Title: New attribute-based authentication and its application in anonymous cloud access service

Authors: Jin Li; Xiaofeng Chen; Xinyi Huang

Addresses: Department of Computer Science, Guangzhou University, Guangzhou 510500, China; State Key Laboratory of Integrated Service Networks (ISN), Xidian University, Xi'an 710071, China ' State Key Laboratory of Integrated Service Networks (ISN), Xidian University, Xi'an 710071, China ' School of Mathematics and Computer Science, Fujian Normal University, Fuzhou 350117, China

Abstract: Secure access control service in cloud computing has attracted much attention recently. Attribute-based signature (ABS for simplicity) is one of important cryptographic notions which can be utilised to realise anonymous authentication and access control in cloud computing. In this paper, we propose an efficient ABS with multiple authorities that can be proved with strong signer privacy and unforgeability. Signer privacy is enhanced due to the anonymous key-issuing protocol used in our scheme, that is, (a) the identity of signer is kept anonymous without revocation among all users whose attributes satisfying the predicate given in the signature; (b) the user can get the attribute private key while preventing the authorities from linking attributes of the user. In addition, our scheme supports batch verification, which greatly improves the verification efficiency.

Keywords: attribute based signatures; anonymous authentication; signer privacy; batch verification; access control; cloud computing; cloud services; access security; cryptography; unforgeability; private keys.

DOI: 10.1504/IJWGS.2015.067161

International Journal of Web and Grid Services, 2015 Vol.11 No.1, pp.125 - 141

Received: 15 Jun 2013
Accepted: 22 Mar 2014
Published online: 31 Jan 2015 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article