Title: Efficient VLR group signatures for smart cards
Authors: Kamil Kluczniak; Lucjan Hanzlik; Jianfeng Wang
Addresses: Department of Computer Science, Wroclaw University of Science and Technology, Wroclaw, Poland ' Department of Computer Science, Wroclaw University of Science and Technology, Wroclaw, Poland ' State Key Laboratory of Integrated Service Networks (ISN), Xidian University, Xi'an, China
Abstract: Group signatures are signature schemes which reveal only the group membership information of the signer. Verifier local revocation group signatures are group signatures which do not require the signer to update his secret key in order to provide revocation in the group. In this paper, we design a practical verifier local revocation group signature based on bilinear maps. Our scheme is the first VLR group signature using pairings which does not require expensive operations done by a signer, like exponentiation in the target group or pairing evaluation. This makes our signature scheme especially suitable for implementation on devices with restricted resources like smart cards.
Keywords: VLR group signatures; smart cards; resource restricted hardware; strong Diffie-Hellman assumption; revocation.
International Journal of Embedded Systems, 2018 Vol.10 No.3, pp.203 - 216
Received: 28 Aug 2015
Accepted: 07 Nov 2016
Published online: 16 May 2018 *