Paper 2008/305
Identity-Based Directed Signature Scheme from Bilinear Pairings
Xun Sun, Jian-hua Li, Gong-liang Chen, and Shu-tang Yang
Abstract
In a directed signature scheme, a verifier can exclusively verify the signatures designated to himself, and shares with the signer the ability to prove correctness of the signature to a third party when necessary. Directed signature schemes are suitable for applications such as bill of tax and bill of health. This paper studies directed signatures in the identity-based setting. We first present the syntax and security notion that includes unforgeability and invisibility, then propose a concrete identity-based directed signature scheme from bilinear pairings. We then prove our scheme existentially unforgeable under the computational Diffie-Hellman assumption, and invisible under the decisional Bilinear Diffie-Hellman assumption, both in the random oracle model.
Metadata
- Available format(s)
-
PDF
- Category
- Applications
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Bilinear pairingsDirected signatureExistential unforgeabilityIdentity-based cryptographyInvisibility
- Contact author(s)
- xun sun cn @ gmail com
- History
- 2008-07-08: received
- Short URL
- https://ia.cr/2008/305
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2008/305,
author = {Xun Sun and Jian-hua Li and Gong-liang Chen and Shu-tang Yang},
title = {Identity-Based Directed Signature Scheme from Bilinear Pairings},
howpublished = {Cryptology {ePrint} Archive, Paper 2008/305},
year = {2008},
url = {https://eprint.iacr.org/2008/305}
}
