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An Efficient One-move Nominative Signature Scheme
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| 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. |
BibTeX
@misc{eprint-2007-13541,
title={An Efficient One-move Nominative Signature Scheme},
booktitle={IACR Eprint archive},
keywords={public-key cryptography / Digital Signatures, Nominative Signatures},
url={http://eprint.iacr.org/2007/260},
note={ dliu@cs.cityu.edu.hk 13713 received 3 Jul 2007, last revised 19 Jul 2007},
author={Dennis Y. W. Liu and Qiong Huang and Duncan S. Wong},
year=2007
}