Title: A new construction of identity-based group signature

Authors: Liqiong Ma

Addresses: Emei Campus of Southwest Jiaotong University, Emei, Sichuan, 614202, China

Abstract: Identity-based (simply ID-based) public key cryptosystem allows the user to use his identity as the public key, which can be a good alternative for certificate-based public key setting. Group signature allows any member of a group to sign on behalf of the group without revealing his identity. A complete ID-based group signature scheme was proposed in ACISP'06. However, it was very impractical. In this paper, we give a construction of identity-based group signatures. Then, we construct an efficient ID-based group signature scheme. We also show that the group signature scheme is provably secure in the random oracle model.

Keywords: digital signatures; identity-based group signatures; bilinear pairings; ID-based cryptosystems; ID-based signatures; ID-based group signatures; generic construction; provably secure; random oracle model; cryptography; security.

DOI: 10.1504/IJES.2014.060924

International Journal of Embedded Systems, 2014 Vol.6 No.1, pp.38 - 43

Received: 16 Jun 2013
Accepted: 26 Sep 2013
Published online: 31 Jul 2014 *

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