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Universal Forgeability of a Forward-Secure Blind Signature Scheme Proposed by Duc et al
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Abstract: | Duc et al. proposed a forward-secure blind signature scheme in [1]. They claimed that the scheme is constructed from the provably secure Okamoto-Guilou-Quisquater blind signature scheme. But we recently found that their scheme is insecure. In the paper, we show the scheme is universally forgeable by a simple and direct attack. |
BibTeX
@misc{eprint-2004-12230, title={Universal Forgeability of a Forward-Secure Blind Signature Scheme Proposed by Duc et al}, booktitle={IACR Eprint archive}, keywords={cryptographic protocols / Blind signature, Universal forgeability.}, url={http://eprint.iacr.org/2004/262}, note={ zjcamss@hotmail.com 12704 received 13 Oct 2004}, author={Lihua Liu and Zhengjun Cao}, year=2004 }