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

Lihua Liu; Zhengjun Cao

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 signature Universal forgeability.
Contact author(s): zjcamss @ hotmail com
History: 2004-10-14: received
Short URL: https://ia.cr/2004/262
License: CC BY

BibTeX

@misc{cryptoeprint:2004/262,
      author = {Lihua Liu and Zhengjun Cao},
      title = {Universal Forgeability of a Forward-Secure  Blind Signature Scheme Proposed by   Duc et al.},
      howpublished = {Cryptology ePrint Archive, Paper 2004/262},
      year = {2004},
      note = {\url{https://eprint.iacr.org/2004/262}},
      url = {https://eprint.iacr.org/2004/262}
}