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A New Designated Confirmer Signature Variant with Intended Recipient

Authors:
Yong Li
Dingyi Pei
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URL: http://eprint.iacr.org/2004/288
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Abstract: Previous designated confirmer signature schemes were less efficient because complex zero-knowledge proof employed in confirmation and disavowal protocol. In this paper, we propose a new efficient signature scheme which is recipient-specific and confirmer-specific. The new scheme is transformed from ID-based chameleon signature and inherits its advantage in simplicity and efficiency. The scheme's security relies on the underlying secure chameleon signature and public key encryption scheme. We also considers the case of confirmer as an adversary in security proof.
BibTeX
@misc{eprint-2004-12254,
  title={A New Designated Confirmer Signature Variant with Intended Recipient},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography / digital signature},
  url={http://eprint.iacr.org/2004/288},
  note={ liy_bs@mails.gscas.ac.cn 12989 received 3 Nov 2004, withdrawn 25 Jul 2005},
  author={Yong Li and Dingyi Pei},
  year=2004
}