doi: 10.4304/jsw.6.10.1890-1897
Provably Security Identity-based Sanitizable Signature Scheme without Random Oracles
- 1 School of Information Engineering, Chang’an University, Xi’an 710064, China
- 2 School of Sciences, Xi’an University of Technology, Xi’an 710054, China
- 3 College of Science, Hebei Polytechnic University, Tang Shan 063009, China
Abstract
A sanitizable signature scheme is a signature which allows a semi-trusted party called sanitizer to hide parts of the original message after the message is signed, without interacting with the signer. A verifier can confirm the integrity of disclosed parts of the sanitized document from the signature. Sanitizable signatures are quite useful in governmental or military offices, where there is a dilemma between disclosure requirements of documents and private secret. In this paper, we give a formal definition and secure model of identity-based sanitizable signature by combining identity-based cryptography and sanitizable signature. Motivated by Waters’ signature scheme, we present an identity-based sanitizable signature scheme without random oracles (in the standard model) using bilinear pairing. Finally, security analysis shows that our proposed scheme satisfies all the security requirements.
Keywords
- identity-based signature
- sanitizable si
How to Cite
Yang Ming, Xiaoqin Shen, and Yamian Peng, "Provably Security Identity-based Sanitizable Signature Scheme without Random Oracles," Journal of Software, vol. 6, no. 10, pp. 1890-1897, 2011. https://doi.org/ 10.4304/jsw.6.10.1890-1897
Copyright & License
Copyright © 2011 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).