### Cryptanalysis of One Fair E-cash System

LiHua Liu and Zhengjun Cao

##### 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.

##### Metadata
Available format(s)
-- withdrawn --
Category
Cryptographic protocols
Publication info
Published elsewhere. Unknown where it was published
Keywords
Group signatureforgeability.
Contact author(s)
zjcamss @ hotmail com
History
2005-04-05: withdrawn
2005-02-26: received
See all versions
Short URL
https://ia.cr/2005/062
License

CC BY
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