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
Creative Commons Attribution
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},
      note = {\url{https://eprint.iacr.org/2008/305}},
      url = {https://eprint.iacr.org/2008/305}
}
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