Paper 2008/305 Original: eprint.iacr.org/2008/305 ↗
Identity-Based Directed Signature Scheme from Bilinear Pairings
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
- Preprint.
- History
- 2008-07-08: last updated
- 2008-07-08: published
- Short URL
- https://ia.cr/2008/305
- License
- https://creativecommons.org/licenses/by/4.0/
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}
}