Title: Attribute-based group signature without random oracles with attribute anonymity

Authors: Syed Taqi Ali; B.B. Amberker

Addresses: Department of Computer Engineering, National Institute of Technology Kurukshetra, Haryana – 136119, India ' Department of Computer Science and Engineering, National Institute of Technology Warangal, A.P. – 506004, India

Abstract: Attribute-based group signature (ABGS) scheme is a kind of group signature scheme where the group members possessing certain privileges (attributes) only are eligible for signing the document. There are ABGS schemes secure under random oracle models, have signature length linear in terms of number of attributes also do not provide attribute anonymity. We have come up with an ABGS scheme, which provides attribute anonymity, has short signature length independent of number of attributes and proven that it is secure under the standard model.

Keywords: attributes; group signatures; attribute anonymity; standard model; short signature; information security; random oracles.

DOI: 10.1504/IJICS.2014.065162

International Journal of Information and Computer Security, 2014 Vol.6 No.2, pp.109 - 132

Received: 07 Jan 2013
Accepted: 14 Jan 2014

Published online: 15 Oct 2014 *

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