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Paper: New Zero-knowledge Undeniable Signatures - Forgery of Signature Equivalent to Factorisation

Authors:
Wenbo Mao
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URL: http://eprint.iacr.org/2001/011
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Abstract: We propose a new zero-knowledge undeniable signature scheme which is based on the intractability of computing high-order even powers modulo a composite. The new scheme has a number of desirable properties: (i) forgery of a signature (including existential forgery) is proven to be equivalent to factorisation, (ii) perfect zero-knowledge, (iii) efficient protocols for signature verification and non-signature denial: both measured by $O(\log k)$ (multiplications) where $1/k$ bounds the probability of error. For a denial protocol, this performance is unprecedented.
BibTeX
@misc{eprint-2001-11423,
  title={New Zero-knowledge Undeniable Signatures - Forgery of Signature Equivalent to Factorisation},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography / Undeniable signatures, Efficient zero-knowledge protocols},
  url={http://eprint.iacr.org/2001/011},
  note={submitted wm@hplb.hpl.hp.com 11381 received 15 Feb 2001, revised 15 Feb 2001, revised 19 Feb 2001, revised 28 Feb 2001, revised 28 Feb 2001},
  author={Wenbo Mao},
  year=2001
}