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Paper 2004/262

Universal Forgeability of a Forward-Secure Blind Signature Scheme Proposed by Duc et al.

Lihua Liu and Zhengjun Cao

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.

Metadata
Available format(s)
PDF PS
Category
Cryptographic protocols
Publication info
Published elsewhere. Unknown where it was published
Keywords
Blind signatureUniversal forgeability.
Contact author(s)
zjcamss @ hotmail com
History
2004-10-14: received
Short URL
https://ia.cr/2004/262
License
Creative Commons Attribution
CC BY
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