### 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

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

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},
note = {\url{https://eprint.iacr.org/2003/206}},
url = {https://eprint.iacr.org/2003/206}
}

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