Online/Offline ring signature scheme

  • Authors:
  • Joseph K. Liu;Man Ho Au;Willy Susilo;Jianying Zhou

  • Affiliations:
  • Cryptography and Security Department, Institute for Infocomm Research, Singapore;Centre for Computer and Information Security (CCISR) School of Computer Science and Software Engineering, University of Wollongong, Australia;Centre for Computer and Information Security (CCISR) School of Computer Science and Software Engineering, University of Wollongong, Australia;Cryptography and Security Department, Institute for Infocomm Research, Singapore

  • Venue:
  • ICICS'09 Proceedings of the 11th international conference on Information and Communications Security
  • Year:
  • 2009

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Abstract

In this paper, for the first time in the literature, we introduce the notion of online/offline ring signature scheme. Our primitive enables ring signature schemes to be used in practice, since the online mechanism can be performed very efficiently and hence, it is very suitable to be used in a mobile-device environment. We provide a formal model to capture our primitive, and we proceed with a concrete construction of online/offline ring signature schemes. Finally, we show that our scheme is secure in our model.