An Efficient One-move Nominative Signature Scheme

Dennis Y.  W.  Liu; Qiong Huang; Duncan S.  Wong

Paper 2007/260

An Efficient One-move Nominative Signature Scheme

Dennis Y. W. Liu, Qiong Huang, and Duncan S. Wong

Abstract

A signer in a Nominative Signature (NS) scheme can arbitrarily choose a nominee, then jointly generate a signature in such a way that the signature can only be verified with the nominee's consent. NS is particularly useful in user certification systems. Currently, the only secure NS scheme available requires multi-round communications between the nominator and the nominee during signature generation. This implies that an NS-based user certification system requires a certification issuer to interact with a user using a complicated multi-round protocol for certificate issuance. It remains an open problem to construct an efficient and non-interactive NS scheme. In this paper, we solve this problem by proposing the first efficient one-move (i.e. non-interactive) NS scheme. In addition, we propose an enhanced security requirement called Strong Invisibility, and prove that our scheme satisfies this strong security requirement.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Published elsewhere. Unknown where it was published
Keywords: Digital Signatures Nominative Signatures
Contact author(s): dliu @ cs cityu edu hk
History: 2007-07-19: last of 2 revisions; 2007-07-03: received; See all versions
Short URL: https://ia.cr/2007/260
License: CC BY

BibTeX

@misc{cryptoeprint:2007/260,
      author = {Dennis Y.  W.  Liu and Qiong Huang and Duncan S.  Wong},
      title = {An Efficient One-move Nominative Signature Scheme},
      howpublished = {Cryptology {ePrint} Archive, Paper 2007/260},
      year = {2007},
      url = {https://eprint.iacr.org/2007/260}
}