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Affiliation-hiding authenticated asymmetric group key agreement
Faculty of Informatics - Papers (Archive)
  • C Xu
  • Zhirong Li
  • Yi Mu, University of Wollongong
  • H-W Guo
  • T Guo, China Information Technology Security Evaluation Center
RIS ID
68825
Publication Date
1-1-2012
Publication Details

Xu, C., Li, Z., Mu, Y., Guo, H. & Guo, T. (2012). Affiliation-hiding authenticated asymmetric group key agreement. Computer Journal, 55 (10), 1180-1191.

Abstract
We introduce the concept of Affiliation-Hiding Authenticated Asymmetric Group Key Agreement AH-AAGKA and construct a concrete one-round AH-AAGKA protocol. An AH-AAGKA protocol allows the participants of a group to establish a common encryption key associated with several decryption keys; each of which can only be computed by the corresponding legitimate group member. An AH-AAGKA protocol has the following privacy feature. For a member i of a group G, if i participates in an AH-AAGKA protocol, any protocol participant j cannot learn whether i is a member of G, unless j himself is a member of group G. Our scheme demonstrates new features in comparison with other existing AH-AGKA protocols. If non-group members participate in our protocol, honest parties can identify these non-group members. Our scheme also captures Unlinkability and Perfect Forward Secrecy PFS, which are missing in other existing schemes. We propose a novel security model to prove that our protocol holds PFS and present a new privacy model to prove that our scheme meets Affiliation-Hiding property.
Citation Information
C Xu, Zhirong Li, Yi Mu, H-W Guo, et al.. "Affiliation-hiding authenticated asymmetric group key agreement" (2012) p. 1180 - 1191
Available at: http://works.bepress.com/ymu/74/