Feb 2005, withdrawn 5 Apr 2005}, author={LiHua Liu and Zhengjun Cao}, year=2005 }