ID-Based Proxy Signature Using Bilinear Pairings

Jing Xu; Zhenfeng Zhang; Dengguo Feng

Paper 2004/206

ID-Based Proxy Signature Using Bilinear Pairings

Jing Xu, Zhenfeng Zhang, and Dengguo Feng

Abstract

Identity-based (ID-based) public key cryptosystem can be a good alternative for certificate-based public key setting, especially when efficient key management and moderate security are required. A proxy signature scheme permits an entity to delegate its signing rights to another entity. But to date, no ID-based proxy signature schemes with provable security have been proposed. In this paper, we formalize a notion of security for ID-based proxy signature schemes and propose a scheme based on the bilinear pairings. We show that the security of our scheme is tightly related to the computational Diffie-Hellman assumption in the random oracle model.

Metadata

Available format(s): PDF
Publication info: Published elsewhere. Unknown where it was published
Keywords: ID-based signatures proxy signatures bilinear pairings provable security.
Contact author(s): xujing @ is iscas ac cn
History: 2004-08-23: revised; 2004-08-21: received; See all versions
Short URL: https://ia.cr/2004/206
License: CC BY

BibTeX

@misc{cryptoeprint:2004/206,
      author = {Jing Xu and Zhenfeng Zhang and Dengguo Feng},
      title = {ID-Based Proxy Signature Using Bilinear Pairings},
      howpublished = {Cryptology ePrint Archive, Paper 2004/206},
      year = {2004},
      note = {\url{https://eprint.iacr.org/2004/206}},
      url = {https://eprint.iacr.org/2004/206}
}