Article Abstract

	Title:	Convertible identity-based anonymous designated ring signatures
	Author:	Yiqun Chen, Willy Susilo, Yi Mu
	Address:	School of IT and Computer Science, University of Wollongong, Northfields Avenue, NSW 2522, Australia. ' School of IT and Computer Science, University of Wollongong, Northfields Avenue, NSW 2522, Australia. ' School of IT and Computer Science, University of Wollongong, Northfields Avenue, NSW 2522, Australia
	Journal:	International Journal of Security and Networks 2006 - Vol. 1, No.3/4  pp. 218 - 225
	Abstract:	In this paper, we propose the concept of identity-based anonymous designated ring signature. This concept extends the existing notion of ring signatures in two ways: firstly, it allows a member from the ring to sign a message directed to a designated verifier, but secondly, we would like to have an anonymous designated verifier. At a glance, these two additional properties seem contradictory, but we shall show an example of a situation where this kind of primitive is required. We present a formal model of such a scheme and proceed with a construction based on bilinear pairings. Our scheme is provably secure under the random oracle model. We also present an extension of this concept, namely convertible identity-based anonymous designated ring signatures that allow the signer to prove the ownership of the signature, if necessary.
	Keywords:	peer-to-peer; P2P networks; ad-hoc networks; designated ring signatures; anonymity; security; identity-based.
	DOI:	10.1504/IJSN.2006.011781
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