Identity Based  Undeniable Signatures

Benoît Libert; Jean-Jacques Quisquater

Paper 2003/206

Identity Based Undeniable Signatures

Benoît Libert and Jean-Jacques Quisquater

Abstract

In this paper, we give a first example of identity based undeniable signature using pairings over elliptic curves. We extend to the identity based setting the security model for the notions of invisibility and anonymity given by Galbraith and Mao in 2003 and we prove that our scheme is existentially unforgeable under the Bilinear Diffie-Hellman assumption in the random oracle model. We also prove that it has the invisibility property under the Decisional Bilinear Diffie-Hellman assumption and we discuss about the efficiency of the scheme.

Note: The scheme proposed in this paper has been slightly corrected according to a remark from Fangguo Zhang

Metadata

Available format(s): PDF PS
Category: Public-key cryptography
Publication info: Published elsewhere. extended version of a paper to appear at CT-RSA 2004
Keywords: ID-based cryptography undeniable signatures
Contact author(s): libert @ dice ucl ac be
History: 2003-10-15: last of 4 revisions; 2003-09-29: received; See all versions
Short URL: https://ia.cr/2003/206
License: CC BY

BibTeX

@misc{cryptoeprint:2003/206,
      author = {Benoît Libert and Jean-Jacques Quisquater},
      title = {Identity Based  Undeniable Signatures},
      howpublished = {Cryptology {ePrint} Archive, Paper 2003/206},
      year = {2003},
      url = {https://eprint.iacr.org/2003/206}
}