Research Article
An Identity-based Ring Signature Scheme with Enhanced Privacy
@INPROCEEDINGS{10.1109/SECCOMW.2006.359554, author={Chandana Gamage and Ben Gras and Bruno Crispo and Andrew S Tanenbaum}, title={An Identity-based Ring Signature Scheme with Enhanced Privacy}, proceedings={2nd International ICST Conference on Security and Privacy in Comunication Networks}, publisher={IEEE}, proceedings_a={SECURECOMM}, year={2007}, month={5}, keywords={}, doi={10.1109/SECCOMW.2006.359554} }- Chandana Gamage
Ben Gras
Bruno Crispo
Andrew S Tanenbaum
Year: 2007
An Identity-based Ring Signature Scheme with Enhanced Privacy
SECURECOMM
IEEE
DOI: 10.1109/SECCOMW.2006.359554
Abstract
There are many applications in which it is necessary to transmit authenticatable messages while achieving certain privacy goals such as signer ambiguity. The emerging area of vehicular ad-hoc network is a good example application domain with this requirement The ring signature technique that uses an ad-hoc group of signer identities is a widely used method for generating this type of privacy preserving digital signatures. The identity-based cryptographic techniques do not require certificates. The construction of ring signatures using identity-based cryptography allow for privacy preserving digital signatures to be created in application when certificates are not readily available or desirable such as in vehicle area networks. We propose a new designated verifier identity-based ring signature scheme that is secure against full key exposure attacks even for a small group size. This is a general purpose primitive that can be used in many application domains such as ubiquitous computing where signer ambiguity is required in small groups. We consider the usefulness of identity-based cryptographic primitives in vehicular ad-hoc networks and use a specific example application to illustrate the use of identity-based ring signatures as a tool to create privacy preserving authenticatable messages
