Efficient dynamic k-times anonymous authentication

  • Authors:
  • Lan Nguyen

  • Affiliations:
  • CSIRO ICT Centre, Australia, WinMagic, Canada

  • Venue:
  • VIETCRYPT'06 Proceedings of the First international conference on Cryptology in Vietnam
  • Year:
  • 2006

Quantified Score

Hi-index 0.00

Visualization

Abstract

In k-times anonymous authentication (k-TAA) schemes, members of a group can be anonymously authenticated to access applications for a bounded number of times determined by application providers. Dynamick-TAA allows application providers to independently grant or revoke group members from accessing their applications. Dynamic k-TAA can be applied in several scenarios, such as k-show anonymous credentials, digital rights management, anonymous trial of Internet services, e-voting, e-coupons etc. This paper proposes the first provably secure dynamic k-TAA scheme, where authentication costs do not depend on k. This efficiency is achieved by using a technique called “efficient provable e-tag”, which could be applicable to other e-tag systems.