Hidden attribute-based signcryption scheme for lattice
Article first published online: 30 SEP 2013
Copyright © 2013 John Wiley & Sons, Ltd.
Security and Communication Networks
How to Cite
Xiang, X., Li, H., Wang, M. and Liu, Z. (2013), Hidden attribute-based signcryption scheme for lattice. Security Comm. Networks. doi: 10.1002/sec.875
- Article first published online: 30 SEP 2013
- Manuscript Accepted: 8 AUG 2013
- Manuscript Revised: 4 JUN 2013
- Manuscript Received: 15 JAN 2013
- lattice-based cryptography;
- short integer solution problem
As a novel cryptographic primitive, signcryption realizes the function of digital signature and public-key encryption simultaneously, at a cost significantly lower than that of the traditional sign-then-encrypt approach. To the best of the authors’ knowledge, there is little works focusing on attribute-based signcryption (ABSC), especially in the setting of lattice-based cryptography. In this paper, we show that it is possible to construct hidden ABSC schemes based on lattice problems by presenting an ABSC scheme. In the random oracle model, the proposed scheme is proved to be indistinguishable against adaptively chosen ciphertext attacks under the learning with errors assumption and existentially unforgeable against adaptively chosen message attacks under the short integer solution assumption, respectively. Copyright © 2013 John Wiley & Sons, Ltd.