An Expressive Attribute-based Signature Scheme without Random Oracles

DOI

10.2991/iccasm.2012.142How to use a DOI?

Keywords

ABS,random oracles, policy, IBE

Abstract

Attribute-based signatures (ABS) is a new cryptographic primitive and can play a great role in attributebased access control systems. In ABS, a signer can choose its attributes satisfying a policy of a verifier to generate a valid signature without reveal its identity or attributes, while the signature assures that the message is endorsed by an individual owning attributes the policy requiring. However, most existing works of ABS need random oracles, which is unpractical and results in the dependence of security on hash functions. In this paper, we refer to the mature techniques used in identity-based encryption (IBE) to propose an ABS scheme without random oracles. Our scheme support any expressive policy consisting of AND, OR, threshold gates, which offers great flexibility to the implementation of access control.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Dan Cao
AU  - Tianzuo Wang
AU  - Xiaofeng Wang
AU  - Jinshu Su
PY  - 2012/08
DA  - 2012/08
TI  - An Expressive Attribute-based Signature Scheme without Random Oracles
BT  - Proceedings of the 2012 International Conference on Computer Application and System Modeling (ICCASM 2012)
PB  - Atlantis Press
SP  - 560
EP  - 564
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccasm.2012.142
DO  - 10.2991/iccasm.2012.142
ID  - Cao2012/08
ER  -